MCP-Persona - Email: 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 checkpoint accuracy in percent on single-server email tasks; higher is better.
Metric: Checkpoint accuracy (%): mean LLM-judged score (0, 0.5 or 1) of the sub-task checkpoints in a task, averaged over tasks, single-server email 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 February 2027. 13 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | O4 Mini | 53.83 | #353 |
| 2 | GPT-5 | 47.17 | #167 |
| 3 | Claude Sonnet 4.5 | 43.63 | #250 |
| 4 | O3 | 41.08 | #228 |
| 5 | Gemini 3 Pro | 36.92 | #137 |
| 6 | DeepSeek V3 (0324) | 30.79 | #709 |
| 7 | Gemini 2.5 Pro | 20.92 | #266 |
| 8 | Qwen 3 235B A22B 2507 Instruct | 13.71 | #619 |
| 9 | GPT-4o (2024-11-20) | 12.57 | #866 |
| 10 | Claude Opus 4.1 | 9.71 | #272 |
| 11 | Qwen3 Coder | 8.29 | #586 |
| 12 | Grok 4 | 5.71 | #307 |
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-email · How It Works · Data refreshed daily, snapshot 2026-11-13.