Add paired audio models for G043_airship_kitchen (20261105)

outputs/G043_airship_kitchen/assets/audio/G043_sfx_001/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fddba23c27f1045eeb5cd9080ca699e7e24c5fc67c4b212e0ced73b99673e231
+size 115244

outputs/G043_airship_kitchen/assets/audio/G043_sfx_001/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:970def303c7c4519a759fed6c120c9c976b4172d89c8ef413bd0d8583b179c70
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_001/meta.json

@@ -137,5 +137,114 @@
     "issues": [],
     "authorization_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_completion_authorization.json",
     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "fddba23c27f1045eeb5cd9080ca699e7e24c5fc67c4b212e0ced73b99673e231",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.6,
+        "original_target_duration_sec": 0.6,
+        "requested_duration_sec": 0.6,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "New order ticket bell with paper snap, bright brass ding suitable for kitchen pass rail",
+        "actual_prompt_or_text": "New order ticket bell with paper snap, bright brass ding suitable for kitchen pass rail. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "New order ticket bell with paper snap, bright brass ding suitable for kitchen pass rail. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 0.6,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "b828e5676424409bb9e510abd21ca1fa",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "b5056b60ea61e679def414c324c3d071bf827e30d1b9d71d47daedbf06bb1c3a",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "970def303c7c4519a759fed6c120c9c976b4172d89c8ef413bd0d8583b179c70",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.6,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "New order ticket bell with paper snap, bright brass ding suitable for kitchen pass rail",
+        "actual_prompt_or_text": "New order ticket bell with paper snap, bright brass ding suitable for kitchen pass rail. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "New order ticket bell with paper snap, bright brass ding suitable for kitchen pass rail. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 1,
+          "seed": 5431,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "478fe9fc71fb48b482769a428333163b241aaf5f5fd0a34dd07026a80c82b7a9",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "4b7ce36ed24263dd79300c27b4e2e36f79501625268991d919e2769633ee1f26",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:09.120619+00:00",
+        "completed_at": "2026-11-04T15:58:15.860787+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.740168
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_002/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:79866772002dab77c82b69e81c70da6f6f64937abab6fbce8dc692b57940a27f
+size 92238

outputs/G043_airship_kitchen/assets/audio/G043_sfx_002/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b901932b7819fa03b418b26b476a8cf64ce65049a4bd3e3307551cc7b009c258
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_002/meta.json

@@ -136,5 +136,114 @@
     "authorization_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_completion_authorization.json",
     "screening_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_repair/G043_airship_kitchen/screening.json",
     "human_listening_claimed": false
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "79866772002dab77c82b69e81c70da6f6f64937abab6fbce8dc692b57940a27f",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.48,
+        "original_target_duration_sec": 0.5,
+        "requested_duration_sec": 0.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Station work start cue, short water splash / knife tap / griddle sizzle hybrid tick per station start",
+        "actual_prompt_or_text": "Station work start cue, short water splash / knife tap / griddle sizzle hybrid tick per station start",
+        "generation_request": {
+          "prompt": "Station work start cue, short water splash / knife tap / griddle sizzle hybrid tick per station start",
+          "duration": 0.5,
+          "loop": false,
+          "prompt_influence": 0.3
+        },
+        "generation_id": "aeccbc34d4e241948ab0ad58163d0599",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "273c675d0480d1be8c8cfa3d7d7b9409fb45b6510d910565df3fda0689692905",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:19:44.750390+00:00",
+        "completed_at": "2026-11-04T15:19:51.283427+00:00",
+        "cost": {
+          "new_fee_usd": "0.0011",
+          "fee_basis": "Settled provider prediction ledger as displayed; rounding differs from precise quote/account debit",
+          "fee_status": "SETTLED_LEDGER_DISPLAYED_PRECISION",
+          "precise_quote_or_fixed_rate_usd": "0.00110",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 6.533037
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "b901932b7819fa03b418b26b476a8cf64ce65049a4bd3e3307551cc7b009c258",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.5,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Station work start cue, short water splash / knife tap / griddle sizzle hybrid tick per station start",
+        "actual_prompt_or_text": "Station work start cue, short water splash / knife tap / griddle sizzle hybrid tick per station start",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Station work start cue, short water splash / knife tap / griddle sizzle hybrid tick per station start",
+          "duration": 1,
+          "seed": 5432,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "33ce8ba8cc5223d411b70e72c817d8b6a57179ebf18d5c194d01f04e96fe14c2",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "0655d989d57d73d48ee725fdfc1d06dfc530c5c3e7fed6550aa08565ee0d181e",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:13.177619+00:00",
+        "completed_at": "2026-11-04T15:58:20.045550+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.867931
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_003/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:564740663324b80b5e6493bb9f71d2b95fad172502796c57ca07b6280fab4719
+size 115244

