BenchmarkList ECI: leaderboard
Metric: Capability Index (ECI). Source: benchmarklist.com. 452 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Claude Mythos 5 | 161.31 |
| 2 | Claude Fable 5.1 | 160.48 |
| 3 | Claude Opus 5 | 158.73 |
| 4 | GPT-6 | 158.29 |
| 5 | Claude Fable 5 | 154.02 |
| 6 | Muse Spark 1.3 | 153.15 |
| 7 | GPT-5.6 Sol | 152.9 |
| 8 | Gemini 3.8 Flash | 152.3 |
| 9 | GPT-5.4 Pro (xHigh) | 151.89 |
| 10 | Grok 4.6 | 151.28 |
| 11 | GPT-5.6 Terra | 151.05 |
| 12 | Hy4 preview | 150.9 |
| 13 | GPT-5.5 Pro | 150.58 |
| 14 | Kimi K3 | 150.26 |
| 15 | GPT-5.5 | 150 |
Interactive version: theaggregate.ai/benchmark?slug=benchmarklist-eci · How It Works · Data refreshed daily, snapshot 2026-09-05.