coreai-fabric: qwen2.5-math-1.5b-instruct-int8 card + license + reports

LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2024 Alibaba Cloud
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

README.md

@@ -0,0 +1,147 @@
+---
+license: apache-2.0
+base_model: Qwen/Qwen2.5-Math-1.5B-Instruct
+base_model_relation: quantized
+pipeline_tag: text-generation
+library_name: coreai
+widget:
+- text: "Explain on-device AI in one sentence."
+- text: "Write a haiku about Apple Silicon."
+tags:
+- coreai
+- core-ai
+- coreai-fabric
+- aimodel
+- coreml
+- apple
+- apple-silicon
+- on-device
+- iphone
+- metal
+- text-generation
+- llm
+- int8
+---
+
+> **Canonical:** [`kevinqz/Qwen2.5-Math-1.5B-Instruct-CoreAI`](https://huggingface.co/kevinqz/Qwen2.5-Math-1.5B-Instruct-CoreAI) — source of truth. 
+
+# Qwen2.5-Math 1.5B Instruct (fabric, int8)
+
+**Apple Core AI chat model — runs fully on-device on Apple Silicon
+(iPhone / iPad / Mac, macOS/iOS 27+).**
+
+A quantized **stateful KV-cache chat** `.aimodel` — an Apple Core AI conversion of
+[Qwen/Qwen2.5-Math-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-Math-1.5B-Instruct), with an embedded
+tokenizer + chat template. Produced by
+[coreai-fabric](https://github.com/kevinqz/coreai-fabric/blob/main/recipes/qwen2.5-math-1.5b-instruct-int8.yaml) and indexed by
+[coreai-catalog](https://github.com/kevinqz/coreai-catalog).
+
+## Model facts
+
+| Field | Value |
+|---|---|
+| Parameters | — |
+| Architecture | transformer |
+| Capabilities | text-generation, reasoning |
+| Quantization / precision | int8 / float16 |
+| Context length | — |
+| On-disk size | 1.5 GB |
+| Asset kind | stateful KV-cache chat bundle; embedded tokenizer + chat template |
+| assetVersion | 2.0 |
+
+
+
+## Use it
+
+Install via the catalog, then run it with Apple's Foundation Models runtime:
+
+```bash
+pip install coreai-catalog && coreai-catalog install qwen2.5-math-1.5b-instruct-int8
+```
+
+```swift
+import CoreAILanguageModels
+import FoundationModels
+
+// modelURL = the installed macos/ bundle directory for this model
+let model = try await CoreAILanguageModel(resourcesAt: modelURL)
+let session = LanguageModelSession(model: model)
+let reply = try await session.respond(to: "Explain on-device AI in one sentence.")
+print(reply)
+```
+
+A complete, buildable example lives at
+[coreai-catalog/examples/llm-chat](https://github.com/kevinqz/coreai-catalog/tree/main/examples/llm-chat).
+
+## Requirements
+
+- **Deployment: macOS 27.0+ / iOS 27.0+, Xcode 27+.** The asset serializes with
+  `minimum_os v27`, so the on-device Swift runtime requires macOS/iOS 27+.
+- A Mac on **macOS 26 can convert and inspect** the asset but **cannot run** it
+  on-device (the Swift runtime needs the 27 SDK).
+- Apple Silicon.
+
+## Intended use & limitations
+
+- **Intended use:** general on-device chat / text generation. Inherits the base
+  model's capabilities, languages, and biases.
+- **Limitations:** int8 quantized — the high-fidelity tier, near-lossless vs. fp16. See the Evaluation section for the measured
+  greedy fidelity vs the fp16 reference.
+
+## Evaluation (parity)
+
+- **Gate A (structure): passed** — the bundle's layout + metadata were
+  validated on real hardware (Apple Silicon); the asset loads and generates.
+- **Gate B — greedy fidelity vs the fp16 reference: 100.0% margin-gated (95% CI 95.4–100.0%)** · 100.0% exact-argmax · 100.0% top-5, over 80 teacher-forced tokens, measured on-device (Apple M4 Max, macOS 26.6). Margin-gated forgives near-tie flips (where even the reference flips on rounding noise). This is *fidelity to the reference*, not a quality verdict. Reproduce with `coreai-fabric verify` + the parity runner (`parity-report.json`).
+  - Sample — prompt `The capital of France is` → asset: `a large city with a population of 1,`
+- **Runtime throughput (tok/s):** to be published once measured on the on-device
+  (macOS/iOS 27) Swift runtime. Not estimated — real numbers or none.
+
+## Provenance
+
+| Field | Value |
+|---|---|
+| Base model | [Qwen/Qwen2.5-Math-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-Math-1.5B-Instruct) @ `aafeb0fc6f22cbf0eaeed126eff8be45b0360a35` |
+| Converted by | `coreai.llm.export` (version not reported) |
+| Recipe | [qwen2.5-math-1.5b-instruct-int8](https://github.com/kevinqz/coreai-fabric/blob/main/recipes/qwen2.5-math-1.5b-instruct-int8.yaml) (recipe_source: fabric) |
+| Precision / quantization | float16 / int8 |
+| Conversion date | 2026-07-04 |
+
+Machine-readable, in this repo:
+[`parity-report.json`](./parity-report.json) (gate results) ·
+[`reproduce-manifest.json`](./reproduce-manifest.json) (exact tool + stack + pinned
+revision to reproduce this conversion) · [`LICENSE`](./LICENSE) (upstream terms).
+
+## License and attribution
+
+Weights © 2024 Alibaba Cloud, licensed **apache-2.0** — see the bundled `LICENSE`. This artifact is a **converted + quantized derivative** of the base
+model (the Apache-2.0 §4(b) change notice): weights were converted to Apple Core
+AI format and quantized to int8. The conversion itself is community work.
+
+## Links
+
+- **Base model:** [Qwen/Qwen2.5-Math-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-Math-1.5B-Instruct)
+- **Reproduce:** [recipe `qwen2.5-math-1.5b-instruct-int8`](https://github.com/kevinqz/coreai-fabric/blob/main/recipes/qwen2.5-math-1.5b-instruct-int8.yaml) · [runnable example](https://github.com/kevinqz/coreai-catalog/tree/main/examples/llm-chat)
+- **Index:** [coreai-catalog](https://github.com/kevinqz/coreai-catalog) — the neutral registry that ties upstream ↔ this asset ↔ mirror together
+
+
+## The on-device Core AI ecosystem
+
+This conversion is part of a broader open ecosystem for running models on Apple's
+on-device stack — useful references if you're building here:
+
+- [coreai-fabric](https://github.com/kevinqz/coreai-fabric) — the reproducible
+  recipe → `.aimodel` pipeline that produced this asset.
+- [coreai-catalog](https://github.com/kevinqz/coreai-catalog) — the index of Core
+  AI models across the community, with provenance and integration snippets.
+- [apple/coreai-models](https://github.com/apple/coreai-models) — Apple's official
+  exporters and runtimes.
+- [CoreAI Model Zoo](https://github.com/john-rocky/coreai-model-zoo) and the wider
+  [coreai-community](https://huggingface.co/coreai-community) — community
+  conversions across many model families.
+
+## Not affiliated with Apple
+
+Community conversion. Not produced, hosted, or endorsed by Apple. Apple and
+Core AI are trademarks of Apple Inc., used here only to describe the target
+runtime/format. This is an independent community conversion.

