
Windsurf
Agent-first AI IDE with the Cascade agent, now owned by Cognition.
What is Windsurf?
Windsurf is an agentic AI code editor (formerly Codeium) built around the Cascade agent and Codemaps. It was acquired by Cognition, the maker of Devin, in a 2025 deal and is being folded into that product line.
Who is Windsurf best for?
Developers who want a full agent-first IDE with a fast proprietary coding model and deep codebase understanding.
How does Windsurf work?
Cascade reads your whole codebase, plans multi-file edits, and executes them, using Cognition's in-house coding model and Codemaps to navigate large projects.
Pros
- Powerful Cascade agent built into the editor
- Fast in-house coding model
- Codemaps for codebase navigation
- Backed by Cognition's Devin technology
Cons
- Product direction shifting under new ownership
- Branding in flux post-acquisition
- Higher tiers get expensive
- Rapid product changes


