MCPGen - Workflow Extension: leaderboard
Metric: End-to-end success (%; share of the 100 extension tasks whose generated workflow and runner execute successfully in the project environment, given the first half of the gold workflow as an immutable prefix; single-turn generation, temperature 0, 100 executable MCP projects from 16 domains). Source: arxiv.org. Saturation forecast: Around August 2027. 11 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 3 Pro (Preview) | 57 |
| 2 | O3 | 46 |
| 3 | Qwen 3 Next 80B A3B Instruct | 44 |
| 4 | Gemini 3 Flash (Preview) | 36 |
| 5 | MiniMax-M2.1 | 17 |
| 6 | Claude Sonnet 4.5 | 15 |
| 7 | Qwen 3 Coder 30B A3B Instruct | 15 |
| 8 | GPT-5.2 | 13 |
| 9 | GPT-5.1 | 13 |
| 10 | Claude Haiku 4.5 (20251001) | 10 |
| 11 | GPT-4o Mini | 6 |
Interactive version: theaggregate.ai/benchmark?slug=mcpgen-workflow-extension · How It Works · Data refreshed daily, snapshot 2026-09-26.