cli.md Codex Docs, 2026-03-18 12:23 UTC → 2026-05-07 17:08 UTC

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6ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex. Learn more about [what's included](https://developers.openai.com/codex/pricing).6ChatGPT Plus, Pro, Business, Edu, and Enterprise plans include Codex. Learn more about [what's included](https://developers.openai.com/codex/pricing).

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8<YouTubeEmbed

9 title="Codex CLI overview"

10 videoId="iqNzfK4_meQ"

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8## CLI setup15## CLI setup

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10Choose your package manager17<CliSetupSteps client:load />

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12npmHomebrew19The Codex CLI is available on macOS, Windows, and Linux. On Windows, run Codex

20 natively in PowerShell with the Windows sandbox, or use WSL2 when you need a

21 Linux-native environment. For setup details, see the{" "}

22 <a href="/codex/windows">Windows setup guide</a>.

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141. 124If you're new to Codex, read the [best practices guide](https://developers.openai.com/codex/learn/best-practices).

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16 ### Install26---

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18 Install the Codex CLI with npm.28## Work with the Codex CLI

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20 npm install command30<BentoContainer>

31 <BentoContent href="/codex/cli/features#running-in-interactive-mode">

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22 npm i -g @openai/codexCopy33### Run Codex interactively

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25 ### Run35Run `codex` to start an interactive terminal UI (TUI) session.

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27 Run Codex in a terminal. It can inspect your repository, edit files, and run commands.37 </BentoContent>

38 <BentoContent href="/codex/cli/features#models-reasoning">

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29 Run Codex command40### Control model and reasoning

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31 codexCopy42Use `/model` to switch between GPT-5.4, GPT-5.3-Codex, and other available models, or adjust reasoning levels.

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33 The first time you run Codex, you'll be prompted to sign in. Authenticate with your ChatGPT account or an API key.44 </BentoContent>

45 <BentoContent href="/codex/cli/features#image-inputs">

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35 See the [pricing page](https://developers.openai.com/codex/pricing) if you're not sure which plans include Codex access.47### Image inputs

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38 ### Upgrade49Attach screenshots or design specs so Codex reads them alongside your prompt.

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40 New versions of the Codex CLI are released regularly. See the [changelog](https://developers.openai.com/codex/changelog) for release notes. To upgrade with npm, run:51 </BentoContent>

52 <BentoContent href="/codex/cli/features#image-generation">

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42 npm upgrade command54### Image generation

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44 npm i -g @openai/codex@latestCopy56Generate or edit images directly in the CLI, and attach references when you want Codex to iterate on an existing asset.

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46The Codex CLI is available on macOS and Linux. Windows support is58 </BentoContent>

47experimental. For the best Windows experience, use Codex in a WSL workspace

48and follow our [Windows setup guide](https://developers.openai.com/codex/windows).

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50If you're new to Codex, read the [best practices guide](https://developers.openai.com/codex/learn/best-practices).60 <BentoContent href="/codex/cli/features#running-local-code-review">

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62### Run local code review

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53## Work with the Codex CLI64Get your code reviewed by a separate Codex agent before you commit or push your changes.

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66 </BentoContent>

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68 <BentoContent href="/codex/subagents">

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70### Use subagents

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72Use subagents to parallelize complex tasks.

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74 </BentoContent>

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76 <BentoContent href="/codex/cli/features#web-search">

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78### Web search

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80Use Codex to search the web and get up-to-date information for your task.

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82 </BentoContent>

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84 <BentoContent href="/codex/cli/features#working-with-codex-cloud">

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86### Codex Cloud tasks

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88Launch a Codex Cloud task, choose environments, and apply the resulting diffs without leaving your terminal.

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90 </BentoContent>

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55[### Run Codex interactively92 <BentoContent href="/codex/noninteractive">

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57Run `codex` to start an interactive terminal UI (TUI) session.](https://developers.openai.com/codex/cli/features#running-in-interactive-mode)[### Control model and reasoning94### Scripting Codex

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59Use `/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 inputs96Automate repeatable workflows by scripting Codex with the `exec` command.

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61Attach screenshots or design specs so Codex reads them alongside your prompt.](https://developers.openai.com/codex/cli/features#image-inputs)[### Run local code review98 </BentoContent>

99 <BentoContent href="/codex/mcp">

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63Get your code reviewed by a separate Codex agent before you commit or push your changes.](https://developers.openai.com/codex/cli/features#running-local-code-review)[### Use subagents101### Model Context Protocol

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65Use subagents to parallelize complex tasks.](https://developers.openai.com/codex/subagents)[### Web search103Give Codex access to additional third-party tools and context with Model Context Protocol (MCP).

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67Use Codex to search the web and get up-to-date information for your task.](https://developers.openai.com/codex/cli/features#web-search)[### Codex Cloud tasks105 </BentoContent>

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69Launch a Codex Cloud task, choose environments, and apply the resulting diffs without leaving your terminal.](https://developers.openai.com/codex/cli/features#working-with-codex-cloud)[### Scripting Codex107 <BentoContent href="/codex/cli/features#approval-modes">

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71Automate repeatable workflows by scripting Codex with the `exec` command.](https://developers.openai.com/codex/sdk#using-codex-cli-programmatically)[### Model Context Protocol109### Approval modes

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73Give Codex access to additional third-party tools and context with Model Context Protocol (MCP).](https://developers.openai.com/codex/mcp)[### Approval modes111Choose the approval mode that matches your comfort level before Codex edits or runs commands.

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75Choose the approval mode that matches your comfort level before Codex edits or runs commands.](https://developers.openai.com/codex/cli/features#approval-modes)113 </BentoContent>

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