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Codex CLIGitHub Copilot
Freemium

The CLI itself is free and open source, but using it requires a paid or quota-limited…

 Freemium

A free tier is available, with paid plans for heavier use and for organisations.

Windows, macOS, Linux, Command line macOS, Command line
  • Open source terminal client under the Apache license
  • Integrates into existing workflows via CLI and IDE plugins
  • Works inside Visual Studio Code, which many developers already use
  • Available as an editor integration, a macOS app and a CLI
  • Requires an OpenAI account or API access to function
  • Usage limits depend on the access route chosen
  • Requires a GitHub account and an internet connection
  • Code is sent to GitHub's hosted service for processing
Downloadable app Downloadable app, Hosted service
Open source Closed source
License: Apache-2.0 License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Needs internet

Checked September 22, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.