ConfidenceBench - Calibration Error: leaderboard
Metric: Expected Calibration Error (0-1). Source: arxiv.org. 15 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | GPT-5 | 0.07 |
| 2 | Claude Opus 4.6 | 0.07 |
| 3 | GPT-5 (High) | 0.08 |
| 4 | GPT-5 (Low) | 0.08 |
| 5 | GPT-5 Nano | 0.08 |
| 6 | Gemini 3.1 Pro (Preview) | 0.09 |
| 7 | GPT-5 Mini | 0.09 |
| 8 | Claude Sonnet 4.6 | 0.1 |
| 9 | Claude Sonnet 4.5 | 0.11 |
| 10 | Claude Opus 4.1 | 0.12 |
| 11 | Claude Opus 4.5 | 0.14 |
| 12 | Claude Sonnet 4 | 0.17 |
| 13 | Gemini 2.5 Flash | 0.19 |
| 14 | Gemini 2.5 Pro | 0.2 |
| 15 | Gemini 3.1 Flash Lite | 0.34 |
Interactive version: theaggregate.ai/benchmark?slug=confidencebench-calibration-error · How It Works · Data refreshed daily, snapshot 2026-09-21.