GitHub Copilot's command-line interface. Major switch to usage-based billing (GitHub AI Credits) effective Jun 1, 2026. Agent mode with autonomous multi-step coding. Free for students/teachers.

Supported Models

GPT-5.5-InstantClaude Sonnet 4.6Gemini FlashGrok Code Fast 1Claude Fable 5 (paid)

Key Features

  • Agent mode
  • Usage-based AI Credits
  • Multi-model
  • Free for students

Pros

  • No credit card
  • Free for students/teachers
  • GitHub native
  • New Max tier ($100)

Cons

  • Usage-based billing since Jun 1
  • Premium models need paid tiers

Best Use Cases

GitHub usersStudentsCI/CD workflows