MCPGen - Tool Creation (Collective Pass): leaderboard
Metric: Collective pass rate (%; share of projects whose integration tests pass with every generated tool substituted at once; single-turn generation, temperature 0, 100 executable MCP projects from 16 domains). Source: arxiv.org. Saturation forecast: Around 2034. 11 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Haiku 4.5 (20251001) | 45 |
| 2 | Claude Sonnet 4.5 | 41 |
| 3 | O3 | 39 |
| 4 | Qwen 3 Coder 30B A3B Instruct | 38 |
| 5 | GPT-5.1 | 37 |
| 6 | MiniMax-M2.1 | 37 |
| 7 | Qwen 3 Next 80B A3B Instruct | 36 |
| 8 | GPT-5.2 | 34 |
| 9 | Gemini 3 Pro (Preview) | 34 |
| 10 | GPT-4o Mini | 33 |
| 11 | Gemini 3 Flash (Preview) | 32 |
Interactive version: theaggregate.ai/benchmark?slug=mcpgen-tool-creation-collective-pass · How It Works · Data refreshed daily, snapshot 2026-09-26.