The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...
Developer
OpenAI
Release Date
June 10, 2025
Context Window
200,000 tokens≈ 267 words
API Access
Publicly AvailableIntegrate via official API
Input Cost
$20.00per million tokens
Output Cost
$80.00per million tokens
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