OpenAI o1-preview · model releaseo1-preview

Valid from

2024-09-12

Valid until

still holds

Published

2024-09-12

Recorded by AsOf

2026-11-04

Checked

2026-11-04 · its source page states the value and the date

Confidence

0.95

Sources

“Sep 12 Feature o1-preview o1-mini v1/chat/completions Released o1-preview and o1-mini”— what the page says, read 2026-11-04

• https://developers.openai.com/api/docs/changelog#2024-09-12primary · developers.openai.com · 2024-09-12

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