OpenAI · Model retirement
gpt-5.3-codex
Stops working (in 161 days)
Calls to the model gpt-5.3-codex on OpenAI stop working on April 1, 2027.
What to use instead of gpt-5.3-codex
Move to gpt-6-sol, recommended by OpenAI.
Facts
- API
- OpenAI
api.openai.com - Model
gpt-5.3-codex- Kind
- Model retirement
- Takes effect
- April 1, 2027
- Calls after that day
- Fail
- Source
- Deprecations page
- Last updated
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