When was GPT-4o mini released?

GPT-4o mini was released by OpenAI on Thursday, Jul 18 2024.

Who made GPT-4o mini?

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

How much does GPT-4o mini cost?

GPT-4o mini costs $0.15 per million input tokens and $0.60 per million output tokens through the OpenAI API. Cached input is $0.075 per million tokens. Rates are pay-as-you-go API prices verified against OpenAI's published pricing on August 18, 2026.

What benchmark scores did GPT-4o mini get?

GPT-4o mini reports 2 tracked benchmark scores — BullshitBench v2: 2%; GPQA Diamond: 40.2%. Tracked scores may come from lab reports or independent benchmarks; source details accompany the benchmark data.

What is the context window of GPT-4o mini?

GPT-4o mini 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-4o mini open source?

No. GPT-4o mini 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-4o mini?

OpenAI's previous tracked release was GPT-4o on May 13 2024, 66 days earlier. It was followed by o1-preview on Sep 12 2024.

GPT-4o mini

Released Jul 18 2024

GPT-4o mini is an AI model released by OpenAI on Thursday, Jul 18 2024, 66 days after GPT-4o. It has a 128k token context window. Benchmark results (shown below) cover BullshitBench v2, and GPQA Diamond.

API pricing

Input: $0.15
Cached input: $0.075
Output: $0.60

USD per 1M tokens

Available from


Azure	—	$0.15	$0.60	128K
OpenAI	—	$0.15	$0.60	128K
Azure	swedencentral	$0.165	$0.66	128K

USD per 1M tokens

Benchmarks

Reasoning & science

GPQA Diamond

40.2%

#60 of 61

Robustness

BullshitBench v2

#96 of 97

Compare GPT-4o mini with

GPT-4o mini

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Frequently asked questions

: GPT-4o mini was released by OpenAI on Thursday, Jul 18 2024.
: GPT-4o mini was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.
: GPT-4o mini costs $0.15 per million input tokens and $0.60 per million output tokens through the OpenAI API. Cached input is $0.075 per million tokens. Rates are pay-as-you-go API prices verified against OpenAI's published pricing on August 18, 2026.
: GPT-4o mini reports 2 tracked benchmark scores — BullshitBench v2: 2%; GPQA Diamond: 40.2%. Tracked scores may come from lab reports or independent benchmarks; source details accompany the benchmark data.
: GPT-4o mini 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-4o mini 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-4o on May 13 2024, 66 days earlier. It was followed by o1-preview on Sep 12 2024.