Is gpt-5.1-2025-11-13 deprecated?

Q: Is gpt-5.1-2025-11-13 deprecated?

Not yet, but retirement is scheduled. Sunset scheduled for 2027-05-15, reported by a third-party catalog. The identifier still resolves today.

RETIRING IN 241 DAYS

Sunset scheduled for 2027-05-15, reported by a third-party catalog. The identifier still resolves today.

state=dying sunset=2027-05-15 days_remaining=241 severity=high sources=litellm evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=single-source divergent_fields=none checked=2026-09-16 03:02Z

openai/gpt-5.1-2025-11-13

Vendor: openai. Tracked by 1 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	azure/gpt-5.1-2025-11-13	272,000	128,000	$1.25	$10	2027-05-15

Change history

Severity	Change	What	Detected
high	modified	gpt-5.1-2025-11-13: capabilities lost minimal_reasoning_effort	2026-09-11
medium	deprecated	azure/gpt-5.1-2025-11-13: deprecation announced for 2027-05-15 — in 276 days	2026-08-12
medium	deprecated	azure/gpt-5.1-2025-11-13: retires 2027-05-15 (in 276 days)	2026-08-12
info	modified	[source artifact — 6 providers changed identically on the same day] azure/gpt-5.1-2025-11-13: capabilities lost service_tier	2026-06-27
info	modified	[source artifact — 6 providers changed identically on the same day] gpt-5.1-2025-11-13: capabilities lost service_tier	2026-06-27