o4-mini
OpenAI Released January 2025
OpenAI's most advanced small reasoning model, best-performing on AIME 2024 and 2025
o4-mini
OpenAI • January 2025
Training Data
Up to December 2024
o4-mini
January 2025
Parameters
~25 billion
Training Method
Advanced Reinforcement Learning
Context Window
200,000 tokens
Knowledge Cutoff
December 2024
Key Features
Fast Reasoning • Cost Efficient • AIME Leader
Capabilities
Efficiency: Outstanding
Math: Outstanding
Reasoning: Excellent
What's New in This Version
Best-performing benchmarked model on AIME 2024 and 2025, optimized for speed and cost
OpenAI's most advanced small reasoning model, best-performing on AIME 2024 and 2025
What's New in This Version
Best-performing benchmarked model on AIME 2024 and 2025, optimized for speed and cost
Technical Specifications
Parameters ~25 billion
Context Window 200,000 tokens
Training Method Advanced Reinforcement Learning
Knowledge Cutoff December 2024
Training Data Up to December 2024
Key Features
Fast Reasoning Cost Efficient AIME Leader
Capabilities
Efficiency: Outstanding
Math: Outstanding
Reasoning: Excellent
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