Codex CLI

April 17, 2011 - OpenAI today released Codex CLI, a lightweight end-run coding intelligence that is now fully open source on GitHub. Codex CLI works directly on the user's computer and is designed to maximize the inference capabilities of models such as o3 and o4-mini, with support for additional API models such as GPT-4.1 coming soon. Users can gain multimodal inference capabilities from the command line, such as by passing screenshots or low-fidelity sketches to the model, combined with access to native code...