Two Opus 4.1 model variants marked deprecated
DeprecationDeprecation
This is a deprecation — the affected surface still works, but the vendor has marked it for removal. Plan a migration before it goes away.
What changed
The claude-opus-4-1 and claude-opus-4-1-20250805 model identifiers are now marked as deprecated in the OpenAPI spec with an August 5, 2026 end-of-life date. Existing code using these models will continue to work, but clients should migrate to newer models before the deadline.