Windsurf is an AI-powered IDE developed by Codeium, featuring Cascade — an agentic AI system that can plan and execute multi-step coding tasks across an entire codebase. Unlike assistants that respond to individual prompts, Cascade maintains full awareness of your project structure, terminal state, and recent changes to autonomously implement features, fix bugs, and refactor code end-to-end. Windsurf also includes real-time AI autocomplete, inline chat, and deep integration with popular language servers, making it one of the most capable agentic development environments available.
Cascade agent — plans and applies coordinated multi-file edits.
Context awareness — tracks your actions to stay in sync with the codebase.
AI autocomplete and chat — inline suggestions plus a built-in assistant.
Multi-model support — works with leading frontier models.
Letting an AI agent implement a feature across multiple files.
Getting context-aware autocomplete while writing code.
Asking the editor to debug or explain existing code.
Developers who want an AI agent that can plan and carry out multi-step coding tasks.
Engineers who prefer an editor that keeps context as the codebase changes.
Teams that want AI autocomplete, chat, and an agent in a single IDE.
Free tier with limited AI usage.
Paid plans add higher limits and more capacity.