Sourcery vs GitHub Copilot: Review vs Generation

Quick Verdict Sourcery and GitHub Copilot are not really competing for the same buyer. Sourcery is a specialist - a dedicated AI code review and refactoring platform that focuses entirely on making pull requests better. GitHub Copilot is a generalist AI coding platform that bundles code completion, chat, code review, and an autonomous coding agent into one subscription deeply embedded in GitHub. The overlap is real but narrower than it first appears. Choose Sourcery if: your team is Python-heavy and wants the deepest, most idiomatic refactoring feedback available; you use GitLab or self-hosted GitHub; you want affordable dedicated code review at $10/user/month; or you need custom coding guidelines that adapt to your team's preferences over time. Choose GitHub Copilot if: you want a single AI tool for your entire development workflow - code completion, chat, review, and autonomous task execution; your team is already invested in the GitHub ecosystem; or you are an individual developer w