outputs/G043_airship_kitchen/assets/audio/G043_sfx_003/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c80e1db7d83b50a30d3a3e2e241262c9c83c9597aff466ec85cf7ba9b73e0dc7
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_003/meta.json

@@ -736,5 +736,114 @@
       "method_sha256": "dcc7f4d00424b551fde99e14025819a0f5277a0518564eac10ace63012c18760"
     },
     "human_listening_claimed": false
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "564740663324b80b5e6493bb9f71d2b95fad172502796c57ca07b6280fab4719",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.6,
+        "original_target_duration_sec": 0.6,
+        "requested_duration_sec": 0.6,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Station step complete chime, bright double tick with small steam hiss tail",
+        "actual_prompt_or_text": "Station step complete chime, bright double tick with small steam hiss tail. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Station step complete chime, bright double tick with small steam hiss tail. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 0.6,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "8ed3cf8bb6a147b592eecc541b590b4f",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "5ce46fd46e732d06f8a022c0ce57b6e05a441d5653ce20d647b7b8a4e5c19d0e",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "c80e1db7d83b50a30d3a3e2e241262c9c83c9597aff466ec85cf7ba9b73e0dc7",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.6,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Station step complete chime, bright double tick with small steam hiss tail",
+        "actual_prompt_or_text": "Station step complete chime, bright double tick with small steam hiss tail. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Station step complete chime, bright double tick with small steam hiss tail. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 1,
+          "seed": 5433,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "f536f390c71faaebbcc404b809e44319f09ad68f26767b72ea1ef360d3387dec",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "6aea63beeccb3d139b926a130282ff8c711d519f9f709bcad06810d93b9479c0",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:15.873533+00:00",
+        "completed_at": "2026-11-04T15:58:23.246530+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 7.372997
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_004/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dddc0b7acf6ea3de698c010cd011f41c75bac4ddde8db1e45aaa7e0dd20c430f
+size 92204

outputs/G043_airship_kitchen/assets/audio/G043_sfx_004/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f7264ce9e0dffd5ea0bf6fee7f38ffe740a1f5a1d1d39e04ba8fd588f496a057
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_004/meta.json

@@ -135,5 +135,114 @@
     "issues": [],
     "authorization_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_completion_authorization.json",
     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "dddc0b7acf6ea3de698c010cd011f41c75bac4ddde8db1e45aaa7e0dd20c430f",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.48,
+        "original_target_duration_sec": 0.5,
+        "requested_duration_sec": 0.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Denied interaction cue with switchable profiles: busy-station soft knock, invalid-place low buzz, waste-drop thud",
+        "actual_prompt_or_text": "Denied interaction cue with switchable profiles: busy-station soft knock, invalid-place low buzz, waste-drop thud. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Denied interaction cue with switchable profiles: busy-station soft knock, invalid-place low buzz, waste-drop thud. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 0.5,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "2475f21c3cdb411e9f2293411e8e2947",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "9ab118a58dd5dfa27a66d3c9ef04068c3909b63056fd316eb80b031b0f508d08",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "f7264ce9e0dffd5ea0bf6fee7f38ffe740a1f5a1d1d39e04ba8fd588f496a057",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.5,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Denied interaction cue with switchable profiles: busy-station soft knock, invalid-place low buzz, waste-drop thud",
+        "actual_prompt_or_text": "Denied interaction cue with switchable profiles: busy-station soft knock, invalid-place low buzz, waste-drop thud. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Denied interaction cue with switchable profiles: busy-station soft knock, invalid-place low buzz, waste-drop thud. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 1,
+          "seed": 5434,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "7e8fd9ba1aa4d4871cdf36dc6a2215c5ce251b31c21bb6f86d6ad8f4c67e0bc6",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "729a5677a78904d582ea65946da521783a87fe83da67df43ae95238435bb216a",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:20.056379+00:00",
+        "completed_at": "2026-11-04T15:58:26.611572+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.555193
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_005/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c16d76556b4a4254cb4f8c1fa213d3be2c75bc1246ef388b06d81ee0f8bdd881
+size 92238

outputs/G043_airship_kitchen/assets/audio/G043_sfx_005/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:77024afc862a3952fd06c0591b653c1b89e1cfbe37d3598562ff453dc1412e3d
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_005/meta.json

