# codex-mini-latest

codex-mini-latest is an AI model released by OpenAI on May 16 2025. It has a 200k context window.

## Facts

| Field | Value |
| --- | --- |
| Model | codex-mini-latest |
| Developer | OpenAI |
| Release date | Friday, May 16 2025 |
| Licensing | Closed |
| Context window | 200k |

## About codex-mini-latest

OpenAI released codex-mini-latest alongside codex-1 in May 2025. It adapted o4-mini for quick questions and edits in a developer’s local repository.

The model became the default in Codex CLI and was also available through the Responses API. Its 200,000-token context window applied to the API endpoint, whose underlying snapshot OpenAI could update.

## Questions and answers

### When was codex-mini-latest released?

codex-mini-latest was released by OpenAI on Friday, May 16 2025.

### Who made codex-mini-latest?

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

### What is the context window of codex-mini-latest?

codex-mini-latest has a context window of 200k. Providers may specify separate input and output token limits.

### Is codex-mini-latest open source?

No. codex-mini-latest 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 codex-mini-latest?

OpenAI's previous tracked release was codex-1 on May 16 2025. It was followed by o3-pro on Jun 10 2025.


---

Canonical page: https://aireleasetracker.com/model/openai/codex-mini-latest
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.