firelex/jeff

Fine-tunes of Qwen3.5 and Gemma 4 for zero-shot classification

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Fine-tunes of Qwen3.5 and Gemma 4 for zero-shot classification: small, fast decision models you slot into your code, with the same request format as Jev. You describe a situation and list the options in plain words; Jeff returns a calibrated probability for each option from a single forward pass. No generated text, no parsing: about 22 ms per decision on an RTX PRO 6000 and 28 ms on an Apple M4 Max (MLX). Zero-shot means the options can be anything: support queues, user intents, moderation labels, voice commands, game moves. Your categories don't need to appear in the training data; you describe them, and Jeff picks. What it is, and what it isn't. These are very small models. They make extremely fast, well-calibrated judgement calls between options, and they slot easily into your local code. On benchmarks they approach, and sometimes beat, Jev; but at this size their reasoning won't…

firelex/jeff on GitHub A short preview, not the full document.

Read the full README ↗ · Preview checked 2026-09-29T12:57:09.519Z

Inside the original README — Document outline
  1. Jeff
  2. Quick start
  3. Benchmarks
  4. Games: a zero-shot test
  5. Speed and size
  6. Using it well
  7. Train your own
  8. Caveats
  9. History
  10. Licence

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What this repository does

Fine-tunes of Qwen3.5 and Gemma 4 for zero-shot classification

Repository facts

Owner
firelex
Primary language
Python
Stars
828
Forks
27
Open issues + pull requests
3
License
MIT
Archived
No
Default branch
main
Created
2026-09-28T16:18:39.000Z
Last push
2026-09-29T05:33:18.000Z

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