Review Summary
Windsurf from Codeium is the most powerful agentic AI IDE — Cascade agent autonomously runs multi-step tasks, debugs, and fixes errors in a chain without constant intervention.
About This Product
2022
Mountain View, United States
Varun Mohan (CEO) and Douglas Chen (CTO) of Codeium
Detailed Review
Windsurf is the IDE from Codeium — a company founded by Varun Mohan and Douglas Chen in 2022, both Stanford graduates with AI and software engineering backgrounds. Codeium started as a free GitHub Copilot alternative, accumulating millions of developer users before pivoting to building its own IDE.
Windsurf was launched in late 2024 with the Cascade agent — its biggest differentiator from Cursor. Cascade doesn't just suggest code; it autonomously runs multi-step workflows: reads the entire codebase, plans the implementation, writes code across multiple files, runs tests, reads errors, and self-corrects — all in a continuous sequence without the developer needing to approve each step. This is genuine "agentic coding."
Windsurf understands the codebase more deeply through full repository indexing — not just open files. When asked "why is this function slow?", Cascade traces through the entire dependency chain to find the root cause. AI awareness of the whole project helps avoid duplicate code and ensures consistency with existing conventions.
Current Developments (2025–2026)
Windsurf 2.0 with multi-agent collaboration — multiple Cascade agents working in parallel on different parts of the codebase — is under development. Codeium reports Windsurf has reached 500,000 MAU within months of launch. Codeium's own model (not based on Claude or GPT-4) is being developed to reduce reliance on third-party APIs. Google Ventures led a Series C valuing Codeium at $1.25 billion.
Strengths
- Cascade agent runs multi-step tasks without prompting: creates a feature → tests → fixes bugs continuously
- Flows mode implements complex features from a single short description — AI plans the details itself
- Separate Write and Edit modes give you control over when AI modifies code automatically — no accidental overwrites
- Free at quality matching Cursor Pro — the best option for developers who don't want to pay for an AI IDE
Areas for Improvement
- Cascade sometimes modifies too many files at once, making it hard to track what the AI changed
- Community and plugin ecosystem is significantly smaller than VS Code — some extensions are incompatible
- Cascade speed can be slower than Cursor on tasks requiring many sequential AI calls
Verdict
Windsurf is an excellent choice for anyone needing a powerful tool in the AI Tool category. Founded in 2022 by Varun Mohan (CEO) and Douglas Chen (CTO) of Codeium, this product has undergone years of development and continuous improvement. With a rating of 9.2/10, it ranks among the best in its segment. We encourage you to try the free version before deciding to upgrade.