@@ -533,5 +533,114 @@
         }
       ]
     }
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "c16d76556b4a4254cb4f8c1fa213d3be2c75bc1246ef388b06d81ee0f8bdd881",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.48,
+        "original_target_duration_sec": 0.5,
+        "requested_duration_sec": 0.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Handoff pass whoosh with light ceramic clink as item travels between chefs",
+        "actual_prompt_or_text": "Handoff pass whoosh with light ceramic clink as item travels between chefs",
+        "generation_request": {
+          "prompt": "Handoff pass whoosh with light ceramic clink as item travels between chefs",
+          "duration": 0.5,
+          "loop": false,
+          "prompt_influence": 0.3
+        },
+        "generation_id": "f690657ff9bd468c8199bcbec469c644",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "a4f0e9e935bf3d52862f511fcce48d75ccce0dc4e6674c81a904ee514ea89f16",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:19:50.558306+00:00",
+        "completed_at": "2026-11-04T15:19:57.539025+00:00",
+        "cost": {
+          "new_fee_usd": "0.0011",
+          "fee_basis": "Settled provider prediction ledger as displayed; rounding differs from precise quote/account debit",
+          "fee_status": "SETTLED_LEDGER_DISPLAYED_PRECISION",
+          "precise_quote_or_fixed_rate_usd": "0.00110",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 6.980719
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "77024afc862a3952fd06c0591b653c1b89e1cfbe37d3598562ff453dc1412e3d",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.5,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Handoff pass whoosh with light ceramic clink as item travels between chefs",
+        "actual_prompt_or_text": "Handoff pass whoosh with light ceramic clink as item travels between chefs",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Handoff pass whoosh with light ceramic clink as item travels between chefs",
+          "duration": 1,
+          "seed": 5435,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "48711ccfd6793979257bc99bfc6f6d2a223c0d097215c49d2fb0f8b35943fbb1",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "96b947b6f4333e7fdff103b112c20cdbaedd34af38ea8d377904dbea6f162340",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:23.256482+00:00",
+        "completed_at": "2026-11-04T15:58:30.064242+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.80776
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_006/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e8375e04d6bb895a3f9ac457ee420f7e8d4a4ca7daea5d3e19d5b62a5f306ce0
+size 130652

outputs/G043_airship_kitchen/assets/audio/G043_sfx_006/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d0c78509c3bd910810ac73fdffa42f6147cc9bf6f6a0b877bc84b06c8e4d10bb
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_006/meta.json

@@ -749,5 +749,114 @@
       "method_sha256": "dcc7f4d00424b551fde99e14025819a0f5277a0518564eac10ace63012c18760"
     },
     "human_listening_claimed": false
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "e8375e04d6bb895a3f9ac457ee420f7e8d4a4ca7daea5d3e19d5b62a5f306ce0",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.68025,
+        "original_target_duration_sec": 0.7,
+        "requested_duration_sec": 0.7,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Serve complete: plate slide on brass hatch shelf with satisfying bell ding",
+        "actual_prompt_or_text": "Serve complete: plate slide on brass hatch shelf with satisfying bell ding. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Serve complete: plate slide on brass hatch shelf with satisfying bell ding. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 0.7,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "8a05b8f3d4894d969aa44f5bb55f3077",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "f41da6a8cf794a5f90d93f7c129faa6af63b38e37fbb46a007f9a58efd97582a",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "d0c78509c3bd910810ac73fdffa42f6147cc9bf6f6a0b877bc84b06c8e4d10bb",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.7,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Serve complete: plate slide on brass hatch shelf with satisfying bell ding",
+        "actual_prompt_or_text": "Serve complete: plate slide on brass hatch shelf with satisfying bell ding. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Serve complete: plate slide on brass hatch shelf with satisfying bell ding. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 1,
+          "seed": 5436,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "d4bc5a6bddf0cf254f27eea8a56ddd2b624c9b58e5e8360fb03e8af35fb8ffb2",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "d6612d65eaaff10dfd39875a9b28c908aeb8e5c448216b6287b23e5ea75ea434",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:26.621782+00:00",
+        "completed_at": "2026-11-04T15:58:33.359898+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.738116
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_007/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a8b6734f94e6fd7a1a9a18980475f9bbf3253f8db14aeb8984e20a75a7e44c39
+size 169004

