{
  "schema": 2,
  "repo": "tphakala/Perch-v2",
  "family": "perch",
  "updated": "2026-07-24",
  "family_meta": {
    "display_name": "Google Perch v2",
    "description": "Google Perch v2 multi-taxa classifier with approximately 14,795 species including birds, insects, amphibians, and mammals (scientific names only)",
    "author": "Google Research",
    "license": "Apache-2.0",
    "commercial_use": true,
    "upstream_url": "https://www.kaggle.com/models/google/bird-vocalization-classifier/tensorFlow2/perch_v2",
    "species_count": 14795
  },
  "requirements_note": "requirements.min_ram_mb is a conservative, high-biased RAM floor: measured peak RSS + 15% where a benchmark exists, else a size-derived estimate biased high (a too-low floor risks OOM; a too-high floor only over-excludes on the smallest devices). Measured values will replace the estimates over time.",
  "naming": "legacy names, frozen; new files follow <family>-<upstream>[-<region>]-<variant>-b<build>.<ext>",
  "selection": {
    "x86-64/onnxruntime": "perch-v2-fp32-no-dft.onnx",
    "x86-64/openvino-cpu": "perch-v2-fp32-no-dft.onnx",
    "aarch64-a76/openvino": "perch-v2-fp32-no-dft.onnx",
    "aarch64/onnxruntime": "perch-v2-int8-arm.onnx",
    "cuda": "perch-v2-fp32-no-dft.onnx"
  },
  "notes": "perch-v2-fp32.onnx / perch_v2.onnx keep the in-graph DFT and therefore do NOT run on OpenVINO; use the no-dft build there. The int8-arm build was quantized from the with-DFT graph, so it is ONNX Runtime only (verified). The hyphenated and underscored names are duplicate content kept for backward compatibility.",
  "models": [
    {
      "path": "perch-v2-fp32.onnx",
      "family": "perch",
      "upstream_version": "2",
      "upstream_source": "https://www.kaggle.com/models/google/bird-vocalization-classifier/",
      "build": 1,
      "legacy": true,
      "variant": "fp32",
      "precision": "fp32",
      "region": null,
      "classes": 14795,
      "labels": "labels.txt",
      "input": {
        "sample_rate": 32000,
        "window_seconds": 5,
        "samples": 160000,
        "shape": [
          "batch",
          160000
        ],
        "dtype": "float32"
      },
      "backends": {
        "onnxruntime-cpu": {
          "supported": true,
          "recommended": true
        },
        "openvino-cpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "openvino-gpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "cuda": {
          "supported": true,
          "recommended": true
        },
        "tensorrt": {
          "supported": true,
          "recommended": false
        }
      },
      "backend_support_verified": false,
      "sha256": "bf0c8467a924cb074663970ca4a0ab1e143602121930209657d0dff5d5cefa1f",
      "size_bytes": 409148616,
      "superseded_by": null,
      "requirements": {
        "min_ram_mb": 700
      }
    },
    {
      "path": "perch_v2.onnx",
      "family": "perch",
      "upstream_version": "2",
      "upstream_source": "https://www.kaggle.com/models/google/bird-vocalization-classifier/",
      "build": 1,
      "legacy": true,
      "variant": "fp32",
      "precision": "fp32",
      "region": null,
      "classes": 14795,
      "labels": "labels.txt",
      "input": {
        "sample_rate": 32000,
        "window_seconds": 5,
        "samples": 160000,
        "shape": [
          "batch",
          160000
        ],
        "dtype": "float32"
      },
      "backends": {
        "onnxruntime-cpu": {
          "supported": true,
          "recommended": true
        },
        "openvino-cpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "openvino-gpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "cuda": {
          "supported": true,
          "recommended": true
        },
        "tensorrt": {
          "supported": true,
          "recommended": false
        }
      },
      "backend_support_verified": false,
      "sha256": "bf0c8467a924cb074663970ca4a0ab1e143602121930209657d0dff5d5cefa1f",
      "size_bytes": 409148616,
      "superseded_by": null,
      "alias_of": "perch-v2-fp32.onnx",
      "requirements": {
        "min_ram_mb": 700
      }
    },
    {
      "path": "perch-v2-fp32-no-dft.onnx",
      "family": "perch",
      "upstream_version": "2",
      "upstream_source": "https://www.kaggle.com/models/google/bird-vocalization-classifier/",
      "build": 1,
      "legacy": true,
      "variant": "no-dft-fp32",
      "precision": "fp32",
      "region": null,
      "classes": 14795,
      "labels": "labels.txt",
      "input": {
        "sample_rate": 32000,
        "window_seconds": 5,
        "samples": 160000,
        "shape": [
          "batch",
          160000
        ],
        "dtype": "float32"
      },
      "backends": {
        "onnxruntime-cpu": {
