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Documentation Index

Fetch the complete documentation index at: https://docs.ollama.com/llms.txt

Use this file to discover all available pages before exploring further.

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Install

Install the Codex App for macOS or Windows.

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Usage with Ollama

Codex works best with a larger context window. It is recommended to use a context window of at least 64k tokens.

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Quick setup

ollama launch codex-app
To choose a model: 
ollama launch codex-app --model gpt-oss:120b
To configure without launching: 
ollama launch codex-app --config
To restore your usual Codex profile: 
ollama launch codex-app --restore

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Backups

Before overwriting Codex App config files, Ollama Launch saves backups under ~/.ollama/backup/codex-app/. On Windows, ~ resolves to your user profile directory.