Is gpt-4o-realtime-preview-2024-12-17 deprecated?

Q: Is gpt-4o-realtime-preview-2024-12-17 deprecated?

Yes — deprecated. Retired 2026-05-07 — 132 days ago. Requests to this identifier are expected to fail. The provider names gpt-realtime-1.5 as the replacement.

DEPRECATED

Retired 2026-05-07 — 132 days ago. Requests to this identifier are expected to fail. The provider names gpt-realtime-1.5 as the replacement.

state=dead sunset=2026-05-07 days_remaining=-132 severity=critical sources=docs,litellm evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-realtime-1.5 corroborated=yes divergent_fields=none checked=2026-09-16 03:02Z

openai/gpt-4o-realtime-preview-2024-12-17

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-realtime-preview-2024-12-17	—	—	—	—	2026-05-07
litellm	gpt-4o-realtime-preview-2024-12-17	128,000	4,096	$5	$20	2026-05-07

Change history

Severity	Change	What	Detected
info	deprecated	gpt-4o-realtime-preview-2024-12-17: deprecation announced for 2026-05-07 (date already passed)	2026-09-01
medium	deprecated	gpt-4o-realtime-preview-2024-12-17: deprecation announced for 2027-01-20 — in 161 days	2026-08-12
medium	deprecated	gpt-4o-realtime-preview-2024-12-17: retires 2027-01-20 (in 161 days)	2026-08-12
info	deprecated	gpt-4o-realtime-preview-2024-12-17: deprecation announced for 2025-09-15 (date already passed)	2026-08-05
info	deprecated	gpt-4o-realtime-preview-2024-12-17: retires 2026-05-07 (86 days ago)	2026-08-01
low	added	new model gpt-4o-realtime-preview-2024-12-17	2026-08-01