AI Model Capability Comparison
| No. | Model | |
|---|---|---|
| 1 |  Claude Opus 5.5 | 168.83 |
| 2 |  GPT-6 Astra | 168.81 |
| 3 | GPT-6.1 Sol | 168.37 |
| 4 | Claude Fable 5.1 | 166.49 |
| 5 |  Gemini 4 Argon | 166.45 |
| 6 | Claude Sonnet 5.5 | 166.18 |
| 7 | Claude Opus 5 | 163.94 |
| 8 | GPT-6 Sol | 163.73 |
| 9 | GPT-6 Luna | — |
| 10 | Claude Haiku 5.5 | — |
| 11 | Claude Mythos Preview | — |
Epoch AI benchmarks
Source: Epoch AI, CC BY 4.0 ↗ · Updated 2026-10-15
PandaNpc Updated Oct 21, 2026, 06:01 UTC
Source: Epoch AI, CC BY 4.0 · Vals.ai · Artificial Analysis (artificialanalysis.ai)
Column guide
- No.
- Display order only. Sorting changes this number; it is not a published capability rank.
- Model
- The evaluated model name and its provider icon. A dash in a score column means no published score is available here, not a zero.
- Epoch Capabilities Index (ECI)
- ECI combines multiple benchmarks into a general capability scale, accounting for their relative difficulty. Higher scores indicate stronger performance on that scale; they are not percentages or IQ scores. A model can still differ substantially across individual tasks. Evaluation methodology ↗
Read scores within the same benchmark, source and version. Higher values indicate stronger performance on the reported metric, but different columns do not share a common scale.