| --- |
| pretty_name: Embedding Quantization Reproducibility Bundle |
| license: apache-2.0 |
| tags: |
| - embeddings |
| - quantization |
| - mlx |
| - zerogpu |
| - reproducibility |
| --- |
| |
| # Embedding quantization reproducibility bundle |
|
|
| This dataset contains the frozen inputs, vector artifacts, metrics, calibration |
| evidence, and scripts behind the companion engineering post on MLX Q/oQ/oQe |
| embedding quantization and CUDA-native controls. |
|
|
| See [`RESULTS.md`](./RESULTS.md) for the compact result tables and evidence |
| boundaries. |
|
|
| The model weights are not duplicated here. `models.lock.json` pins all 30 public |
| model repositories to exact Hub commits and records their canonical upstream |
| BF16 revisions. Quantized artifacts branch directly from their family's BF16 |
| checkpoint; no lossy conversion was used as another quantization's source. |
|
|
| ## Verify the published evidence |
|
|
| ```bash |
| hf download TiGa-RCE/embedding-quant-repro-2026-07-28 \ |
| --repo-type dataset --local-dir embedding-quant-repro |
| cd embedding-quant-repro |
| uv sync |
| uv run python reproduce.py verify |
| uv run python reproduce.py mixed-index |
| ``` |
|
|
| `verify` checks the locked revisions, bundle checksums, all 30 saved MLX vector |
| artifacts, and the three-family mixed-index result. `mixed-index` regenerates the |
| 54 migration-direction measurements from the saved vectors without downloading |
| model weights. |
|
|
| ## Local MLX gate on Apple Silicon |
|
|
| The quick profile downloads the locked 0.6B BF16 and representative Q4/Q6/Q8 |
| artifacts, then reproduces their vector comparisons: |
|
|
| ```bash |
| uv sync --extra mlx |
| uv run python reproduce.py mlx --profile quick |
| ``` |
|
|
| The complete matrix is intentionally explicit because it downloads all 30 |
| checkpoints: |
|
|
| ```bash |
| uv run python reproduce.py mlx --profile full --family all |
| ``` |
|
|
| ## CUDA controls through ZeroGPU |
|
|
| After authenticating with Hugging Face, the client invokes the bounded BF16, |
| bitsandbytes INT8, and bitsandbytes NF4 controls: |
|
|
| ```bash |
| hf auth login |
| uv sync --extra zerogpu |
| uv run python reproduce.py cuda |
| ``` |
|
|
| These bitsandbytes results are controls, not MLX Q/oQ/oQe equivalents. ZeroGPU |
| quota and scheduling still apply. The default runs the three 0.6B controls. The |
| complete nine-run matrix is deliberately explicit because it can exceed a free |
| account's daily quota: |
|
|
| ```bash |
| uv run python reproduce.py cuda --family all --variant all |
| ``` |
|
|
| ## Evidence boundaries |
|
|
| - The frozen set has 24 query/document pairs. This is an engineering smoke test, |
| not MTEB or a universal retrieval-quality claim. |
| - Q4 remains in the bundle as an intentionally failed fidelity comparator. |
| - GTE-Qwen2 1.5B CUDA vectors are quarantined from MLX cross-runtime trends |
| because that family failed loading-path parity. |
| - `scripts/frozen-original/` preserves the exact experiment scripts, including |
| their historical local paths. Use `reproduce.py` for the portable interface. |
| - The bundle contains no credentials. |
|
|
