OFFICIAL ANTHROPIC NOTICES

Anthropic model deprecation schedule

Anthropic has 1 model with a published shutdown or removal date; the next is claude-sonnet-4-5-20250929 on Nov 30, 2026. 2 more are deprecated without a firm removal date. In the last 12 months 6 models were retired or shut down, most recently claude-opus-4-1-20250805 on Aug 5, 2026.

Last updated Oct 23, 2026 · Anthropic dashboard and alerts

Upcoming shutdowns 1

Upcoming Anthropic shutdown dates
Date	Model	Status	Replacement	Source
Nov 30, 2026	`claude-sonnet-4-5-20250929`	Shuts down38 days	`claude-sonnet-5-5`	Notice ↗

Deprecated without a removal date 2

Anthropic models deprecated without a firm removal date
Model	Status	Replacement	Source
`claude-opus-4-20250514`	Deprecated · no removal date	None published	Notice ↗
`claude-sonnet-4-20250514`	Deprecated · no removal date	None published	Notice ↗

Retired or shut down in the last 12 months 6

Anthropic models retired in the last 12 months
Date	Model	Status	Replacement	Source
Aug 5, 2026	`claude-opus-4-1-20250805`	Retired	None published	Notice ↗
Apr 30, 2026	`context-1m-2025-08-07`	Retired	None published	Notice ↗
Apr 20, 2026	`claude-3-haiku-20240307`	Retired	`Claude Haiku 4.5`	Notice ↗
Feb 19, 2026	`claude-3-7-sonnet-20250219`	Retired	None published	Notice ↗
Feb 19, 2026	`claude-3-5-haiku-20241022`	Retired	None published	Notice ↗
Jan 5, 2026	`claude-3-opus-20240229`	Shut down	`claude-opus-4-8`	Notice ↗

Official Anthropic sources

Each provider and hosting route sets its own dates. A model offered on several platforms can stop on different days; ModelClock reads each notice from the provider's own documentation.