GPT-5 mini
by OpenAI
GPT-5 mini is a model from OpenAI, released on August 7, 2025. It has a 400K-token context window and can generate up to 128K output tokens. API pricing is $0.25 per 1M input tokens and $2 per 1M output tokens.
A faster, more cost-efficient version of GPT-5 for well-defined tasks. Great for well-defined tasks and precise prompts with high reasoning capabilities at reduced cost.
Key specs
| Provider | OpenAI |
|---|---|
| Release date | 2025-08-07 |
| License | proprietary |
| Context window | 400K tokens |
| Max output | 128K tokens |
| Input price | $0.25 / 1M tokens |
| Output price | $2 / 1M tokens |
| Intelligence Score | 27.3 |
Quick answers
What is the context window of GPT-5 mini?
GPT-5 mini has a context window of 400K tokens, with a maximum output of 128K tokens per response.
How much does GPT-5 mini cost?
GPT-5 mini costs $0.25 per 1M input tokens and $2 per 1M output tokens through the API.
Is GPT-5 mini open source?
No. GPT-5 mini is a proprietary model from OpenAI (proprietary license).
When was GPT-5 mini released?
OpenAI released GPT-5 mini on August 7, 2025.
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