# o3-mini-high

o3-mini-high is an AI model released by OpenAI on Jan 31 2025.

## Facts

| Field | Value |
| --- | --- |
| Model | o3-mini-high |
| Developer | OpenAI |
| Release date | Friday, Jan 31 2025 |
| Licensing | Closed |

## Questions and answers

### When was o3-mini-high released?

o3-mini-high was released by OpenAI on Friday, Jan 31 2025.

### Who made o3-mini-high?

o3-mini-high was built by OpenAI. Creators of ChatGPT and the GPT series of models. Pioneered large-scale language model research.

### Is o3-mini-high open source?

No. o3-mini-high 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 o3-mini-high?

OpenAI's previous tracked release was o3-mini on Jan 31 2025. It was followed by GPT-4.5 on Feb 27 2025.


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Canonical page: https://aireleasetracker.com/model/openai/o3-mini-high
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.