What is GitHub Copilot?
Copilot's real advantage is not its model quality; competitors match or beat it depending on the week. It is distribution and the GitHub graph. Built by GitHub (a Microsoft subsidiary), it launched in 2022 as autocomplete and is now inline suggestions, chat, autonomous agents, and issue-to-pull-request flows. The reason to pick it over a sharper standalone tool is that it already sees your issues, PRs, Actions, and review history, and it ships with IP indemnification a procurement team will ask about. Pick Copilot when that integration and that paperwork outweigh raw capability. Pick a specialist when they do not.
Key features
- Inline completions: context-aware suggestions, unlimited on paid plans and never billed against credits
- Copilot Chat: in-IDE assistant for questions, debugging, and explanations
- Agent mode: autonomous task completion that edits files, runs terminal commands, and iterates
- Multi-IDE support: VS Code, JetBrains, Neovim, Vim, Xcode, Eclipse, and more
- Model selection: GPT, Claude (Opus, Sonnet, Haiku), Gemini, and others in one picker, so model lock-in is not the risk it looks like
- GitHub integration: the actual moat. Issues, PRs, Actions, and code review wired in by default
Who is it for?
Teams already living inside GitHub, enterprises that need policy controls and IP indemnity, and polyglot developers who switch IDEs and do not want to relearn an assistant each time. The pull is gravitational, not technical: if your work already happens in GitHub, Copilot wins on day one because the context is already there. If it does not, that advantage evaporates and a specialist coding tool is the better call. The free tier (2,000 completions a month) is enough to settle which case you are in before paying.
Pricing
Copilot moved to usage-based billing on June 1, 2026, so every plan now runs on GitHub AI Credits metered against token use (GitHub Copilot plans, 2026-06-27). Free is $0 (2,000 completions, auto model only). Pro is $10/mo with 1,500 credits. Pro+ is $39/mo with 7,000 credits, premium models including Opus, and audit logs. Max is $100/mo with 20,000 credits for all-day agent work. Code completions stay unlimited and never draw credits; chat, the CLI, and agents do, and turning on the 1M-token context window or higher reasoning spends them faster. See the full June 2026 review for the credit math by tier.