o1-preview
Released
o1-preview is an AI model released by OpenAI on Thursday, Sep 12 2024, 56 days after GPT-4o mini. It has a 128k token context window. Benchmark results (shown below) cover GPQA Diamond.
API pricing
- InputWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
- $15.00
- Cached inputA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
- $7.50
- OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
- $60.00
Benchmarks
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Frequently asked questions
o1-preview was released by OpenAI on Thursday, Sep 12 2024.
o1-preview was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.
o1-preview costs $15.00 per million input tokens and $60.00 per million output tokens through the OpenAI API. Cached input is $7.50 per million tokens. Rates are pay-as-you-go API prices verified against OpenAI's published pricing on August 18, 2026.
o1-preview reports 1 tracked benchmark score — GPQA Diamond: 73.3%. Scores are the figures published at release by OpenAI.
o1-preview has a context window of 128k. That is the maximum amount of input plus output the model can hold in a single request.
No. o1-preview is a proprietary model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.
OpenAI's previous tracked release was GPT-4o mini on Jul 18 2024, 56 days earlier. It was followed by o1-mini on Sep 12 2024.