clef-flash-oQ3e

Updated 2026-10-29: Re-quantized with the improved oQe quantization in oMLX 0.7.3. Please re-download if you have an earlier copy.

This model was quantized using oQ (oMLX v0.7.3) mixed-precision quantization with improved oQe (jundot/omlx#4930).

A mixed-precision MLX checkpoint of Cloudflare/clef-flash, a 9B decision model post-trained from Qwen/Qwen3.5-9B that turns a state and a schema of typed questions into decisions, returning a probability for every allowed option of every question in a single forward pass. It includes the Qwen3.5-9B language backbone, the vision encoder and the joint schema head.

The joint schema head (joint_head.safetensors, joint_head_config.json) is copied unchanged from the source. oMLX serves this checkpoint through POST /v1/systemone.

The effective average is 3.868 bits/weight for the language backbone and 4.603 bits/weight for the complete checkpoint.

Quantization and Bit Distribution

oQ3e allocates bits by measured layer sensitivity, then rounds each group with an importance matrix (128 samples x 512 tokens) and a weighted least-squares refit of its scale and bias.

Storage format Logical weights Share of total Tensor storage Effective bits/weight
Affine 3-bit, group 64 6.604B 69.285% 2.691 GiB 3.50
Affine 4-bit, group 64 1.483B 15.556% 0.777 GiB 4.50
Affine 5-bit, group 64 0.811B 8.507% 0.519 GiB 5.50
Affine 6-bit, group 64 0.050B 0.528% 0.038 GiB 6.50
Affine 8-bit, group 64 0.005B 0.052% 0.005 GiB 8.50
BF16 0.579B 6.073% 1.078 GiB 16.00
Total 9.532B 100% 5.108 GiB 4.603

Storage Breakdown

Component Logical weights Storage
Language backbone 8.954B 4.329 GB / 4.032 GiB
Vision encoder 0.456B 0.912 GB / 0.849 GiB
Joint schema head 0.122B 0.244 GB / 0.227 GiB
Total 9.532B 5.485 GB / 5.108 GiB

License

Apache-2.0, following the source model. See LICENSE.

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