Is claude-opus-4-5-20251101 deprecated?

Q: Is claude-opus-4-5-20251101 deprecated?

No — still supported. Served by the provider's own endpoint (anthropic). No retirement date announced.

NOT DEPRECATED

Served by the provider's own endpoint (anthropic). No retirement date announced.

state=alive sunset=none days_remaining=n/a severity=low sources=anthropic,litellm evidence_tier=endpoint confirmed_by_endpoint=anthropic documented_by_provider=false replacement=none corroborated=yes divergent_fields=none checked=2026-08-02 01:41Z

anthropic/claude-opus-4-5-20251101

Vendor: anthropic. Tracked by 2 of 5 sources.

What each source reports

**endpoint** = the provider's own machine-readable API, the strongest evidence. **provider docs** = the provider's own documentation, read by a model — first-party content, inferred reading. Unlabelled rows are third-party catalogs. Where sources disagree both values are shown rather than silently reconciled.
Source	ID	Context	Max out	In $/Mtok	Out $/Mtok	Sunset
anthropic native	claude-opus-4-5-20251101	200,000	64,000	—	—	—
litellm	anthropic.claude-opus-4-5-20251101-v1:0	200,000	64,000	$5	$25	—

Change history

Severity	Change	What	Detected
low	modified	claude-opus-4-5-20251101: capabilities gained native_structured_output	2026-07-14
low	modified	anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained parallel_tool_use_config	2026-07-02
low	modified	eu.anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained parallel_tool_use_config	2026-07-02
low	modified	global.anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained parallel_tool_use_config	2026-07-02
low	modified	us.anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained parallel_tool_use_config	2026-07-02
info	modified	[source artifact — 5 providers changed identically on the same day] claude-opus-4-5-20251101: capabilities lost minimal_reasoning_effort	2026-05-29
info	modified	[source artifact — 5 providers changed identically on the same day] anthropic.claude-opus-4-5-20251101-v1:0: capabilities lost minimal_reasoning_effort	2026-05-29
info	modified	[source artifact — 5 providers changed identically on the same day] eu.anthropic.claude-opus-4-5-20251101-v1:0: capabilities lost minimal_reasoning_effort	2026-05-29
info	modified	[source artifact — 5 providers changed identically on the same day] global.anthropic.claude-opus-4-5-20251101-v1:0: capabilities lost minimal_reasoning_effort	2026-05-29
info	modified	[source artifact — 5 providers changed identically on the same day] us.anthropic.claude-opus-4-5-20251101-v1:0: capabilities lost minimal_reasoning_effort	2026-05-29
low	modified	claude-opus-4-5-20251101: capabilities gained output_config	2026-05-28
low	modified	anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained output_config	2026-05-28
low	modified	eu.anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained output_config	2026-05-28
low	modified	global.anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained output_config	2026-05-28
low	modified	us.anthropic.claude-opus-4-5-20251101-v1:0: capabilities gained output_config	2026-05-28