GitHub Copilot was my default AI coding assistant for a long time. It handled inline completions well and slotted cleanly into my editor workflow.
In May, I started running Claude Code alongside it — not as 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: understanding how a change in a service layer should ripple into its tests, its callers, and its docs. That's where Claude Code pulled ahead. It reasons across the codebase rather than just the cursor position, and it can carry out multi-step tasks — refactors, migrations, debugging loops — without me 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 multi-file context handling and agentic task completion — not just 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. Happy to share more specifics on my eval process if there's interest in the comments.
Top comments (0)