fedi-index history
How the scores of models move from month to month on the fixed scale of the methodology version.
The same in a table
| Model | 2026-10 |
|---|---|
| Claude Opus 5 | 1,493 S |
| Claude Opus 5.5 | 1,504 S |
| Gemini 3.8 Flash | 1,472 S |
| Claude Fable 5 | 1,484 S |
| GPT-5.5 Pro | 1,471 A |
| Claude Fable 5.1 | 1,498 S |
| Claude Opus 4.6 | 1,476 S |
| Gemini 4 Argon (High) | 1,490 A |
Monthly snapshots are frozen on the 1st; the last point is the live month. Published snapshots: 1.