OpenAI's flagship series of reasoning models for solving hard problems. The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide consistently better answers. o1 pro comes with a massive 100,000 word output window.
Added Jan 25, 2025
Context Window
200.0K
Max Output
100.0K
Input Price (Auto)
$150.00/1M
Output Price (Auto)
$600.00/1M
Cache Read (Auto)
$75.00/1M
Capabilities
Performance metrics and benchmarks
Sourced from Artificial Analysis.
Intelligence Index
25.8
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Last updated May 15, 2026
Artificial Analysis
