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j178/chatgpt

A terminal CLI for chatting with OpenAI's GPT-3.5 and GPT-4 models, with interactive chat mode and pipeline support.

Open-source alternative to:ChatGPT

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Last commit
2 months ago

What is it?

chatgpt is a command-line client for OpenAI's chat models, written in Go. Running `chatgpt` opens an interactive chat session in the terminal, and `chatgpt -p` starts a session with a named or ad-hoc system prompt, such as a translator persona.

The tool also works in shell pipelines: text piped in via stdin is sent as input, so it can be combined with other commands to transform files or output. Conversations are saved locally in a JSON file, and each one can carry its own model, prompt, context length and token settings. Keyboard shortcuts for multi-line input, history navigation and switching between conversations are configurable.

It reads an OpenAI API key from an environment variable or config file, and can target a custom endpoint or Azure OpenAI deployments through model mapping.

Key features

  • 01Interactive chat mode in the terminal
  • 02Predefined or on-the-fly prompts via the -p flag
  • 03Stdin support for use in shell pipelines
  • 04Local saving and switching of multiple conversations
  • 05Configurable key bindings and per-conversation model settings
  • 06Supports custom endpoints and Azure OpenAI deployments

Use cases

  • Quick questions from a terminal without opening a browser
  • Transforming files or command output with a prompt in a shell pipeline
  • Running a translator or other persona-based prompt from the command line

Quick start

  1. 1

    Install the binary with Go

    go install github.com/j178/chatgpt/cmd/chatgpt@latest
  2. 2

    Get an OpenAI API key and export it

    export OPENAI_API_KEY=xxx
  3. 3

    Start chat mode

    chatgpt

Things to know

  • Requires an OpenAI API key and only supports OpenAI GPT-3.5 and GPT-4 models for now.
  • The project has no license specified in its metadata, so reuse terms are unclear.

In collections

CLI & terminal tools

Topics

#chatgpt#cli#openai#golang#terminal#llm#go#gpt-3#gpt-4

FAQ

What is chatgpt?
A terminal CLI for chatting with OpenAI's GPT-3.5 and GPT-4 models, with interactive chat mode and pipeline support. chatgpt is a command-line client for OpenAI's chat models, written in Go. Running `chatgpt` opens an interactive chat session in the terminal, and `chatgpt -p` starts a session with a named or ad-hoc system prompt, such as a translator persona.
Is chatgpt free to use? What license does it have?
chatgpt has no declared license. Its code is public, but without a license you have no explicit permission to reuse it; ask the author before relying on it.
Is chatgpt still maintained?
Updated within 6 months. The last commit to chatgpt was on Aug 29, 2026.
What can I use chatgpt for?
Quick questions from a terminal without opening a browser Transforming files or command output with a prompt in a shell pipeline Running a translator or other persona-based prompt from the command line
How do I install chatgpt?
Install the binary with Go: go install github.com/j178/chatgpt/cmd/chatgpt@latest Get an OpenAI API key and export it: export OPENAI_API_KEY=xxx Start chat mode: chatgpt
Where can I get chatgpt?
The source code and installation instructions are on GitHub: https://github.com/j178/chatgpt

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