MSI-Bench - Mandarin Constraint Prioritization: leaderboard

The constraint prioritization pattern 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, Mandarin split: a hard requirement from one speaker conflicts with a tradeable preference from another. All-pass rate in percent over 96 cases, where 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 (%; the 96 constraint-prioritization cases, where a hard requirement stated by one speaker conflicts with another's tradeable preference, Mandarin split; 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

#ModelScoreOverall rank
1Gemini 3.5 Flash58.3#98
2Gemini 3.1 Pro (Preview)51#91
3Qwen2.5-Omni-7B13.5#1797
4Phi-4 Multimodal Instruct1#3914
5Gemma 4 12B (Reasoning)0#927 (Gemma 4 12B)
6Gemma 4 12B (Non-reasoning)0#927 (Gemma 4 12B)

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-mandarin-constraint-prioritization · How It Works · Data refreshed daily, snapshot 2026-11-12.