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codex — Natural language code assistant for the terminal, powered by OpenAI. Reads and edits files in your c

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the codex command: Natural language code assistant for the terminal, powered by OpenAI. Reads and edits files in your current directory to fulfill requests. More information: <https://github.com/openai/codex>.

Solution

codex — Natural language code assistant for the terminal, powered by OpenAI. Reads and edits files in your current directory to fulfill requests. More information: <https://github.com/openai/codex>.

Start an interactive Codex session in the current directory:

codex

Run a single Codex command using a prompt:

codex "{{your prompt}}"

Run a prompt in full auto mode:

codex --full-auto "{{your prompt}}"

Use a specific model:

codex {{[-m|--model]}} {{model_name}} "{{your prompt}}"

Use a local open source model provider:

codex --oss --local-provider {{lmstudio|ollama}} "{{your prompt}}"

[Interactive] Show the resource usage for the current session:

/cost

Display help:

codex {{[-h|--help]}}

Code Snippets

Start an interactive Codex session in the current directory

codex

Run a single Codex command using a prompt

codex "{{your prompt}}"

Run a prompt in full auto mode

codex --full-auto "{{your prompt}}"

Use a specific model

codex {{[-m|--model]}} {{model_name}} "{{your prompt}}"

Use a local open source model provider

codex --oss --local-provider {{lmstudio|ollama}} "{{your prompt}}"

Context

tldr-pages: common/codex

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