Anthropic Cuts Windsurf’s Claude Access Before OpenAI Acquisition
- In early June 2025, Anthropic unexpectedly revoked almost all of Windsurf's direct access to Claude 3.x AI models, providing fewer than five days' advance warning.
- This event followed reports that OpenAI is negotiating to acquire Windsurf in a deal valued near $3 billion, which Anthropic sees as competitive.
- Windsurf CEO Varun Mohan expressed frustration publicly after Anthropic abruptly cut off nearly all of Windsurf’s access to Claude 3.x models, even though Windsurf had made it clear they were prepared to cover the entire capacity.
- Mohan wrote on X that Anthropic's conduct could "harm many in the industry," reflecting tensions between major AI model providers and app developers.
- This incident highlights risks for AI startups relying on third-party models, suggesting future challenges in the ecosystem as companies vie for dominance.
13 Articles
13 Articles
Anthropic and OpenAI make moves against popular AI apps
Battlelines are being drawn between the major AI labs and the popular applications that rely on them. This week, both Anthropic and OpenAI took shots at two leading AI apps: Windsurf, one of the most popular vibe coding tools, and Granola, a buzzy AI app for taking meeting notes. "With less than five days of notice, Anthropic decided to cut off nearly all of our first-party capacity to all Claude 3.x models," Windsurf CEO Varun Mohan wrote on X …
Anthropic's AI is Writing Its Own Blog - Oh Wait. No It's Not
"Everyone has a blog these days, even Claude," Anthropic wrote this week on a page titled "Claude Explains." "Welcome to the small corner of the Anthropic universe where Claude is writing on every topic under the sun". Not any more. After blog posts titled "Improve code maintainability with Cla...


Popular AI apps get caught in the crosshairs of Anthropic and OpenAI
Battlelines are being drawn between the major AI labs and the popular applications that rely on them. This week, both Anthropic and OpenAI took shots at two leading AI apps: Windsurf, one of the most popular vibe coding tools, and Granola, a buzzy AI app for taking meeting notes. ”With less than five days of notice, Anthropic decided to cut off nearly all of our first-party capacity to all Claude 3.x models,” Windsurf CEO Varun Mohan wrote on …
Shortly after becoming aware of the planned OpenAI take-over of Windsurf, Anthropic almost completely withdraws access to its Claude models from the programming tool. Windsurf apparently made the decision surprisingly. The article Anthropic cuts Claude access for Coding Tool Windsurf after OpenAI deal first appeared on THE-DECODER.de.
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