Who Owns Windsurf? The 2025 Acquisition Timeline
OpenAI tried to buy Windsurf for $3B. Microsoft blocked it. Google paid $2.4B for the talent. Cognition got the product.
Updated 17 April 2026
TL;DR
- May 2025 OpenAI announces $3B Windsurf acquisition
- Jul 2025 Deal collapses - Microsoft IP rights dispute
- Jul 11 Google pays $2.4B for tech license + hires founders + ~40 staff to DeepMind
- Jul 14 Cognition (Devin) acquires Windsurf product, brand, ~210 employees
- 2026 Windsurf ships under Cognition: SWE-1.5, Wave 13, $20/mo Pro
# Full Timeline
Codeium founded
Varun Mohan and Douglas Chen found Codeium, building AI coding assistance tools. Early focus on enterprise customers with privacy-first deployment options.
Codeium rebrands to Windsurf
Codeium launches its AI code editor product under the name Windsurf, adopting the wave/surf metaphor for its Cascade agentic system. Pro pricing at $15/mo.
OpenAI announces ~$3B acquisition
OpenAI announces a deal to acquire Windsurf (Codeium) for approximately $3 billion. The deal is intended to give OpenAI a direct IDE presence alongside competitors using OpenAI's own API. The news causes significant industry reaction.
Microsoft IP dispute emerges
The acquisition hits a significant obstacle: OpenAI's exclusivity agreement with Microsoft contains IP provisions that create complications for how Windsurf's technology could be licensed or used within the OpenAI + Microsoft ecosystem. Negotiations stall. The two sides cannot reach agreement.
Google announces $2.4B licensing deal
OpenAI's exclusivity window expires. Within hours, Google DeepMind announces a $2.4 billion deal to license the Windsurf/Codeium technology and hires Varun Mohan, Douglas Chen, and approximately 40 senior researchers. The talent and IP move to DeepMind, which intends to integrate the technology into its own AI development tools.
Cognition acquires Windsurf (product + team)
Three days after the Google deal, Cognition AI announces it has acquired the Windsurf product, brand, and approximately 210 remaining employees. Cognition, maker of Devin, now owns the IDE product while Google owns the core model technology license and the founding team. Cognition announces plans to merge Devin's autonomous agent capabilities with Windsurf.
Product continuity under Cognition
Windsurf continues shipping under Cognition ownership. The product maintains stability. Users continue on existing subscriptions. Cognition begins integrating Devin's task management and autonomous agent architecture. Wave updates continue.
Plan Mode, Arena Mode, Parallel Multi-Agent
Cognition ships Wave 13, adding Plan Mode (separate planning from code generation), Arena Mode (multiple agent strategies compete), and Parallel Multi-Agent Sessions. SWE-1.5 launches on Cerebras hardware at 950 tok/s.
Windsurf raises Pro to $20/mo
Windsurf raises its Pro price from $15 to $20/month, matching Cursor for the first time. SWE-1.5 is offered free to all users for a 3-month promotional period. Enterprise pricing also updated.
Cursor ships Composer 2
While Windsurf was going through acquisition turbulence, Cursor shipped steadily. April 2026 sees Composer 2: 200+ tok/s, 61.3 CursorBench score, improved diff review. Anysphere (Cursor's parent) valued at $9B+.
# Why the OpenAI Deal Collapsed
OpenAI and Microsoft have a complex relationship defined by a multi-year, multi-billion dollar partnership. The core tension: Microsoft provides Azure compute and significant capital; OpenAI provides AI technology exclusivity to Microsoft for certain categories of deployment.
When OpenAI tried to acquire Windsurf (Codeium), the complication was how Windsurf's technology would be licensed and whether it could be offered to third-party IDE users and enterprise customers who were NOT on the Microsoft/Azure stack. Microsoft's IP exclusivity provisions arguably limited OpenAI's ability to license the acquired technology in ways that would have been commercially necessary.
The fundamental issue: Windsurf's value is a broad developer tool. OpenAI needed to keep offering it to all developers, including those on AWS, GCP, and other platforms. Microsoft's agreements made this complicated. Unable to resolve the IP provisions in time, OpenAI walked away from the deal.
# Why This Matters for Users
Windsurf's new direction
- + Under Cognition, Windsurf is integrating Devin's autonomous agent capabilities into the IDE
- + SWE-1.5 was built under this vision: fast iterative agents, not one-shot completions
- + Plan Mode, Arena Mode signal the Devin influence - task management inside an IDE
- - Core research team (Mohan, Chen, ~40 researchers) is now at Google DeepMind, not Cognition
Cursor's position strengthened
- + Anysphere (Cursor) remained independent through the turbulence, raising at $9B+ valuation
- + No acquisition disruption to engineering team or product roadmap
- + Shipped Composer 2 in April 2026 while Windsurf was managing the Cognition integration
# What Didn't Change
Despite the dramatic corporate story, the Windsurf product has maintained continuity:
- + Existing subscriptions migrated without interruption
- + Extensions, settings, and workflows all preserved
- + The product team that built Cascade is largely still at Windsurf/Cognition
- + API compatibility and VS Code fork maintained
The core risk for users is the uncertainty of long-term model development now that the founding research team is at Google DeepMind. SWE-1.5 was built under the old team. Future model generations will be a test of Cognition's research capability.
# Cursor's Parallel Story
While Windsurf was navigating the most complex corporate acquisition story in AI tool history, Anysphere (Cursor) had a quieter but significant year:
# FAQ
Did OpenAI buy Windsurf?+
Who owns Windsurf in 2026?+
Why did the OpenAI Windsurf deal collapse?+
What did Google pay for Windsurf?+
Is Windsurf safe to use under Cognition?+
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