Why GraceSoft Dropped GitHub Copilot for Claude Code
GitHub Copilot was my default AI coding assistant for a long time. It handled inline completions well and fit neatly into my editor workflow.
In May, I started running Claude Code alongside it. It wasn’t a replacement yet, just a parallel track. For the past few months I’ve used both at GraceSoft, task by task, watching where each one actually wins.
What tipped it
Copilot is strong at fast, local completions: finishing the line or function you’re already writing. Where it fell short for me was anything that spanned more than one file. For example, a change in a service layer needs to ripple into its tests, its callers and its docs.
That’s where Claude Code pulled ahead. It reasons across the codebase, not just around the cursor position. It can also carry out multi-step tasks like refactors, migrations and debugging loops without my having to babysit every intermediate step.
The decision
Three months of A/B testing on real GraceSoft codebases gave me enough signal. I’m dropping Copilot and moving fully to Claude Code. The difference showed up most in two places, handling context across multiple files and completing tasks on its own, rather than in autocomplete quality.
If you’re on the fence, don’t take my word for it. Run your own side-by-side for a sprint or two.
Originally published on DEV.