isitdeprecated.com
collectors 1/5 ok (openrouter, litellm, gemini, anthropic) last sync state DEGRADED models 2,985 events 19,470

DEPRECATED

Retired 2026-07-23 — 100 days ago. Requests to this identifier are expected to fail. The provider names gpt-5.6-sol as the replacement.

state=dead sunset=2026-07-23 days_remaining=-100 severity=critical sources=docs,litellm evidence_tier=documentation confirmed_by_endpoint=false documented_by_provider=docs replacement=gpt-5.6-sol corroborated=yes divergent_fields=none checked=2026-10-31 05:09Z

openai/gpt-5.1-chat-latest

Vendor: openai. Tracked by 2 of 5 sources.

What each source reports

SourceIDContext Max outIn $/Mtok Out $/MtokSunset
docsgpt-5.1-chat-latest————2026-07-23
litellmgpt-5.1-chat-latest128,00016,384$1.25$102026-07-23
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.

Change history

SeverityChangeWhat Detected
lowaddednew model gpt-5.1-chat-latest2026-10-23
mediumremoved[one catalog only — litellm still list it] gpt-5.1-chat-latest is no longer listed by this source — calls to it are expected to fail2026-10-17
infodeprecatedgpt-5.1-chat-latest: deprecation announced for 2026-07-23 (date already passed)2026-09-25
lowaddednew model gpt-5.1-chat-latest (128,000 ctx)2026-09-24
mediumremoved[one catalog only — docs still list it] gpt-5.1-chat-latest is no longer listed by this source — calls to it are expected to fail2026-09-23
criticaldeprecatedgpt-5.1-chat-latest: deprecation announced for 2026-07-23 (date already passed)2026-08-12
criticaldeprecatedgpt-5.1-chat-latest: retires 2026-07-23 (9 days ago)2026-08-01
lowaddednew model gpt-5.1-chat-latest2026-08-01