Is deep-research-max-preview-04-2026 deprecated?

Q: Is deep-research-max-preview-04-2026 deprecated?

Yes — deprecated. Retired 2026-04-01 — 168 days ago. Requests to this identifier are expected to fail.

DEPRECATED

Retired 2026-04-01 — 168 days ago. Requests to this identifier are expected to fail.

state=dead sunset=2026-04-01 days_remaining=-168 severity=critical sources=docs,gemini evidence_tier=endpoint confirmed_by_endpoint=gemini documented_by_provider=docs replacement=none corroborated=yes divergent_fields=none checked=2026-09-16 03:02Z

google/deep-research-max-preview-04-2026

Vendor: google. 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	deep-research-max-preview-04-2026	—	—	—	—	2026-04-01
gemini native	deep-research-max-preview-04-2026	131,072	65,536	—	—	—

Change history

Severity	Change	What	Detected
info	deprecated	deep-research-max-preview-04-2026: retirement announced for 2026-04-01 (date already passed)	2026-09-15
info	deprecated	deep-research-max-preview-04-2026: retirement announced for 2026-04-30 (date already passed)	2026-09-04
info	deprecated	deep-research-max-preview-04-2026: retirement announced for 2026-04-30 (date already passed)	2026-08-13
info	deprecated	deep-research-max-preview-04-2026: retires 2026-04-30 (105 days ago)	2026-08-13
info	deprecated	deep-research-max-preview-04-2026: retirement announced for 2026-04-01 (date already passed)	2026-08-11
low	added	new model deep-research-max-preview-04-2026	2026-08-04
info	deprecated	deep-research-max-preview-04-2026: retires 2026-04-01 (125 days ago)	2026-08-04