Cursor is an editor made for programming with AI. It's early days, but right now Cursor can help you with a few things...
Write: Generate 10-100 lines of code with an AI that's smarter than Copilot
Diff: Ask the AI to edit a block of code, see only proposed changes
Chat: ChatGPT-style interface that understands your current file
And more: ask to fix lint errors, generate tests/comments on hover, etc.