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MM-JevBench

10,000-sample multimodal benchmark for decision models that return full probability distributions over declared candidates.

Benchmarkresearch

Overview

MM-JevBench is a multimodal benchmark for candidate-based decision models. Each sample asks a model to read images, text, audio, video or GUI interaction history and return a probability distribution over a declared candidate set that sums to one. Release MM-JevBench-10k-v1.0 has 10,000 canonical samples (2,000 dev, 8,000 test) in 8,079 leakage-controlled groups from five sources: CMMMU, MULTI, OmniGUI, MMBench-Dev-CN and CCBench.

Every sample is a closed-set choice with 2-7 candidates for visual tasks or 13 fixed action types for GUI next-action decisions; upstream candidates are kept without synthetic distractors and gold labels are one-hot distributions. It evaluates both accuracy and calibration, and the subtitle mentions Jev coherence. It is aimed at teams building multimodal decision models and wanting a common test.

What the decision model decides

TypeQuestionAnswers
ChoiceWhich candidate answers this multimodal question?—
ChoiceGUI next-action type—

How it works

  1. Load dev and test splits.
  2. Feed each sample's evidence and candidates to the model.
  3. Collect a probability distribution per sample.
  4. Score accuracy and calibration by source and domain.

Strengths

  • Large, leakage-controlled splits.
  • Covers GUI action decisions as well as visual QA.
  • Measures calibration, not only accuracy.

Caveats

  • Mostly Chinese-language sources.
  • All tasks are closed-set choice; no score or yes/no beyond true/false items.

At a glance

Type
Benchmark
Status
research
Language
Python
Has code
yes

Use cases and integrations

How curated lists describe it

Frequently asked questions

What does MM-JevBench test?

Whether multimodal decision models pick the right candidate and give well-calibrated probabilities.

How big is it?

10,000 canonical samples: 2,000 dev and 8,000 test.

Which sources does it use?

CMMMU, MULTI, OmniGUI, MMBench-Dev-CN and CCBench.

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