OpenAI o4-mini
OpenAI reasoning language model
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OpenAI o4-mini is a generative pre-trained transformer model created by OpenAI. On April 16, 2025, the o4-mini model was released to all ChatGPT users (including free-tier users) as well as via the Chat Completions API and Responses API.[1][2][3][4]
| o4-mini | |
|---|---|
| Developer | OpenAI |
| Initial release | April 16, 2025 |
| Predecessor | OpenAI o3-mini |
| Successor | GPT-5 mini |
| Type | |
Additionally, OpenAI introduced the o4-mini-high model, which was made available exclusively to paid-tier ChatGPT users. The high model was a slower model which had a higher reasoning effort to produce more accurate responses.[5]
Unlike earlier models, o4-mini is capable of processing both text and images. It also allows to perform tasks like analyzing whiteboard sketches during its "chain-of-thought" phase.[6]