Is gpt-3.5-turbo-instruct deprecated?

Q: Is gpt-3.5-turbo-instruct deprecated?

Not yet, but retirement is scheduled. Sunset scheduled for 2026-09-28, published in the provider's own documentation. The provider names gpt-5.4-mini or gpt-5-mini as the replacement. The identifier still resolves today.

RETIRING IN 57 DAYS

Sunset scheduled for 2026-09-28, published in the provider's own documentation. The provider names gpt-5.4-mini or gpt-5-mini as the replacement. The identifier still resolves today. Sources disagree on: context_tokens.

state=dying sunset=2026-09-28 days_remaining=57 severity=high sources=docs,litellm,openrouter evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-5.4-mini or gpt-5-mini corroborated=yes divergent_fields=context_tokens checked=2026-08-02 01:41Z

openai/gpt-3.5-turbo-instruct

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-instruct	—	—	—	—	2026-09-28
litellm	gpt-3.5-turbo-instruct	8,192	4,096	$1.5	$2	—
openrouter	openai/gpt-3.5-turbo-instruct	4,095	4,096	$1.5	$2	—

Change history

Severity	Change	What	Detected
high	deprecated	gpt-3.5-turbo-instruct: retires 2026-09-28 (in 58 days)	2026-08-01
low	added	new model gpt-3.5-turbo-instruct	2026-08-01