Skip to content
AI Atlas
ModelRetiredProprietaryfamily · Claude

Claude Opus 4

Anthropic

Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in...

quality67

Updated 41 min ago · first seen 11 Sept 2026

model_01M293VBDH9G5XPNG0415Q4MR9

Context
200K tokens
T2 · 41 min ago
Released
22 May 2025
T2 · 41 min ago
Knowledge cutoff
Jan 2025
T2 · 41 min ago

As of

Rewind the record: see this entity's attributes exactly as AI Atlas knew them on a given day.

Claim history · Modalities

1 claims · 1 propertiesShow all properties

Modalitiesmodalities1

Claim history for Modalities
ValueValid from → toStatusSourceConfidenceExtractor
image, textcurrentcurrentOpenRouter public model & pricing listingT2mediumdeterministic

Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →