MoHallBench - Visual Similarity Hallucination: leaderboard

Tests whether video LLMs affirm an action on a visually near-identical clip from the same video that does not contain it, using bias-aware paired yes/no queries; from MoHallBench (2026). Q-PairAcc in percent, higher is better.

Metric: Q-PairAcc (%; share of adversarial pairs in which the model answers both the positive and the negative (reversed) yes/no query correctly; 32 uniformly sampled frames, temperature 0; visually near-identical negative clips without the action). Source: arxiv.org. Saturation forecast: Around February 2027. 10 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3 VL 8B Instruct36.2#981
2InternVL3-8B27.9#1688
3Molmo2-8B24.4#1483
4Qwen 2.5 VL 7B Instruct22.3#1833
5Qwen 2 VL 7B Instruct17.4#2553

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

Interactive version: theaggregate.ai/benchmark?slug=mohallbench-visual-similarity-hallucination · How It Works · Data refreshed daily, snapshot 2026-11-13.