MusTBENCH - Temporal Source Grounding: leaderboard
Metric: Temporal Source Grounding (TSG, 400 questions): the model gives the time at which a named instrument or the vocals first start or last stop; score is the mean of onset and offset Hit@3s, the share of predicted timestamps within 3 seconds of the ground truth (%, 0-100), on the MusTBench test set (full-length MTG-Jamendo and Slakh2100 tracks, music-expert-validated questions), zero-shot with the full track and a task instruction, temperature 0, unparseable timestamps and intervals counted wrong; higher is better. Source: arxiv.org. Saturation forecast: Around January 2027. 12 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 2.5 Flash | 65.8 |
| 2 | Gemini 2.5 Pro | 57.3 |
| 3 | Gemini 3 Pro | 52.3 |
| 4 | Gemini 3 Flash | 48.8 |
| 5 | Qwen2.5-Omni-7B | 21.3 |
| 6 | Phi-4 Multimodal Instruct | 7.3 |
Interactive version: theaggregate.ai/benchmark?slug=mustbench-temporal-source-grounding · How It Works · Data refreshed daily, snapshot 2026-10-07.