Molmo2-VideoCount: leaderboard

Video counting benchmark from the Molmo2 paper (Allen Institute for AI and University of Washington, 2026): 533 human-annotated, double-checked validation queries ask how many objects, actions or animals appear in a video clip, with counts up to 60. The score is exact-count accuracy in percent; higher is better.

Metric: Exact-count accuracy (%; 533 validation queries). Source: arxiv.org. Saturation forecast: Around 2031. 21 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3 Pro37.1#135
2Gemini 2.5 Pro35.8#262
3GPT-535.8#163
4Molmo2-8B35.5#1488
5Gemini 2.5 Flash31.9#452
6GPT-5 Mini29.8#349
7Claude Sonnet 4.527.2#244
8GLM-4.1V-9B (Thinking)26.6#1061 (GLM-4.1V-9B)

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

Interactive version: theaggregate.ai/benchmark?slug=molmo2-videocount · How It Works · Data refreshed daily, snapshot 2026-11-12.