o3-pro
OpenAI's most powerful reasoning model designed to think longer and provide the most reliable responses
o3-pro
OpenAI • June 2025
Training Data
Up to April 2025
o3-pro
June 2025
Parameters
~200 billion
Training Method
Advanced Reinforcement Learning
Context Window
200,000 tokens
Knowledge Cutoff
April 2025
Key Features
Extended Reasoning • High Reliability • Pro-level Performance
Capabilities
Reasoning: Outstanding
Reliability: Outstanding
Complex Tasks: Excellent
What's New in This Version
Enhanced reasoning capabilities with extended thinking time for maximum reliability
OpenAI's most powerful reasoning model designed to think longer and provide the most reliable responses
What's New in This Version
Enhanced reasoning capabilities with extended thinking time for maximum reliability
Technical Specifications
Key Features
Capabilities
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