OpenAI o3 · releasedo3-pro

validasserted

Valid from: 2025-06-10
Valid until: still holds
Published: 2025-06-10
Recorded by AsOf: 2026-11-02
Checked: 2026-11-02 · its source page states the value and the date
Confidence: 0.50

Sources

“Jun 10 Feature o3-pro v1/responses v1/batch Released o3-pro , a version of the o3 reasoning model that uses more compute to answer hard problems with better reasoning and consistency.”— what the page says, read 2026-11-02

OpenAI API changelog, June 10, 2025primary · developers.openai.com · 2025-06-10

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