Windsurf

ide

This item was not updated in last three versions of the Radar. Should it have appeared in one of the more recent editions, there is a good chance it remains pertinent. However, if the item dates back further, its relevance may have diminished and our current evaluation could vary. Regrettably, our capacity to consistently revisit items from past Radar editions is limited.

Mar 2026

Hold

Windsurf (formerly Codeium's AI IDE) has been through a turbulent acquisition saga. Cognition AI (makers of Devin) acquired it for ~$250M in December 2025. Its future as a standalone product is uncertain.

Why It's on Hold

Windsurf launched in late 2024 as a compelling Cursor alternative with a generous free tier and strong "Cascade" agentic mode. Then the acquisition drama began:

April 2025: Rebranded from Codeium to Windsurf
May 2025: OpenAI agreed to acquire Windsurf for $3B
July 2025: The OpenAI deal collapsed
Late 2025: Google struck a $2.4B licensing/talent deal, poaching Windsurf's CEO
December 2025: Cognition AI (Devin) acquired Windsurf for ~$250M — a fraction of the earlier valuations
Price raised from $15/mo to $20/mo, eliminating its main cost advantage over Cursor

Windsurf still has strong metrics (1M+ active users, 59% of Fortune 500, ranked #1 in LogRocket AI Dev Tool Power Rankings Feb 2026), but the ownership churn and unclear product roadmap under Cognition make it risky for new team adoption.

The Cognition merger could be transformative — combining an autonomous agent (Devin) with an AI IDE (Windsurf) is strategically interesting. But until the integration story is clear, Cursor and Copilot are safer bets.

Key Characteristics

Property	Value
Status	Acquired by Cognition AI (Dec 2025)
Pricing	Free tier, Pro $20/mo
Base	VS Code fork
Agent	Cascade
Alternatives	Cursor, GitHub Copilot, Zed
Website	windsurf.com

Feb 2026

Adopt

Windsurf has risen to the top of AI IDE rankings in early 2026, thanks to continued aggressive feature development — particularly Arena Mode for model comparison, Plan Mode for safer agentic execution, and parallel multi-agent sessions.

Why It Moved to Adopt

Windsurf topped the LogRocket AI Dev Tool Power Rankings in March 2026. Key features that pushed it ahead:

Arena Mode: Side-by-side comparison of two models with hidden identities — you vote on which response is better, building a personalised preference dataset. This is unique to Windsurf and helps teams calibrate which models to trust for which tasks.
Plan Mode: Before making changes, Windsurf's Cascade agent reads the codebase, proposes a plan, and asks for approval. This dramatically reduces agentic surprises.
Parallel agents: Multiple Cascade sessions with separate Git worktrees, enabling true concurrent development on the same codebase without conflicts.
Flow: Windsurf's persistent context mechanism — the AI remembers what it's done and why across a session, reducing repetition and context loss.

For Engineers New to AI IDEs

Windsurf's free tier remains one of the most generous in the category. The Plan Mode feature is particularly valuable for newcomers: it shows you what the agent is about to do before it does it, building confidence and catching mistakes before they happen.

Getting Started

Download from windsurf.com
Sign up for a free Codeium account
Open your project, use the Cascade panel, and try typing a feature request

Key Characteristics

Property	Value
Pricing	Free tier, Pro plans available
Base	VS Code fork
Agents	Cascade (single and parallel)
New features	Arena Mode, Plan Mode, parallel worktrees
Provider	Codeium