Is gpt-4o-mini-tts-2025-03-20 deprecated?

Q: Is gpt-4o-mini-tts-2025-03-20 deprecated?

Yes — deprecated. Retired 2026-07-23 — 10 days ago. Requests to this identifier are expected to fail. The provider names gpt-4o-mini-tts-2025-12-15 as the replacement.

DEPRECATED

Retired 2026-07-23 — 10 days ago. Requests to this identifier are expected to fail. The provider names gpt-4o-mini-tts-2025-12-15 as the replacement.

state=dead sunset=2026-07-23 days_remaining=-10 severity=critical sources=docs,litellm evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-4o-mini-tts-2025-12-15 corroborated=yes divergent_fields=none checked=2026-08-02 01:41Z

openai/gpt-4o-mini-tts-2025-03-20

Vendor: openai. 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
docs	gpt-4o-mini-tts-2025-03-20	—	—	—	—	2026-07-23
litellm	gpt-4o-mini-tts-2025-03-20	—	—	$2.5	$10	—

Change history

Severity	Change	What	Detected
critical	deprecated	gpt-4o-mini-tts-2025-03-20: retires 2026-07-23 (9 days ago)	2026-08-01
low	added	new model gpt-4o-mini-tts-2025-03-20	2026-08-01