# Is Claude Opus 4.5 20251101 SOTA?

**No.** Best recorded rank is #26 in Abstraction (ARC).

As of Oct 14, 2026, Claude Opus 4.5 20251101 from Anthropic. Best recorded rank is #26 in Abstraction (ARC). Last listed at #26 in Abstraction (ARC) on 2025-11-24. That board does not award a crown.

As of Oct 14, 2026. Methodology v1.0. Computed automatically.

- Reasoning: INSUFFICIENT_DATA — #55 on GPQA Diamond; missing Humanity's Last Exam and LMArena Text (style-controlled, hard prompts)
- Science: RANKED #55 — Last listed at #55 in Science on 2025-11-24. That board does not award a crown.
- Factuality: INSUFFICIENT_DATA — #36 on SimpleQA Verified; missing LMArena Text factuality
- Abstraction (ARC): RANKED #26 — Last listed at #26 in Abstraction (ARC) on 2025-11-24. That board does not award a crown.

## Science

https://isitsota.com/c/science