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 this week, noting that "we wanted to pay them for the full capacity." An additional statement on Windsurf's website said: "We are concerned that Anthropic's conduct will harm many in the industry, not just Windsurf."

Here, Mohan's company is collateral damage in Anthropic's rivalry with OpenAI, which has reportedly been in talks to acquire Windsu

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