MSI-Bench - English: leaderboard
The English split of MSI-Bench (Xiong et al., 2026), which tests voice assistants on synthesized multi-party audio scenes that end in a request to the assistant, covering multi-speaker memory, instruction following and reasoning in 576 natively written cases. All-pass rate in percent: a case passes only when all its atomic rubrics, judged by DeepSeek V4 Pro, and any required tool call are correct; higher is better.
Metric: All-pass rate (%; all 576 English test cases over six multi-speaker memory, instruction-following and reasoning patterns; a case passes when all its atomic rubrics pass, judged by DeepSeek V4 Pro on the dialogue transcript, with a deterministic tool-call validator as one more rubric for cases that need a tool call; one prediction per model and case from the audio of a multi-party, multi-turn scene ending in an assistant-directed handoff; open-weight models served with JSON-schema constrained decoding). Source: arxiv.org. Saturation forecast: Around February 2027. 15 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Gemini 3.1 Pro (Preview) | 66.8 | #91 |
| 2 | Gemini 3.5 Flash | 63.2 | #98 |
| 3 | Gemma 4 12B (Non-reasoning) | 22.6 | #927 (Gemma 4 12B) |
| 4 | Gemma 4 12B (Reasoning) | 19.8 | #927 (Gemma 4 12B) |
| 5 | Qwen2.5-Omni-7B | 16.1 | #1797 |
| 6 | Phi-4 Multimodal Instruct | 5.4 | #3914 |
No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.
Interactive version: theaggregate.ai/benchmark?slug=msi-bench-english · How It Works · Data refreshed daily, snapshot 2026-11-12.