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o1API
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding.
Prices update automatically — checked hourly against provider list prices.
- $26.25 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 6% of the 173 commercial models tracked here
- 63 of 70 OpenAI models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for o1, measured by Artificial Analysis. Higher is better.
Models at this level cost $0.31 per 1M tokens (median of 13) — this one costs $26.25.
Cheaper and better on this index: Claude Opus 5 (Fast) · Claude Opus 5 · Claude Fable 5 and 118 more
About this model
o1 is a commercial AI model by OpenAI. The specifications below are tracked automatically: pricing is refreshed hourly 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 o1?
o1 is an AI language model from OpenAI. It is a proprietary model, available through an API. It scores 23.4 on the Artificial Analysis intelligence index.
Is o1 free?
o1 is not free: it costs $15 per million input tokens and $60 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is o1 good at?
Independent benchmarks from Artificial Analysis give it GPQA 74.7%, MMLU-Pro 84.1%, Humanity's Last Exam 7.7%, Long Context Reasoning 59.3%, LiveCodeBench 67.9%, SciCode 35.8%, MATH-500 97%, AIME 72.3%, IFBench 70.3%, τ²-Bench 62.6%, Terminal-Bench Hard 12.9%. It is particularly used for code generation.