Windsurf

Windsurf is an AI-native IDE from Codeium, positioned as "the world's first agent-centric development environment." Unlike the VS Code + Copilot combination, Windsurf deeply integrates AI capabilities into the editor's core, implementing collaborative programming between AI and developers through its Cascade feature—AI not only provides code completion but also understands project context, executes multi-file modifications, runs commands, and debugs code. Windsurf's core feature is the Cascade system: it combines Copilot-style real-time code completion with ChatGPT-style conversational programming, and can autonomously execute multi-step tasks. For example, users can say "add authentication middleware to this API and update related tests," and Windsurf automatically identifies relevant files, writes changes, runs tests, and reports results. By 2026, Windsurf supports mainstream languages and frameworks, with enterprise-grade security features (code never leaves the local environment). Windsurf's free tier provides basic AI features; Pro at $15/mo offers advanced models and unlimited usage. Compared to Cursor ($20/mo), Windsurf is slightly cheaper and offers a smoother Agent collaboration experience. For developers seeking an AI-native development experience, Windsurf is a worthy choice, especially for scenarios requiring deep AI involvement in multi-file modifications and complex task execution.