AnyGroundBench - Animal STVG: leaderboard

Spatio-temporal video grounding on the animal domain of AnyGroundBench (2026), Animal Kingdom and newly captured mouse-scratching videos: the model localizes the queried event in time and the target box in every frame, zero-shot. The score is vIoU@0.3, the percent of queries whose tube IoU is at least 0.3; higher is better.

Metric: vIoU@0.3 (%; share of queries whose spatio-temporal tube IoU is at least 0.3) on the 157 animal-domain test queries (Animal Kingdom and newly captured mouse-scratching videos), spatio-temporal video grounding (localize the queried event in time and the target box in every frame), zero-shot, default inference settings (Qwen3.5 with thinking disabled); higher is better. Source: arxiv.org. Saturation forecast: Around July 2027. 15 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.1 Pro (Preview)16.5#94
2Gemini 3 Flash14#164
3Gemini 2.5 Pro8.28#266
4Qwen 3.5 9B (Non-reasoning)4.45#803 (Qwen 3.5 9B)
5GPT-5.13.18#229
6Gemini 2.5 Flash2.54#453
7Qwen 3.5 4B (Non-reasoning)2.54#1175 (Qwen 3.5 4B)
8InternVL3-8B0.63#1688
9InternVL3-14B0.63#1182
10GPT-4o0#741

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

Interactive version: theaggregate.ai/benchmark?slug=anygroundbench-animal-stvg · How It Works · Data refreshed daily, snapshot 2026-11-13.