VERIFIEDOct 142026
Is Claude Sonnet 4.5 20250929 8K state of the art?
No.Best recorded rank is #60 in Abstraction (ARC).
As of Oct 14, 2026, Claude Sonnet 4.5 20250929 8K from Anthropic. Best recorded rank is #60 in Abstraction (ARC). Last listed at #60 in Abstraction (ARC) on 2025-09-29. That board does not award a crown.
Why
The ruling, in plain English
Last listed at #60 in Abstraction (ARC) on 2025-09-29. That board does not award a crown.
Receipts
Evidence
| Source | Score | Date | Type | Receipt |
|---|---|---|---|---|
| ARC-AGI claude-sonnet-4-5-20250929_8K | 0.465 | 2025-09-29 | INDEP. | snap_e03cddec1fbb |
Reign history
Where it sits in the succession
No closed or open crown interval includes this model.
Honest about the gaps
Where it is not the crown
| Category | This model | Why |
|---|---|---|
| Abstraction (ARC) | Not SOTA · #60 | Last listed at #60 in Abstraction (ARC) on 2025-09-29. That board does not award a crown. |