outputs/G043_airship_kitchen/assets/audio/G043_sfx_007/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a27cd601caff70a779374eeb3791e31b33748fb1e45667b703bb67833ede8029
+size 192078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_007/meta.json

@@ -782,5 +782,114 @@
       "method_sha256": "e8463ff69aa5600146121014d10ec2a18b4ff64085643526ef9192284bacbc26"
     },
     "human_listening_claimed": false
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": false
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "a8b6734f94e6fd7a1a9a18980475f9bbf3253f8db14aeb8984e20a75a7e44c39",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 0.88,
+        "original_target_duration_sec": 0.9,
+        "requested_duration_sec": 0.9,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Order timeout cue with alarm profile: sand-shatter hiss and low warning tone, urgent but short",
+        "actual_prompt_or_text": "Order timeout cue with alarm profile: sand-shatter hiss and low warning tone, urgent but short. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Order timeout cue with alarm profile: sand-shatter hiss and low warning tone, urgent but short. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 0.9,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "a0e652381a224367b26c33504503edf8",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "895b4745016b8306e624f6789e685e8300ddd057477d4744b8a37e79c166f5cb",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "a27cd601caff70a779374eeb3791e31b33748fb1e45667b703bb67833ede8029",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 1.0,
+        "original_target_duration_sec": 0.9,
+        "requested_duration_sec": 1,
+        "duration_request_adjusted_to_endpoint_range": true,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Order timeout cue with alarm profile: sand-shatter hiss and low warning tone, urgent but short",
+        "actual_prompt_or_text": "Order timeout cue with alarm profile: sand-shatter hiss and low warning tone, urgent but short. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Order timeout cue with alarm profile: sand-shatter hiss and low warning tone, urgent but short. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 1,
+          "seed": 5437,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "cf65c8daed0515b6285aa54bcab7fe3c4f4ea31861374af109ed36016e06178f",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "e14163ec62e02088a2c52bbfe4d990f25fb69e732ae450e9d8486599f0f30133",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:58:30.073729+00:00",
+        "completed_at": "2026-11-04T15:58:36.521676+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": ".08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": "Duration differs from source task and may differ between model groups; not a matched-duration result."
+        },
+        "observed_latency_sec_including_network": 6.447947
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_008/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ced52f199ebb1a7107f0c047427a75cc84f1359ecfe149c49cfd721a0477055c
+size 476204

outputs/G043_airship_kitchen/assets/audio/G043_sfx_008/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:848e4f01ba75a61763f9897bbcbcb53270cb1c60c9122bac6cffef05e60344fd
+size 384078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_008/meta.json

@@ -136,5 +136,114 @@
     "issues": [],
     "authorization_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_completion_authorization.json",
     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": true
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "ced52f199ebb1a7107f0c047427a75cc84f1359ecfe149c49cfd721a0477055c",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 2.48,
+        "original_target_duration_sec": 2.5,
+        "requested_duration_sec": 2.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Shift success sting, warm brass band rising with cloud-wind tail, celebratory but light",
+        "actual_prompt_or_text": "Shift success sting, warm brass band rising with cloud-wind tail, celebratory but light. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Shift success sting, warm brass band rising with cloud-wind tail, celebratory but light. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 2.5,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "f1f0c5a7759448a9b609359b61a57a3b",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "9bb42ea1e99f11883dc30a9fadbb53b78c715708f6968f71f7eb0aef9d05afb7",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "848e4f01ba75a61763f9897bbcbcb53270cb1c60c9122bac6cffef05e60344fd",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 2.0,
+        "original_target_duration_sec": 2.5,
+        "requested_duration_sec": 2.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Shift success sting, warm brass band rising with cloud-wind tail, celebratory but light",
+        "actual_prompt_or_text": "Shift success sting, warm brass band rising with cloud-wind tail, celebratory but light. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Shift success sting, warm brass band rising with cloud-wind tail, celebratory but light. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 2.5,
+          "seed": 5438,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "86a6d474f2d8bc80900ae059f702385fe3a697f02350bb305ada03bd00f8c3fe",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "4d29776c5c941f1adfe8e66a0a5b6fc35f5be4938cf0f01728aec86b832253c2",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:07:22.831049+00:00",
+        "completed_at": "2026-11-04T15:07:29.801254+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": "0.08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 6.970205
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_009/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5e9d609ab25ef0302ac74f14ff084c7baee609a4d274d96ae8822dbde06570b6
+size 476204

