OpenAI
OpenAI: o3 Pro
openai/o3-pro
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 better answers. Note that BYOK is required for this model. Set up here:
Input
$20
/ 1M tokens
Output
$80
/ 1M tokens
Context window
200K
tokens
Limits
Context
200,000
tokens
Max output
100,000
50% of the context window
Model facts
Author
OpenAI
Tokenizer
GPT
Modality
Text + Image + File -> Text
Knowledge cutoff
2024-06-30
Created
Jun 10, 2025
Reasoning
Required
Publication status
Hugging Face: unavailableLicense: not publishedParameter count: not published
Modalities
Input · TextInput · FileInput · ImageOutput · Text
Generation controls
Include reasoningMax tokensReasoningResponse formatSeedStructured outputsTool choiceTools
Capability scores
21.9
Intelligence index
Better than 52% of models compared