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README.md
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# Community Quantization Requests
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This space is for requesting oQe builds. These quants utilize multi-stage calibration and Hessian-based error compensation to maintain logic stability, specifically tuned for Apple Silicon performance.
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### How to Request
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Open a new Discussion for requests. To ensure a valid build, please include:
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1. Model Link: URL to the official Hugging Face repository. Note that I only process builds starting from original BF16 or FP16 source weights.
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2. Quantization Format: Specify if you need BF16 or FP16 quants.
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* FP16 is generally recommended for M1/M2 series to utilize AMX units for faster prefill.
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* BF16 is recommended for M3/M4 series with native support.
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3. Preferred Tiers: Specify the target bitrate (e.g., oQ5e, oQ4e) based on your available Unified Memory.
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### Guidelines
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* Hardware: Builds are processed on a 192GB M2 Ultra. Models up to 70B parameters (standard dense) are supported. Anything significantly larger (100B+ or large MoE architectures) will exceed memory limits when loading source weights for calibration.
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* Selection Criteria: Priority is given to base models and official instruct tunes. Experimental merges or low-epoch fine-tunes are generally excluded unless there is significant community interest.
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* The Process: Every oQe build undergoes a 600-sample calibration pass. These are not one-pass streaming quants.
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### Technical Spec
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All fulfilled requests are processed using the oMLX Enhanced Quantization process:
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* Sensitivity Mapping: Calibration pass measures precision requirements per layer to prevent output drift.
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* Hessian-Based Tuning: GPTQ-Hessian error compensation is applied during weight rounding.
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* Precision Anchoring: Native BF16 for routing gates and FP16 for attention heads to maximize Apple Silicon AMX throughput.
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* Logic Floor: The lm_head and critical early blocks are locked at 8-bit to ensure core reasoning stability.
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