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ModelRetiredProprietaryfamily · Claude

Claude Opus 4

Anthropic

Updated 29 min ago · first seen 11 Sept 2026

model_01M293VBDH9G5XPNG0415Q4MR9

Specification

Family
Claude

Source:Claude Developer Platform docsT1observed 29 min agohigh

Status
retired

Source:Claude Developer Platform docsT1observed 29 min agohigh

Openness
proprietary

Source:Claude Developer Platform docsT1observed 29 min agohigh

Deprecation date
14 Apr 2026

Source:Claude Developer Platform docsT1observed 29 min agohigh

Retirement date
15 Jun 2026

Source:Claude Developer Platform docsT1observed 29 min agohigh

Retirement tentative
No

Source:Claude Developer Platform docsT1observed 29 min agohigh

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

7

Source tiers

T17

Freshest observation

29 min ago

Conflicts

None