OpenAI o1 · releasedo1-pro

validasserted

Valid from: 2025-03-19
Valid until: still holds
Published: 2025-03-19
Recorded by AsOf: 2026-11-03
Checked: 2026-11-03 · its source page states the value and the date
Confidence: 0.50

Sources

“Mar 19 Feature o1-pro v1/responses v1/batch Released o1-pro , a version of the o1 reasoning model that uses more compute to answer hard problems with better reasoning and consistency.”— what the page says, read 2026-11-03

OpenAI API changelog, March 19, 2025primary · developers.openai.com · 2025-03-19

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