UTC 2026-09-16 build snapshot, not live metrics. Date states can update; source verification timestamps do not.
Developer APIs · manually curated catalog
Changes affecting existing calls, including high-risk notices without deadlines. A past date does not mean your migration is complete.
Developer API · Sep 10, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
The previous-generation V4 Flash and V4 Flash Vision Exp models have been retired; their model names are temporarily routed to V4.1 Flash.
Developer API · Sep 10, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
After 12:00 Beijing Time on Sep 14, 2026, all requests to deepseek-v4-pro will be routed to V4.1 Flash and billed at the V4.1 Flash price, pending the release of V4.1 Pro.
Model lifecycle and pricing · Sep 2, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
xAI retires grok-imagine-image-quality on Nov 2, 2026; requests redirect to grok-imagine-image-2.0 with quality set to low on /v1/images/generations and /v1/images/edits with unchanged request/response shapes and lower per-image price.
Request defaults and billing · Aug 28, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
xAI changed the omitted quality behavior for grok-imagine-image-2.0: Omitted quality defaults to auto; generation currently resolves to low and editing to medium.
Model lifecycle · Aug 26, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI lists Feb 26, 2027 as the shutdown date for 4 transcription model identifiers.
Model alias routing · Jul 29, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
xAI announced that the grok-voice-latest alias would route to grok-voice-think-fast-2.0 starting Aug 5, 2026.
Model lifecycle · Jul 20, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI lists Jan 20, 2027 as the shutdown date for legacy audio/realtime/transcription identifiers.
Model lifecycle · Jun 11, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI lists Dec 11, 2026 as the shutdown date for older GPT-5 and o3 snapshots.
Platform capability · Jun 3, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI schedules Agent Builder to shut down on Nov 30, 2026; ChatKit remains available.
Platform capability · Jun 3, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI schedules the Evals dashboard and API to shut down on Nov 30, 2026 after a read-only period starting Oct 31, 2026.
Platform capability · Jun 3, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI schedules the v1/prompts API and reusable prompt objects to shut down on Nov 30, 2026.
Model lifecycle · Jun 2, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI lists Dec 1, 2026 as the shutdown date for older GPT Image identifiers.
Platform capability · May 7, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI states that active existing customers will no longer be able to create new self-serve fine-tuning jobs from Jan 6, 2027.
Developer API · Apr 24, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
The listed aliases were scheduled for discontinuation on Jul 24, 2026. Replacement: deepseek-v4-flash.
Model lifecycle · Apr 22, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
A broad OpenAI model shutdown wave is listed for Oct 23, 2026, with substitutes varying by workload.
API and model lifecycle · Mar 24, 2026
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
Requests to the listed models and API are scheduled to stop working on Sep 24, 2026.
Model lifecycle · Sep 26, 2025
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
OpenAI lists Sep 28, 2026 as the shutdown date for 4 legacy model identifiers.
Developer API · Jun 20, 2025
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
The older API remains operational but is no longer updated.
Model lifecycle · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
Anthropic's model status page marks claude-mythos-preview as deprecated and points developers to claude-mythos-5.
Request parameters · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
Anthropic documents the following behavior on the affected models: Omit parameters; non-default values return HTTP 400.
Developer API · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
The listed embedding models retired on Apr 4, 2026.
Model lifecycle · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
Google lists May 14, 2028 as the shutdown date for gemini-embedding-001 and recommends gemini-embedding-2.
Model lifecycle · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
Google's deprecation table lists Earliest: May 7, 2027 for gemini-3.1-flash-lite and recommends gemini-3.5-flash-lite.
Developer API · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
Music API access changed: Paid APIs closed to new users; existing paying users continue. Free APIs to be discontinued.
Developer API · Not announced
Verification is under 30 days old, not a live check; date passage does not confirm shutdown.
The model card marks mistral-medium-2508 deprecated and recommends Mistral Medium 3.5.
Developer API · Not announced
Facts remain unverified; a check timestamp is not factual confirmation.
The retirement index and linked notice header disagree; affected model IDs and regions could not be confirmed.
