Is gemini-2.5-flash-lite-preview-09-2025 deprecated?

Q: Is gemini-2.5-flash-lite-preview-09-2025 deprecated?

Yes — deprecated. Retired 2026-03-31 — 169 days ago. Requests to this identifier are expected to fail.

DEPRECATED

Retired 2026-03-31 — 169 days ago. Requests to this identifier are expected to fail.

state=dead sunset=2026-03-31 days_remaining=-169 severity=critical 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

google/gemini-2.5-flash-lite-preview-09-2025

Vendor: google. 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	gemini/gemini-2.5-flash-lite-preview-09-2025	1,048,576	65,535	$0.1	$0.4	2026-03-31

Change history

Severity	Change	What	Detected
info	deprecated	gemini/gemini-2.5-flash-lite-preview-09-2025: deprecation announced for 2026-03-31 (date already passed)	2026-08-12
info	deprecated	gemini/gemini-2.5-flash-lite-preview-09-2025: retires 2026-03-31 (134 days ago)	2026-08-12