Is deepseek-r1-0528-maas deprecated?

Q: Is deepseek-r1-0528-maas deprecated?

Yes — deprecated. Retired 2026-10-21 — 10 days ago. Requests to this identifier are expected to fail.

DEPRECATED

Retired 2026-10-21 — 10 days ago. Requests to this identifier are expected to fail.

state=dead sunset=2026-10-21 days_remaining=-10 severity=critical sources=litellm evidence_tier=catalog confirmed_by_endpoint=false documented_by_provider=false replacement=none corroborated=single-source divergent_fields=none checked=2026-10-31 05:09Z

deepseek/deepseek-r1-0528-maas

Vendor: deepseek. Tracked by 1 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
litellm	vertex_ai/deepseek-ai/deepseek-r1-0528-maas	65,336	8,192	$1.35	$5.4	2026-10-21

Change history

Severity	Change	What	Detected
info	modified	[source artifact — 7 providers changed identically on the same day] vertex_ai/deepseek-ai/deepseek-r1-0528-maas: capabilities lost assistant_prefill	2026-10-16
critical	deprecated	vertex_ai/deepseek-ai/deepseek-r1-0528-maas: deprecation announced for 2026-10-21 — in 27 days	2026-09-24
critical	deprecated	vertex_ai/deepseek-ai/deepseek-r1-0528-maas: retires 2026-10-21 (in 27 days)	2026-09-24