Cursor vs GitHub Copilot vs Codeium: Which AI Code Editor Wins in 2025? Three years ago, AI code completion meant accepting a gray-text suggestion and hitting Tab. In 2025, it means handing an agent a ticket, watching it edit six files, run the test suite, and open a pull request while you review the diff. The tools have changed shape—and so has the question of which one to use.
The three names that come up most often are Cursor, GitHub Copilot, and Codeium (now branded Windsurf). They are not the same kind of product, which is why “which is best” debates online so often talk past each other. Here’s a breakdown of what each actually is, how they compare on the things that matter day to day, and who should pick which.
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