JustFit Qwen3.8-27B components

Published checkpoint-side components for the JustFit reproduction kit and paper.

This repository does not duplicate the target model. Download the pinned mlx-community/Qwen3.8-27B-mxfp4 target separately.

Files

Path	Bytes	SHA-256
`vision-bf16.safetensors`	921,492,862	`b27ad7963b3752b5cab9d225f9c0b033d0d59066e7ff357dac17d690a6ff7994`
`mtp/model.safetensors`	225,662,258	`9b1d99f402f98940e08891d04815271e3fa94d6bc762f042fd311d3aa0d8bd1d`
`mtp/config.json`	3,777	`e0d0d5dc68f59559940e1b2dafc40a34700b9ae7ff963de268225a54550af563`

vision-bf16.safetensors is the exact BF16 backing used by the production PhaseSwap vision adapter. Its 333 tensors were matched tensor-for-tensor to the pinned public MXFP4 checkpoint.
mtp/ is the standalone block-size-3 MXFP4 MTP drafter. Its weight file is byte-identical to the measured artifact.

Download

hf download billchen42/JustFit-Qwen3.8-27B-components \
  --revision 13e0462fa911a1bcbdccbaa759120500c0f90582 \
  --local-dir ./justfit-components

For the full launcher, capacity client, pinned target revision, limitations, and result definitions, use the linked reproduction kit rather than treating these files as a standalone model.

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Paper for billchen42/JustFit-Qwen3.8-27B-components

JustFit: 200K-Token LLM Serving on a 24 GiB Laptop with Just-in-Time State Management

Paper • 2609.17475 • Published 3 days ago