Windsurf

Windsurf is an AI-powered code editor that, alongside Cursor, represented the first generation of well-established AI coding tools aimed at developer productivity.

It is mentioned by speakers at Inside YC's AI Playbook as part of the foundational cohort of AI coding assistants that were already mature products by the time newer agentic tools such as Claude Code began to emerge. Inside YC's AI Playbook, 4:06