UTC 2026-09-16 build snapshot, not live metrics. Date states can update; source verification timestamps do not.
OpenAI direct API · Direct developer platform; eligibility and regional restrictions are account-specific.
Not Azure OpenAI.
Bounded manual catalog. Original event checks retained from 2026-09-01; not reverified in this expansion.
Unconfirmed regions are not assumed to be global. Automatic monitoring is OFF. Source checks
Models, platform APIs, endpoints, fine-tuning, realtime, audio and media lifecycle changes.
Timeline
Initial coverage is intentionally narrow and source-verified. It is not a complete archive.
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.
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.
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.
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 Agent Builder to shut down on Nov 30, 2026; ChatKit remains available.
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.
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 · 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.
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 · 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.
