cli.md Codex Docs, 2026-03-05 06:22 UTC → 2026-03-05 18:41 UTC

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56Run `codex` to start an interactive terminal UI (TUI) session.](https://developers.openai.com/codex/cli/features#running-in-interactive-mode)[### Control model and reasoning56Run `codex` to start an interactive terminal UI (TUI) session.](https://developers.openai.com/codex/cli/features#running-in-interactive-mode)[### Control model and reasoning

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58Use `/model` to switch between GPT-5.3-Codex and other available models, or adjust reasoning levels.](https://developers.openai.com/codex/cli/features#models-reasoning)[### Image inputs58Use `/model` to switch between GPT-5.4, GPT-5.3-Codex, and other available models, or adjust reasoning levels.](https://developers.openai.com/codex/cli/features#models-reasoning)[### Image inputs

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60Attach screenshots or design specs so Codex reads them alongside your prompt.](https://developers.openai.com/codex/cli/features#image-inputs)[### Run local code review60Attach screenshots or design specs so Codex reads them alongside your prompt.](https://developers.openai.com/codex/cli/features#image-inputs)[### Run local code review

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