O
o3 ProAPI
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning.
Prices update automatically — checked daily against provider list prices.
- $35 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 3% of the 226 commercial models tracked here
- 95 of 101 OpenAI models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for o3 Pro, measured by Artificial Analysis. Higher is better.
About this model
o3 Pro is a commercial AI model by OpenAI. The specifications below are tracked automatically: pricing is refreshed daily from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is o3 Pro?
o3 Pro is an AI language model from OpenAI. It is a proprietary model, available through an API.
Is o3 Pro free?
o3 Pro is not free: it costs $20 per million input tokens and $80 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is o3 Pro good at?
Independent benchmarks from Artificial Analysis give it GPQA 84.5%.