int8/parity-report.json

@@ -0,0 +1,69 @@
+{
+  "recipe_id": "qwen2.5-math-1.5b-instruct-int8",
+  "generated_at": "2026-07-04T06:22:17+00:00",
+  "bundle": "build/qwen2.5-math-1.5b-instruct-int8/qwen2.5-math-1.5b-instruct-int8.aimodel",
+  "conversion_manifest": "build/qwen2.5-math-1.5b-instruct-int8/conversion-manifest.json",
+  "gate_a": {
+    "status": "passed",
+    "checks": [
+      {
+        "name": "bundle_exists",
+        "status": "passed",
+        "detail": "build/qwen2.5-math-1.5b-instruct-int8/qwen2.5-math-1.5b-instruct-int8.aimodel"
+      },
+      {
+        "name": "bundle_files_present",
+        "status": "passed",
+        "detail": "3 expected file(s) present"
+      },
+      {
+        "name": "metadata_json_parses",
+        "status": "passed",
+        "detail": "metadata.json parses (3 top-level keys)"
+      },
+      {
+        "name": "metadata_matches_recipe",
+        "status": "skipped",
+        "detail": "no overlapping keys between recipe expectations and bundle metadata (nothing to compare \u2014 this is not a pass)"
+      }
+    ]
+  },
+  "gate_b": {
+    "metric": "greedy_parity",
+    "threshold": 0.9,
+    "tolerance": 0.05,
+    "value": 1.0,
+    "status": "passed",
+    "margin_gated_match_rate": 1.0,
+    "margin_gated_ci95": [
+      0.9542,
+      1.0
+    ],
+    "argmax_match_rate": 1.0,
+    "top5_agreement_rate": 1.0,
+    "matched": 80,
+    "compared": 80,
+    "near_ties_excluded": 3,
+    "greedy_token_exact": true,
+    "n_prompts": 8,
+    "decode_len": 10,
+    "reference_dtype": "float16",
+    "flip_margin_nats": 0.1,
+    "sample": {
+      "prompt": "The capital of France is",
+      "reference": " a large city with a population of 1,",
+      "asset_argmax": " a large city with a population of 1,"
+    },
+    "runner": "coreai-fabric-parity-runner/0.1.0",
+    "environment": {
+      "os": "macOS 26.6",
+      "chip": "Apple M4 Max",
+      "machine": "arm64",
+      "runtime_version": "1.0.0b2",
+      "coreai_torch": "0.4.1",
+      "torch": "2.9.0",
+      "transformers": "4.57.6"
+    }
+  },
+  "overall": "passed"
+}

int8/reproduce-manifest.json

@@ -0,0 +1,36 @@
+{
+  "recipe_id": "qwen2.5-math-1.5b-instruct-int8",
+  "tool": "coreai.llm.export",
+  "tool_version": null,
+  "converter_stack": {
+    "coreai-torch": "0.4.1",
+    "coreai-core": "1.0.0b2",
+    "torch": "2.9.0",
+    "transformers": "4.57.6"
+  },
+  "command": [
+    "coreai.llm.export",
+    "Qwen/Qwen2.5-Math-1.5B-Instruct",
+    "--experimental",
+    "--compute-precision",
+    "float16",
+    "--compression-config",
+    "./quant/int8_absmax_perblock32.yaml",
+    "--output-dir",
+    "./build",
+    "--output-name",
+    "qwen2.5-math-1.5b-instruct-int8",
+    "--overwrite",
+    "--platform",
+    "macOS"
+  ],
+  "input": {
+    "hf_repo": "Qwen/Qwen2.5-Math-1.5B-Instruct",
+    "revision": "aafeb0fc6f22cbf0eaeed126eff8be45b0360a35",
+    "revision_pinned_by_tool": false
+  },
+  "started_at": "2026-07-04T06:12:12+00:00",
+  "finished_at": "2026-07-04T06:15:01+00:00",
+  "output_bundle": "build/qwen2.5-math-1.5b-instruct-int8/qwen2.5-math-1.5b-instruct-int8.aimodel",
+  "asset_minimum_os": "27"
+}