outputs/G043_airship_kitchen/assets/audio/G043_sfx_009/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2289babf0c32f94fc2ca9ea929bd2195a155eac4155d7c466f5883be63b2e88d
+size 384078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_009/meta.json

@@ -136,5 +136,114 @@
     "issues": [],
     "authorization_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_completion_authorization.json",
     "basis": "Whole PCM integrity, canonical source, original source-family/ASR evidence, native duration and loop diagnostics. No waveform modification or human listening claimed."
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": true
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "5e9d609ab25ef0302ac74f14ff084c7baee609a4d274d96ae8822dbde06570b6",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 2.48,
+        "original_target_duration_sec": 2.5,
+        "requested_duration_sec": 2.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Shift defeat sting, low brass and soft engine winding down, gentle disappointment",
+        "actual_prompt_or_text": "Shift defeat sting, low brass and soft engine winding down, gentle disappointment. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "prompt": "Shift defeat sting, low brass and soft engine winding down, gentle disappointment. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 2.5,
+          "loop": false,
+          "prompt_influence": 0.65
+        },
+        "generation_id": "b5e8b90be9274a6cb00fbdb09002897e",
+        "source_result_status": "REUSED_LEGACY",
+        "recovery_condition": null,
+        "human_review": "HISTORICAL_REVIEW_SEPARATELY_RECORDED",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "f2a9b956e1641408d5cda315b2b6970ce7d02fcd8bcb2279e7a3d038a532e120",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": null,
+        "completed_at": null,
+        "cost": {
+          "new_fee_usd": "0",
+          "fee_basis": "No new paid generation in this batch",
+          "fee_status": "NO_NEW_CHARGE",
+          "precise_quote_or_fixed_rate_usd": "0",
+          "historical_reuse": true,
+          "comparison_budget_boundary": "Historical first candidate in recorded batch; not claimed newly generated, equal-budget, or first-ever model trial.",
+          "historical_cost_not_recharged": true
+        }
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "2289babf0c32f94fc2ca9ea929bd2195a155eac4155d7c466f5883be63b2e88d",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 2.0,
+        "original_target_duration_sec": 2.5,
+        "requested_duration_sec": 2.5,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": true,
+        "original_task_prompt_or_text": "Shift defeat sting, low brass and soft engine winding down, gentle disappointment",
+        "actual_prompt_or_text": "Shift defeat sting, low brass and soft engine winding down, gentle disappointment. Clear isolated sound starting promptly and ending naturally.",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Shift defeat sting, low brass and soft engine winding down, gentle disappointment. Clear isolated sound starting promptly and ending naturally.",
+          "duration": 2.5,
+          "seed": 5439,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "1f7d5ac4ef3438acd6ad3b663973e7408b3c44466ce3e8d5bce356b4af9d228b",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "6a4846edc8a927fbd682e555f16159f36fde694ac1fca3563f1935dc3c8f3595",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:07:24.734385+00:00",
+        "completed_at": "2026-11-04T15:07:32.341196+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": "0.08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 7.606811
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_010/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4763589e1dc4a57ac3dd609bb1610709b9de818f9102df9ce8964c935c880059
+size 2304078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_010/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1b05fa5d010228c975d26da90b3a935197c8a8f029fb7df3eb61aadbb969c55b
+size 2304078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_010/meta.json

