Windsurf
Agentic IDE featuring Cascade deep research agent, providing full codebase understanding and autonomous development capabilities. Acquired by Cognition (makers of Devin) on July 14, 2025 after Codeium rebranded the product to Windsurf in April 2024. $82M ARR at acquisition; $100M+ ARR by Q3 2025; combined Cognition+Windsurf ~$492M ARR (April 2026).
Overview
Windsurf is an agentic IDE acquired by Cognition (the makers of Devin) on July 14, 2025. It was previously known as Codeium before the product's April 2024 rebrand to Windsurf. Its flagship feature is the Cascade deep-research agent, which traverses the entire codebase, builds a mental model of architecture and dependencies, and performs autonomous multi-file edits. Windsurf reached $82M ARR at acquisition, passed $100M ARR by Q3 2025, and the combined Cognition+Windsurf portfolio reports ~$492M ARR (April 2026).
Cascade Deep Research
Cascade is Windsurf's standout feature—a deep research agent that can traverse your entire codebase, understand architecture patterns, and make intelligent multi-file edits. It operates with a high degree of autonomy while maintaining accuracy and context.
Use Cases
Complex feature development requiring deep codebase analysis, large-scale refactoring, architecture planning, and autonomous programming tasks.