GPT-4 Turbo
Released
GPT-4 Turbo is an AI model released by OpenAI on Monday, Nov 6 2023, 237 days after GPT-4. 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.
- $10.00
- OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
- $30.00
Benchmarks
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Frequently asked questions
GPT-4 Turbo was released by OpenAI on Monday, Nov 6 2023.
GPT-4 Turbo was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.
GPT-4 Turbo costs $10.00 per million input tokens and $30.00 per million output tokens through the OpenAI API. Rates are pay-as-you-go API prices verified against OpenAI's published pricing on August 18, 2026.
GPT-4 Turbo reports 1 tracked benchmark score — GPQA Diamond: 42.5%. Scores are the figures published at release by OpenAI.
GPT-4 Turbo has a context window of 128k. That is the maximum amount of input plus output the model can hold in a single request.
No. GPT-4 Turbo 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-4 on Mar 14 2023, 237 days earlier. It was followed by GPT-4o on May 13 2024.