When was GPT-4 Turbo released?

GPT-4 Turbo was released by OpenAI on Monday, Nov 6 2023.

Who made GPT-4 Turbo?

GPT-4 Turbo was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.

How much does GPT-4 Turbo cost?

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.

What benchmark scores did GPT-4 Turbo get?

GPT-4 Turbo reports 1 tracked benchmark score — GPQA Diamond: 42.5%. Tracked scores may come from lab reports or independent benchmarks; source details accompany the benchmark data.

What is the context window of GPT-4 Turbo?

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.

Is GPT-4 Turbo open source?

No. GPT-4 Turbo is a closed model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.

What came before and after GPT-4 Turbo?

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.

GPT-4 Turbo

Released Nov 6 2023

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

Input: $10.00
Output: $30.00

USD per 1M tokens

Available from


OpenAI	$10.00	$30.00	128K

USD per 1M tokens

Benchmarks

GPQA Diamond

42.5%

#55 of 59

Compare GPT-4 Turbo with

GPT-4 Turbo

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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%. Tracked scores may come from lab reports or independent benchmarks; source details accompany the benchmark data.
: 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 closed 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.