OpenAI API Models gpt-5.3-codex — lifecycle date eoasFrom is now 2026-10-01
For OpenAI API Models gpt-5.3-codex, product is openai-api-models; field changed is eoasFrom; new value is 2026-10-01; detected is 2026-10-05, recorded from its source on 2026-10-05; source re-checked 2026-10-26.
- Product
- openai-api-models
- Product label
- OpenAI API Models
- Release cycle
- gpt-5.3-codex verified
- Field changed
- eoasFrom verified
- New value
- 2026-10-01 verified
- Detected
- 2026-10-05 our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
{"name":"gpt-5.3-codex","codename":null,"label":"GPT-5.3-Codex","releaseDate":"2026-02-05","isLts":false,"ltsFrom":null,"isEoas":true,"eoasFrom":"2026-10-01"
— endoflife.date, retrieved 2026-10-05
Source
- endoflife.datehttps://endoflife.date/api/v1/products/openai-api-models
This one changes, and we watch it.Software end-of-life date changes — which dates moved and what they were before is re-read on a schedule and every change is dated. Subscribe: Atom feed · JSON · what has changed so far.