codex-mini-latest
Released
codex-mini-latest is an AI model released by OpenAI on Friday, May 16 2025, the same day as codex-1. It has a 200k token context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider..
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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.
Frequently asked questions
codex-mini-latest was released by OpenAI on Friday, May 16 2025.