ExCyTIn-Bench: leaderboard
Metric: Total average reward over the 589 test questions (0-1, partial credit). Source: github.com. 28 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Opus 4.5 | 0.61 |
| 2 | GPT-5.1 (High) | 0.58 |
| 3 | GPT-5 (High) | 0.56 |
| 4 | GPT-5 (Medium) | 0.54 |
| 5 | GPT-5.1 (Medium) | 0.54 |
| 6 | Claude Sonnet 4.5 | 0.49 |
| 7 | O3 | 0.46 |
| 8 | GPT-5.1 (Low) | 0.45 |
| 9 | GPT-5 (Low) | 0.38 |
| 10 | GPT-5 Mini | 0.37 |
| 11 | O4 Mini | 0.37 |
| 12 | Grok 4 | 0.34 |
| 13 | GPT-4.1 | 0.34 |
| 14 | GPT-5.1 (Non-reasoning) | 0.32 |
| 15 | Gemini 2.5 Flash | 0.31 |
Interactive version: theaggregate.ai/benchmark?slug=excytin-bench · How It Works · Data refreshed daily, snapshot 2026-09-19.