> The developers voted with their feet and didn’t use Copilot.

This was true in January -- since then, the Copilot CLI team has spent countless hours with engineering leaders and the biggest Claude Code users at the company to understand Copilot's shortcomings, define evals to properly test them head-to-head, and close the gap between the products.

The result? Claude Code usage was organically decreasing and Copilot CLI usage was organically increasing -- when this announcement was made, internal Copilot CLI usage had been greater than Claude Code usage for weeks!