Is claude-opus-4 deprecated?

Q: Is claude-opus-4 deprecated?

Yes — deprecated. Retired 2026-05-14 — 125 days ago. Requests to this identifier are expected to fail.

DEPRECATED

Retired 2026-05-14 — 125 days ago. Requests to this identifier are expected to fail.

state=dead sunset=2026-05-14 days_remaining=-125 severity=critical sources=litellm,openrouter evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=yes divergent_fields=none checked=2026-09-16 03:02Z

anthropic/claude-opus-4

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
litellm	vertex_ai/claude-opus-4	200,000	32,000	$15	$75	2026-05-14
openrouter	anthropic/claude-opus-4	200,000	32,000	$15	$75	—

Change history

Severity	Change	What	Detected
info	deprecated	vertex_ai/claude-opus-4: deprecation announced for 2026-05-14 (date already passed)	2026-08-21
info	deprecated	vertex_ai/claude-opus-4@20250514: deprecation announced for 2026-05-14 (date already passed)	2026-08-21
info	deprecated	vertex_ai/claude-opus-4: retires 2026-05-14 (99 days ago)	2026-08-21
info	deprecated	vertex_ai/claude-opus-4@20250514: retires 2026-05-14 (99 days ago)	2026-08-21