Model and API retirements

64 within 30 days · 558 firm dates ahead

claude-opus-5 retirement date and replacement

Claude API · Model · not sooner than Jul 24, 2027

Vendor page

Dates

Checked Nov 9, 2026 on Anthropic's page
Not sooner thanJul 24, 2027 (not sooner than)The earliest date the vendor gives for a current model; the real date is announced later.
ReplacementNone named
Model pageclaude-opus-5 on Models
What it isclaude-opus-5 stops answering on Claude API no sooner than Jul 24, 2027.
Sourceplatform.claude.com/docs/en/about-claude/model-deprecations
Anthropic
Claude APIModel

claude-sonnet-5

Stops answering on Claude API no sooner than Jun 30, 2027.

not sooner thanJun 30, 2027
Claude APIModel

claude-fable-5-1

Stops answering on Claude API no sooner than Sep 1, 2027.

not sooner thanSep 1, 2027
Claude APIModel

claude-mythos-5-1

Stops answering on Claude API no sooner than Sep 1, 2027.

not sooner thanSep 1, 2027