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ModelActiveProprietaryfamily · Claude

Claude Opus 5

Anthropicplatform.claude.com/docs/en/models/opus-5/overvi

For complex agentic coding and enterprise work

quality78

Updated 1 h ago · first seen 11 Sept 2026

model_01M293V7EQDY9HVA5KVN8PB80A

Context
1M tokens
T1 · 2 h ago
Released
24 Jul 2026
T1 · 2 h ago
Knowledge cutoff
May 2026
T1 · 2 h ago

As of

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

Claim history · File input

1 claims · 1 propertiesShow all properties

File inputfile_input1

Claim history for File input
ValueValid from → toStatusSourceConfidenceExtractor
YescurrentcurrentOpenRouter 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 →