CAPITU: leaderboard

Metric: Final score (%): the mean over prompts of (2 x the share of the prompt's constraints satisfied + a GPT-4o-mini coherence score) / 3, on the 200 single-turn CAPITU prompts (Brazilian Portuguese writing tasks about eight canonical Brazilian novels, each with 1 to 4 verifiable constraints drawn from 59 instruction types such as exact word counts, Portuguese suffix patterns, acrostics and forbidden words), rule-checked on the response as generated, temperature 0; higher is better. Source: arxiv.org. Saturation forecast: Estimated already saturated. 18 models tracked.

Top models

#ModelScoreOverall rank
1GPT-599.1#91
2GPT-5 Mini98.9#176
3GPT-5.2 (High)98.8#105 (GPT-5.2)
4Gemini 3 Pro (Preview)97.1#64
5GPT-5.2 (Non-reasoning)97.1#105 (GPT-5.2)
6Gemini 3 Flash (Preview)96.7#78
7Claude Sonnet 4.594.3#138
8Qwen 3 8B (Thinking)92.7#667 (Qwen 3 8B)
9Qwen 3 32B (Thinking)92.6#424 (Qwen 3 32B)
10Qwen 3 235B A22B (Thinking)92.6#304 (Qwen 3 235B A22B)
11Qwen 3 235B A22B (Non-reasoning)91.7#304 (Qwen 3 235B A22B)
12Qwen 3 14B (Reasoning)90.8#524 (Qwen 3 14B)
13Claude Haiku 4.589.2#271

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

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