          "supported": true,
          "recommended": false
        },
        "openvino-cpu": {
          "supported": true,
          "recommended": true
        },
        "openvino-gpu": {
          "supported": true,
          "recommended": true
        },
        "cuda": {
          "supported": true,
          "recommended": true
        },
        "tensorrt": {
          "supported": true,
          "recommended": false
        }
      },
      "backend_support_verified": true,
      "sha256": "4dcf71c18a147198545944bb5149697e89e3ad2e16637fa8f0edf6d13035a017",
      "size_bytes": 413350933,
      "superseded_by": null,
      "requirements": {
        "min_ram_mb": 750
      }
    },
    {
      "path": "perch_v2_no_dft.onnx",
      "family": "perch",
      "upstream_version": "2",
      "upstream_source": "https://www.kaggle.com/models/google/bird-vocalization-classifier/",
      "build": 1,
      "legacy": true,
      "variant": "no-dft-fp32",
      "precision": "fp32",
      "region": null,
      "classes": 14795,
      "labels": "labels.txt",
      "input": {
        "sample_rate": 32000,
        "window_seconds": 5,
        "samples": 160000,
        "shape": [
          "batch",
          160000
        ],
        "dtype": "float32"
      },
      "backends": {
        "onnxruntime-cpu": {
          "supported": true,
          "recommended": false
        },
        "openvino-cpu": {
          "supported": true,
          "recommended": true
        },
        "openvino-gpu": {
          "supported": true,
          "recommended": true
        },
        "cuda": {
          "supported": true,
          "recommended": true
        },
        "tensorrt": {
          "supported": true,
          "recommended": false
        }
      },
      "backend_support_verified": true,
      "sha256": "4dcf71c18a147198545944bb5149697e89e3ad2e16637fa8f0edf6d13035a017",
      "size_bytes": 413350933,
      "superseded_by": null,
      "alias_of": "perch-v2-fp32-no-dft.onnx",
      "requirements": {
        "min_ram_mb": 750
      }
    },
    {
      "path": "perch-v2-int8-arm.onnx",
      "family": "perch",
      "upstream_version": "2",
      "upstream_source": "https://www.kaggle.com/models/google/bird-vocalization-classifier/",
      "build": 1,
      "legacy": true,
      "variant": "int8-arm",
      "precision": "int8-arm",
      "region": null,
      "classes": 14795,
      "labels": "labels.txt",
      "input": {
        "sample_rate": 32000,
        "window_seconds": 5,
        "samples": 160000,
        "shape": [
          "batch",
          160000
        ],
        "dtype": "float32"
      },
      "backends": {
        "onnxruntime-cpu": {
          "supported": true,
          "recommended": true
        },
        "openvino-cpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "openvino-gpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "cuda": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "tensorrt": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        }
      },
      "backend_support_verified": true,
      "sha256": "ff32ca8c57954a86e6023a915d018dc7573cfc5567dd7314899d1c947cc6d5c5",
      "size_bytes": 130856164,
      "superseded_by": null,
      "requirements": {
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      }
    },
    {
      "path": "perch_v2_int8_arm.onnx",
      "family": "perch",
      "upstream_version": "2",
      "upstream_source": "https://www.kaggle.com/models/google/bird-vocalization-classifier/",
      "build": 1,
      "legacy": true,
      "variant": "int8-arm",
      "precision": "int8-arm",
      "region": null,
      "classes": 14795,
      "labels": "labels.txt",
      "input": {
        "sample_rate": 32000,
        "window_seconds": 5,
        "samples": 160000,
        "shape": [
          "batch",
          160000
        ],
        "dtype": "float32"
      },
      "backends": {
        "onnxruntime-cpu": {
          "supported": true,
          "recommended": true
        },
        "openvino-cpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "openvino-gpu": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "cuda": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        },
        "tensorrt": {
          "supported": false,
          "recommended": false,
          "note": "contains an in-graph DFT op that OpenVINO cannot translate; verified to fail compilation on OpenVINO CPU"
        }
      },
      "backend_support_verified": true,
      "sha256": "ff32ca8c57954a86e6023a915d018dc7573cfc5567dd7314899d1c947cc6d5c5",
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      "superseded_by": null,
      "alias_of": "perch-v2-int8-arm.onnx",
      "requirements": {
        "min_ram_mb": 350
      }
    }
  ]
}