Cursor

Anysphere builds Cursor, a code editor designed around AI assistance, where the model reads an entire repository and edits across files rather than completing single lines in isolation. Its agent mode plans and carries out multi-step changes, runs commands and reviews its own diffs, which made the editor one of the fastest-growing developer tools of the current AI wave and a standard part of many engineering workflows. The company describes itself as an applied research lab and trains its own models alongside the product.