CoCoBench - Mutual Exclusion: leaderboard
Metric: Task success rate (%; mutual-exclusion instances, sharing a tool or resource without contention; 897 oracle-validated executable household multi-agent task instances with two to four agents, centralized planner with image observations, task-specific step budgets). Source: arxiv.org. Saturation forecast: Around December 2026. 11 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5.6 Sol | 96.5 |
| 2 | Claude Opus 4.8 | 93.9 |
| 3 | Kimi K2.6 | 93.5 |
| 4 | Qwen 3.6 Plus | 88.3 |
| 5 | Claude Haiku 4.5 | 75.7 |
| 6 | Qwen 3.5 9B | 17 |
| 7 | GPT-5.4 Mini | 10.9 |
| 8 | Qwen 3 VL 8B Instruct | 1.3 |
Interactive version: theaggregate.ai/benchmark?slug=cocobench-mutual-exclusion · How It Works · Data refreshed daily, snapshot 2026-09-26.