GitHub Copilot
by GitHub (Microsoft)GitHub's AI assistant for code completion, chat, agent mode in the editor, a cloud coding agent you assign issues to, code review and a CLI. It works in VS Code, Visual Studio, JetBrains, Xcode, Neovim, Eclipse and on github.com, and lets you pick models from Anthropic, OpenAI, Google, xAI and others.
Good
- Cheapest paid entry point at $10/mo, plus a free tier
- Works in the widest range of editors, including Visual Studio, Xcode, JetBrains, Neovim and Eclipse
- Model picker includes Claude Opus 5.5 and Sonnet 5.5, GPT-6.1 Sol, Gemini and Grok
- Cloud agent and code review built into GitHub issues and pull requests
- You can assign tasks to third-party agents such as Claude and OpenAI Codex from GitHub
Watch out
- Usage-based AI Credits make heavy agent use harder to budget than a flat plan
- The Copilot Free tier caps completions at 2,000 a month
- Business and Enterprise admins must set usage limits and decide on extra paid usage
- Agent quality depends on which model you choose and how many credits it burns