Is gpt-3.5-turbo deprecated?

Q: Is gpt-3.5-turbo deprecated?

Not yet, but retirement is scheduled. Sunset scheduled for 2026-10-23, published in the provider's own documentation. The provider names gpt-5.6-terra as the replacement. The identifier still resolves today.

RETIRING IN 37 DAYS

Sunset scheduled for 2026-10-23, published in the provider's own documentation. The provider names gpt-5.6-terra as the replacement. The identifier still resolves today.

state=dying sunset=2026-10-23 days_remaining=37 severity=high sources=docs,litellm,openrouter evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-5.6-terra corroborated=yes divergent_fields=none checked=2026-09-16 03:02Z

openai/gpt-3.5-turbo

Vendor: openai. Tracked by 3 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
docs	gpt-3.5-turbo	—	—	—	—	2026-10-23
litellm	gpt-3.5-turbo	16,385	4,096	$0.5	$1.5	2026-10-23
openrouter	openai/gpt-3.5-turbo	16,385	4,096	$0.5	$1.5	—

Change history

Severity	Change	What	Detected
info	repriced	openrouter/openai/gpt-3.5-turbo: input_price_per_mtok $1.50/Mtok to $0.50/Mtok	2026-09-06
info	repriced	openrouter/openai/gpt-3.5-turbo: output_price_per_mtok $2.00/Mtok to $1.50/Mtok	2026-09-06
high	deprecated	gpt-3.5-turbo: deprecation announced for 2026-10-23 — in 72 days	2026-08-12
info	deprecated	gpt-3.5-turbo: deprecation announced for 2026-04-22 (date already passed)	2026-08-05
high	deprecated	gpt-3.5-turbo: retires 2026-10-23 (in 83 days)	2026-08-01
low	added	new model gpt-3.5-turbo	2026-08-01