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Train Jev

A training recipe for JEV-style System 1 decision models on Qwen bases: LoRA plus a 24-slot decision head distilled from Jev v1.13's output distribution, serving calibrated per-option probabilities through a TypeSafe-compatible endpoint.
Stars
10
Language
Python
License
APACHE-2.0
Reading time
2 min
Published by
Community
Author
shibing624
Last verified
Oct 2026

Highlights

  • Open-source reproduction of the JEV (TypeSafe Jev v1.13) System 1 recipe on Qwen3.5 / Qwen3.8 foundations.
  • Trains LoRA plus a 24-slot decision head, distilling Jev v1.13's full output distribution with KL.
  • Model returns per-option probabilities in one forward pass instead of generating text; probabilities are calibrated per question type.
  • Serves a TypeSafe System One API-compatible interface (POST /v1/systemone); existing Jev callers only change the address.
  • 4B and 27B LoRA weights are published on Hugging Face; the README claims the 27B approaches official TypeSafe performance.

Quickstart

bash
POST /v1/systemone
# question types: noul (yes/no), choice, score

Watch out

README and GitHub metadata reviewed 2026-10-17; the README is in Chinese with an English edition. The excerpt truncates mid-sentence in the feature list, so training data provenance, hyperparameters, costs and the 27B parity claim's details are not evidenced here.

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