GitHub Copilot vs Claude Code 4.8: Which Is Better in 2026

Last week, I spent three hours trying to untangle a legacy payment processing module. We're talking about a sprawling mess of callbacks and deprecated API calls spread across 34 files. I tried my usual workflow—GitHub Copilot in VS Code—and found myself playing an exhausting game of whack-a-mole, fixing one file while breaking three others. Then I switched to Claude Code in the terminal, typed out a single paragraph describing the ref