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Open Medical Jev

Two frozen open models answer yes/no per exam option; their agreement drives an auto-release gate and a conformal candidate set.

Serviceresearch

Overview

Open Medical Jev aims for Jev-class judgment on medical licensing exam questions through computation rather than training. Two untouched open models, Qwen3.5-27B and Qwen3.5-35B-A3B via GGUF, each answer a yes/no judgment per answer option. A small fit-free router turns their agreement into a combined confidence (discounted when they disagree), applies Chow's rule as an auto-release gate so confident items are answered and the rest go to human review, and builds a split-conformal candidate set with a guaranteed error rate.

The README reports results within about 2 points of hosted Jev on three 600-item national licensing exams, with no fine-tuning, distillation or corpus. Three compute modes are offered: fast at about 0.076 s per item, and general and high cascades that release 84% and 66% of items at 93% and 97% precision while cutting compute by about 63% and 49%. Because nothing is trained, swapping in a newer model only needs refitting two constants. Figures are author-reported.

What the decision model decides

TypeQuestionAnswers
Yes / noIs this answer option correct for the exam question?yes · no
Yes / noIs combined confidence high enough to auto-release?release · review

How it works

  1. Each frozen reader answers yes/no per option.
  2. Combine agreement into a confidence score.
  3. Auto-release above the gate; escalate the rest to human review.
  4. Return a conformal candidate set at the chosen error rate.

Strengths

  • No training; model-agnostic.
  • Statistical guarantee via conformal prediction.
  • Cascades reduce compute substantially.

Caveats

  • Author-reported results.
  • Requires running two large quantised models.
  • Medical use needs human oversight.

At a glance

Type
Service
Status
research
Language
Python
Runtime
llama.cpp (GGUF), service
Has code
yes
Has tests
yes

Use cases and integrations

How curated lists describe it

  • Medical evaluation: two frozen local readers answer one Noul-style yes/no probability per exam option, a fit-free router auto-releases items above the combined-confidence gate and escalates the rest, and a split-conformal candidate set bounds the error - landing within 2 points of hosted Jev on three 600-item national licensing exams with no fine-tuning, no distillation and no corpus.

    yibie/awesome-jev
  • Two frozen off-the-shelf models answer a yes/no judgment per option, and their agreement becomes a confidence, an auto-release gate and a guaranteed candidate set. Nothing is trained. Its figures are measured against Jev 1.13.0 on national medical exams and are author-reported. Chinese and English.

    MrJev/awesome-jev

Frequently asked questions

Is anything trained?

No, it uses two frozen open models plus a small router.

How does it compare to Jev?

Within about 2 points on three national medical exams, per the README.

What happens to low-confidence items?

They are escalated to human review rather than auto-released.

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