Model thread

claude-sonnet-5-5

model/anthropic-api:claude-sonnet-5-5

Events

1

First event in the archive

29 September 2026 05:44 UTC observed

Last activity

29 September 2026 05:44 UTC observed

1. The anthropic-deprecations table records the tentative retirement date for "claude-sonnet-5-5" as "Not sooner than September 28, 2027".

   retirement_floor 29 September 2026 05:44 UTC observed · anthropic-deprecations · 70a7fce · raw artifact at this commit

   modelclaude-sonnet-5-5 labanthropic

   parsed floor date	2027-09-28