Jeff-1
A LoRA adapter that turns Qwen3-4B-Instruct-2507 into a typed-decision model without shipping full weights.
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What this is
An adapter rather than a full checkpoint. You need Qwen/Qwen3-4B-Instruct-2507 alongside it, and the licence of that base applies to you as well as this repository's own.
A public number is a shortlist, not a decision
The only benchmark that settles which model you ship is one built from your own historical decisions. We freeze that test set, run the candidates against it, and hand back the threshold your error budget supports.