MCP-Persona - Execution Accuracy: leaderboard
MCP-Persona (ICML 2026) gives tool-calling agents personalized tasks, such as messaging a colleague found through a shared group, on 12 MCP servers simulated from real tool traces, with up to 20 rounds per task. The board is execution accuracy: human-specified execution steps checked by executors against the simulated application state and final answers, in percent; higher is better.
Metric: Execution accuracy (%): executor-verified correctness of the human-specified execution steps (final answers and tool-call parameters, CRUD state changes checked in the sandbox), averaged over tasks; 173 human-verified personal-application tasks on 12 simulated MCP servers (Lark, Slack, WeCom, Notion, Obsidian, Rednote, Reddit, Instagram, email and search tools), up to 20 tool-calling rounds, GPT-4o judge; higher is better. Source: arxiv.org. Saturation forecast: Around 2029. 13 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Claude Sonnet 4.5 | 41.5 | #250 |
| 2 | GPT-5 | 41.45 | #167 |
| 3 | Claude Opus 4.1 | 36.77 | #272 |
| 4 | O4 Mini | 34.73 | #353 |
| 5 | O3 | 30.27 | #228 |
| 6 | DeepSeek V3 (0324) | 27.52 | #709 |
| 7 | Grok 4 | 22.49 | #307 |
| 8 | Qwen 3 235B A22B 2507 Instruct | 21.83 | #619 |
| 9 | Qwen3 Coder | 20.14 | #586 |
| 10 | GPT-4o (2024-11-20) | 20.02 | #866 |
| 11 | Gemini 2.5 Pro | 13.38 | #266 |
| 12 | Gemini 3 Pro | 5.78 | #137 |
No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.
Interactive version: theaggregate.ai/benchmark?slug=mcp-persona-execution-accuracy · How It Works · Data refreshed daily, snapshot 2026-11-13.