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OpenAI o3 retired from ChatGPT
OpenAI o3 is no longer available in ChatGPT
Was Availablenow Retired
What this means for you
Paid users who still picked o3 in model settings can no longer use it in ChatGPT; newer reasoning models remain available on paid plans.
Evidence
ChatGPT's release notes (May 28, 2026) announced 'OpenAI o3 will be retired from ChatGPT on August 26, 2026 following a 90-day sunset period'; at the time it was available to paid users only via model settings. The change applies to ChatGPT only, not the API.
- OpenAI o3 in ChatGPT
- Was Available to paid users via model settingsRetired
Sources
- ChatGPT release notes (announcement, May 28 2026) · archived
- Forkast: OpenAI Retired o3 From ChatGPT Today (Aug 26 2026)
Effective Aug 26, 2026 · First recorded May 28, 2026 · Reconstructed · High confidence