| Paper | Code | Score | ModelName | ReleaseDate |
|---|---|---|---|---|
| Introducing Claude Sonnet 5.5 | ✓ Link | 65.4 | Claude Sonnet 5.5 (max effort) | 2026-09-28 |
| Introducing Claude Haiku 5.5 | 61.6 | Claude Haiku 5.5 (max effort) | 2026-10-07 | |
| Introducing Claude Opus 5.5 | ✓ Link | 60.6 | Claude Opus 5.5 (max effort, Opus 5 refusal fallback) | 2026-09-22 |
| Introducing Claude Fable 5.1 and Claude Mythos 5.1 | 60.0 | Claude Fable 5.1 (max effort, with fallbacks) | 2026-09-01 |