00:00
2026-10-01
llmstatus.ai
large-language-models
Claude Sonnet 4.5 deprecated, retires 2026-09-29 → Claude Sonnet 5.5
Anthropic has deprecated Claude Sonnet 4.5 (claude-sonnet-4-5-20250929), with retirement set for 2026-09-29, according to the provider's model deprecation announcement. The model, which supports text …