LANGUAGES Signal 502
Claude Code overtakes GitHub Copilot as most used AI coding tool
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JetBrains' Developer Ecosystem Survey 2026 shows Claude Code now leads AI coding tool adoption at 39%, while GitHub Copilot declines to 21%.
Engineers choosing an AI coding tool now see a clear market shift: Claude Code has become the default for many, while Copilot's lead has eroded. The rapid growth of Codex and open-source OpenCode suggests the landscape is still volatile, so tooling decisions may need frequent revisiting.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Claude Code adoption rose from 18% in January 2026 to 39% in May, July 2026.
GitHub Copilot adoption fell from 29% a year ago to 21% in the same period.
Codex adoption grew from 3% to 16% in the same period, with awareness jumping from 27% to 65%.
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