Claude deprecation schedule leak: Opus 4.5 active until late 2026, Opus 4.1 retired
repligate · x · 2026-11-02
A screenshot shared by repligate shows Anthropic's model deprecation schedule: claude-opus-4-6 is Active, retired no sooner than Feb 3, 2027; claude-opus-4-5-20251101 is Active until Nov 24, 2026; claude-opus-4-1-20250805 was marked Retired as of June 5, 2026. The quoter laments the rapid model churn and forced migrations for teams pinned to old versions.
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