# o4-mini-high

o4-mini-high is an AI model released by OpenAI on Apr 16 2025.

## Facts

| Field | Value |
| --- | --- |
| Model | o4-mini-high |
| Developer | OpenAI |
| Release date | Wednesday, Apr 16 2025 |
| Licensing | Proprietary |

## Questions and answers

### When was o4-mini-high released?

o4-mini-high was released by OpenAI on Wednesday, Apr 16 2025.

### Who made o4-mini-high?

o4-mini-high was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.

### Is o4-mini-high open source?

No. o4-mini-high is a proprietary 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 o4-mini-high?

OpenAI's previous tracked release was o4-mini on Apr 16 2025. It was followed by o3-pro on Jun 10 2025.


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Canonical page: https://aireleasetracker.com/model/openai/o4-mini-high
Full dataset: https://aireleasetracker.com/llms-full.txt · JSON: https://aireleasetracker.com/models.json
Source: AI Release Tracker (https://aireleasetracker.com). Benchmark scores are the figures published by the releasing lab at launch.