@@ -208,5 +208,114 @@
       "internal_spectral_js_p95": 0.0852779451504798,
       "control_validation_file": "/home/yyy/bench/audio_production/20261017_verified/loop_boundary_review/control_validation.json"
     }
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": true
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "4763589e1dc4a57ac3dd609bb1610709b9de818f9102df9ce8964c935c880059",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 12.0,
+        "original_target_duration_sec": 12.0,
+        "requested_duration_sec": 12,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Seamless airship engine hum with cloud-sea wind, steady low drone with occasional creak, no voices or music",
+        "actual_prompt_or_text": "Seamless airship engine hum with cloud-sea wind, steady low drone with occasional creak, no voices or music",
+        "generation_request": {
+          "prompt": "Seamless airship engine hum with cloud-sea wind, steady low drone with occasional creak, no voices or music",
+          "duration": 12,
+          "loop": true,
+          "prompt_influence": 0.3
+        },
+        "generation_id": "1f9f76dc09dd475993346af923406de1",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "be96dd090c8507a6173325531e11e9662af8b31200583386c357b7e0436f2145",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:19:51.800330+00:00",
+        "completed_at": "2026-11-04T15:19:58.494048+00:00",
+        "cost": {
+          "new_fee_usd": "0.0264",
+          "fee_basis": "Settled provider prediction ledger as displayed; rounding differs from precise quote/account debit",
+          "fee_status": "SETTLED_LEDGER_DISPLAYED_PRECISION",
+          "precise_quote_or_fixed_rate_usd": "0.0264",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 6.693718
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "1b05fa5d010228c975d26da90b3a935197c8a8f029fb7df3eb61aadbb969c55b",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 12.0,
+        "original_target_duration_sec": 12.0,
+        "requested_duration_sec": 12,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Seamless airship engine hum with cloud-sea wind, steady low drone with occasional creak, no voices or music",
+        "actual_prompt_or_text": "Seamless airship engine hum with cloud-sea wind, steady low drone with occasional creak, no voices or music",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Seamless airship engine hum with cloud-sea wind, steady low drone with occasional creak, no voices or music",
+          "duration": 12,
+          "seed": 5440,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "40f1f489592462be69c5d20f9961a29a849e5c1401c7e595702442be2ba475ad",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "f07833325e2ff22e67dfc28243ed4c21c4676941c8286121c9564a0e943c37ba",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:07:27.699443+00:00",
+        "completed_at": "2026-11-04T15:07:35.741611+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": "0.08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 8.042168
+      }
+    ]
   }
 }

outputs/G043_airship_kitchen/assets/audio/G043_sfx_011/audio__sfx_eleven_v2.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:84c4cd54cbbac9ec5da9d91f8975e6c9ec0e4ba5623374469a0fd2b30a91eea3
+size 1920078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_011/audio__sfx_stable_audio_3_large.wav

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:36738ee0301c29f83764924063ea819f57f6640cb0c370b5b622ed7fc7fc1d9f
+size 1920078

