CCTU (Thinking): leaderboard

Metric: Perfect solve rate (%): the share of cases in which the model solves every subquery without ever violating a constraint, on the 200 CCTU test cases (FTRL tool-use tasks rewritten with on average seven constraints from 12 categories over resources, behavior, toolsets and responses; locally executable tools), an executable validator checking every step and returning violation feedback for revision, thinking mode enabled, default API settings otherwise, mean of 3 runs; higher is better. Source: arxiv.org. Saturation forecast: Around 2029. 9 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.2 (Thinking)18.17#105 (GPT-5.2)
2GPT-5.1 (Thinking)16.5#131 (GPT-5.1)
3Claude Opus 4.6 (Thinking)14.83#60 (Claude Opus 4.6)
4Seed 2.0 Pro (Thinking)14.83#111 (Seed 2.0 Pro)
5Qwen 3.5 Plus (Thinking)10.67#123 (Qwen 3.5 Plus)
6Gemini 3 Pro10.5#77
7DeepSeek V3.2 (Thinking)9#198 (DeepSeek V3.2)
8O38.17#121
9Kimi K2.5 (Thinking)7.67#139 (Kimi K2.5)

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=cctu-thinking · How It Works · Data refreshed daily, snapshot 2026-10-11.