Obituaries · OpenAI
gpt-5.3-chat-latest, ?–2026
Retired by OpenAI
OpenAI has confirmed the retirement of gpt-5.3-chat-latest, effective August 10, 2026. It answered questions, wrote emails and was blamed for both. Calls to its ID are now expected to fail.
Its work passes to gpt-5.6-sol, which the family describes as 'recommended'.
| Model ID | gpt-5.3-chat-latest |
|---|---|
| Provider | OpenAI deprecations page |
| Shut down | August 10, 2026 |
| Successor | gpt-5.6-sol |
In lieu of flowers
Replace the string. Search your code for gpt-5.3-chat-latest and swap it for gpt-5.6-sol, or paste a repo into Model Graveyard Check to find every dead model at once.
Want to say something to it? Leave a letter on the farewell wall.
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Technical notice, with a code scanner: gpt-5-3-chat-latest on Model Graveyard Check