outputs/G043_airship_kitchen/assets/audio/G043_sfx_011/meta.json

@@ -294,5 +294,114 @@
       }
     },
     "screening_file": "/home/yyy/bench/audio_production/20261017_verified/autonomous_loops/G043_airship_kitchen/screening.json"
+  },
+  "model_comparison": {
+    "schema_version": "audio_model_comparison_v1",
+    "delivery_id": "20261105_md_models",
+    "scope": "Generation-only supplemental model comparison. Native duration and prompt deviations explicitly declared; not formal scoring or game playback verification.",
+    "original_source_task_unchanged": true,
+    "primary_asset_fields_preserved": true,
+    "source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+    "upload_contract_verified_commit": "e24e43311596b4b78ce92873ec445cce8550a358",
+    "duration_policy": "User-authorized clamp: WaveSpeed ElevenSFX0.5-22seconds; StableAudio1-380seconds. Native actual duration retained. Speech has no fixed total-duration postprocessing.",
+    "prompt_policy": "38 tasks use a transparent acoustic paraphrase in both model groups after original-prompt moderation refusals. Other source input conditions preserved. Original text remains in source_task and each result.",
+    "paired_variants": {
+      "default": {
+        "actual_prompt_or_text_equal": true,
+        "requested_duration_equal": true
+      }
+    },
+    "quality_boundary": "API completion and file integrity do not imply human listening approval or exact original-task duration compliance.",
+    "results": [
+      {
+        "method_key": "sfx_eleven_v2",
+        "model_id": "elevenlabs/sound-effects-v2",
+        "provider": "WaveSpeed",
+        "variant": "default",
+        "file": "audio__sfx_eleven_v2.wav",
+        "sha256": "84c4cd54cbbac9ec5da9d91f8975e6c9ec0e4ba5623374469a0fd2b30a91eea3",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 10.0,
+        "original_target_duration_sec": 10.0,
+        "requested_duration_sec": 10,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Seamless busy kitchen ambience: faint sizzle, bubbling pots and distant clatter layers, no distinct voices",
+        "actual_prompt_or_text": "Seamless busy kitchen ambience: faint sizzle, bubbling pots and distant clatter layers, no distinct voices",
+        "generation_request": {
+          "prompt": "Seamless busy kitchen ambience: faint sizzle, bubbling pots and distant clatter layers, no distinct voices",
+          "duration": 10,
+          "loop": true,
+          "prompt_influence": 0.3
+        },
+        "generation_id": "9ea46ced34964954af9b75af76ee3471",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "d3f626db4fa381c401f9f4cd171319852a127d04a0cc77571826d2a1fd706b4a",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:19:58.127256+00:00",
+        "completed_at": "2026-11-04T15:20:05.040828+00:00",
+        "cost": {
+          "new_fee_usd": "0.022",
+          "fee_basis": "Settled provider prediction ledger as displayed; rounding differs from precise quote/account debit",
+          "fee_status": "SETTLED_LEDGER_DISPLAYED_PRECISION",
+          "precise_quote_or_fixed_rate_usd": "0.0220",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 6.913572
+      },
+      {
+        "method_key": "sfx_stable_audio_3_large",
+        "model_id": "stable-audio-3",
+        "provider": "Stability",
+        "variant": "default",
+        "file": "audio__sfx_stable_audio_3_large.wav",
+        "sha256": "36738ee0301c29f83764924063ea819f57f6640cb0c370b5b622ed7fc7fc1d9f",
+        "sample_rate": 48000,
+        "channels": 2,
+        "duration_sec": 10.0,
+        "original_target_duration_sec": 10.0,
+        "requested_duration_sec": 10,
+        "duration_request_adjusted_to_endpoint_range": false,
+        "semantic_prompt_reworded": false,
+        "actual_prompt_differs_from_source": false,
+        "original_task_prompt_or_text": "Seamless busy kitchen ambience: faint sizzle, bubbling pots and distant clatter layers, no distinct voices",
+        "actual_prompt_or_text": "Seamless busy kitchen ambience: faint sizzle, bubbling pots and distant clatter layers, no distinct voices",
+        "generation_request": {
+          "model": "stable-audio-3",
+          "prompt": "Seamless busy kitchen ambience: faint sizzle, bubbling pots and distant clatter layers, no distinct voices",
+          "duration": 10,
+          "seed": 5441,
+          "output_format": "wav",
+          "steps": 8,
+          "cfg_scale": 1
+        },
+        "generation_id": "17772e62369e7067f1453d9ba62168ff2063865fd28f28299bf4943c47066aa3",
+        "source_result_status": "GENERATED",
+        "recovery_condition": null,
+        "human_review": "NOT_HUMAN_REVIEWED_USER_DELEGATED_GENERATION",
+        "source_waveform_preserved": true,
+        "processing": "Whole-file decode and sample-rate conversion only, or exact-byte reuse. No cropping, padding, gain normalization, time stretch, loop concatenation or seam repair.",
+        "raw_audio_sha256": "c43ce6d0fa7786adc55e48ae75160be3fc923a952811110ad7568c433cbdad3e",
+        "original_source_commit": "fcada1549f7db691018aba699e8c7c6d3058b044",
+        "submitted_at": "2026-11-04T15:07:29.808514+00:00",
+        "completed_at": "2026-11-04T15:07:38.372542+00:00",
+        "cost": {
+          "new_fee_usd": "0.08",
+          "fee_basis": "Fixed8credits/success; batch closing account debit independently verified",
+          "fee_status": "SETTLED_FIXED_RATE_ACCOUNT_RECONCILED",
+          "precise_quote_or_fixed_rate_usd": "0.08",
+          "historical_reuse": false,
+          "comparison_budget_boundary": null
+        },
+        "observed_latency_sec_including_network": 8.564028
+      }
+    ]
   }
 }