#Question

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pure musk
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How can I use chatgpt from cli

valid otterBOT
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Hi @pure musk. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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You can use ChatGPT-related functionality from the command line in two main ways mentioned in the provided sources:

1. Use Codex CLI (for coding workflows)

OpenAI’s Codex product is designed for developer workflows and can be used from the CLI once it’s connected to your ChatGPT subscription. [Using Codex]

Steps (high level):

  1. Make sure you have a paid ChatGPT plan (Plus, Pro, Business, Edu, or Enterprise). [Using Codex]
  2. Install and launch the Codex CLI (see the Codex CLI link on the Codex docs site). [Using Codex]
  3. Sign in with your ChatGPT account in the CLI (no separate API key needed once you switch to subscription-based access). [Using Codex]
  4. Use the CLI commands to chat with Codex (which uses GPT‑5.1‑codex models) and perform coding tasks from your terminal. [Codex FAQ]

Note: The sources don’t list the exact CLI commands, only that you should install the Codex CLI and sign in with ChatGPT.

2. Use the OpenAI API from your own CLI scripts

The sources briefly show how to call ChatGPT models via the OpenAI Python library, which you can run from your terminal. [Format inputs]

Example (you’d run this as a script from the CLI):

from openai import OpenAI
import os
#

client = OpenAI(api_key=os.environ.get("OPENAI_API_KEY", "<your OpenAI API key if not set as env var>"))

Here you would call a chat model, e.g. gpt-4.1 or similar

(the exact chat call is not fully shown in the provided snippet)


You’d:

1. Install the OpenAI Python library.
2. Set your `OPENAI_API_KEY`.
3. Run a Python script from your terminal that sends messages to a ChatGPT model via the API.

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The knowledge sources do **not** provide a simple “chatgpt” terminal command for general use beyond Codex CLI and API examples, so if you need a specific CLI tool name or full command set, it isn’t detailed in the provided documents.
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