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Codex CLI vs GitHub Copilot

Codex CLI is listed under CLI agents, GitHub Copilot under Autocomplete. Each name links to the product's own site.

Codex CLIGitHub Copilot
CategoryCLI agentsAutocomplete
PricingOpen sourceFreemium
Public codeYesNo
Tagsterminal, openai, open-source, sandboxcompletion, github, chat, agent
Websitegithub.comgithub.com

What Codex CLI does

Open source coding agent from OpenAI that runs in your terminal. It reads and edits files in the chosen directory and runs commands. Approval modes control what it may do without asking.

What GitHub Copilot does

GitHub's AI coding assistant. It gives inline suggestions, chat and agent features in VS Code, JetBrains IDEs, Visual Studio and other editors. A free plan has monthly limits.

Other options

See all CLI agents, or alternatives to Codex CLI and GitHub Copilot.