These are the two dominant shapes of AI-assisted development and they are complements more often than substitutes.
Cursor is a fork of VS Code with the model wired into the editing surface. Tab completion that predicts multi-line edits and jumps you to the next one, inline edit on a selection, a chat pane that sees your open files, and an agent mode that has become genuinely capable. The value is that it lives where you already are: your extensions, keybindings, themes and muscle memory all survive.
Claude Code is a terminal agent. You describe the outcome, it explores the repository, reads the files it needs, makes the edits, runs the tests, reads the failures and iterates. There is no editor. That absence is the design: the agent is not augmenting your typing, it is doing a unit of work while you review the diff.
Cursor wins on the tight loop — you know the change, you want it typed correctly, you want the next edit predicted. That is most of most days, and Cursor's completion is still the best implementation of it.
Claude Code wins on the wide loop — refactor this across forty files, work out why this test is flaky, implement this feature from the issue, upgrade this dependency and fix the fallout. Tasks where the hard part is navigation and iteration rather than typing.
If you must pick one: pick Cursor if you spend your day in an editor and want leverage on your own edits. Pick Claude Code if you're increasingly delegating whole tasks and reviewing results.