clef-oQ2.5e

This model was quantized using oQ (oMLX v0.7.1) mixed-precision quantization with Improved oQe Quantization (jundot/omlx#4385).

A mixed-precision MLX checkpoint of Cloudflare/clef, a 27B decision model post-trained from Qwen/Qwen3.8-27B 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 Qwen3.8-27B 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 3.653 bits/weight for the complete checkpoint.

Quantization and Bit Distribution

oQ2.5e 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 2-bit, group 64 21.534B 78.348% 6.267 GiB 2.50
Affine 5-bit, group 64 2.817B 10.249% 1.804 GiB 5.50
Affine 8-bit, group 64 2.543B 9.252% 2.516 GiB 8.50
BF16 0.591B 2.152% 1.102 GiB 16.00
Total 27.485B 100% 11.689 GiB 3.653

Storage Breakdown

Component Logical weights Storage
Language backbone 26.896B 11.373 GB / 10.592 GiB
Vision encoder 0.461B 0.921 GB / 0.858 GiB
Joint schema head 0.128B 0.256 GB / 0.239 GiB
Total 27.485B 12.550 GB / 11.689 GiB

License

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

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