OpenAI: o3 Pro Release Date
o3 Pro was released on 2025-06-10, which was 511 days ago. Its recency score is 76.
Data sourced from OpenRouter API and manual data collection | Last updated: Nov 3, 2026, 8:01 AM UTC
Release date
2025-06-10
Recency score
76
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Frequently asked questions
When was o3 Pro released?
o3 Pro was released on 2025-06-10, which was 511 days ago. Its recency score is 76.