FCMBench-Video (English) - Temporal Grounding: leaderboard

Metric: Temporal Grounding: mean temporal IoU (%) between predicted and ground-truth time spans of the target documents, on FCMBench-Video's en-US subset (795 composed videos of 8 English document types, 5,362 instances); zero-shot with structured outputs; each model's native video serving path (2 FPS sampling for most open models, 0.5 FPS for Ovis2.5, raw video upload for the API models); higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 9 models tracked.

Top models

#ModelScore
1Gemini 3 Pro (Preview)80.39
2Qwen 3.5 27B75.74
3Qwen 3 VL 32B Instruct71.57
4Qwen 3 VL 8B Instruct67.13
5Qwen3 Omni 30B A3B Instruct42.18
6InternVL3-8B16.12

Interactive version: theaggregate.ai/benchmark?slug=fcmbench-video-english-temporal-grounding · How It Works · Data refreshed daily, snapshot 2026-10-07.