Benchmark Almanac

MMEB

Not in model cards

Multimodal embedding models are scored on classification, visual question answering, multimodal retrieval and visual grounding, with 16 evaluation datasets in and out of distribution.

Introduced with the VLM2Vec model, ICLR 2025. 36 datasets in total, 20 for training and 16 for evaluation. Repo has 701 stars.

Made by University of Waterloo (TIGER-Lab) + Salesforce Research Released Oct 2024 General visual questions All tasks public
Level
Everyday Most adults, without training
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Short answer A number, word or short string matched to a key.

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We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark.

Versions

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  • MMMU In use 11.5K college-level multimodal questions across 30 subjects. Multiple-choice and open accuracy. GPT-5.1 85.4%
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  • CharXiv In use Chart understanding on real arXiv figures. Reasoning questions require synthesizing information from complex charts. Claude Fable 5 93.5%
  • MATH-Vision (MathVision) In use 3,040 competition math problems with visual context. Answer accuracy. Qwen 3.8 Max 97.7%
  • ChartQA In use Models answer human-written and generated questions about chart images that need visual and arithmetic reasoning. Scored by relaxed accuracy with a 5 percent numeric tolerance. Command A Vision 90.9%
  • DocVQA In use Models answer 50,000 questions about 12,000 scanned document images by reading their text and layout. Scoring is ANLS, a string similarity to reference answers. Seed1.5-VL 96.9%