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Vibe-coding startup Windsurf launches in-house AI models


Windsurf, a startup the develops popular AI coding tools, announced the launch of its first-ever frontier AI models.

According to Windsurf, SWE-1, the largest and most capable AI model of the bunch, performs competitively with Claude 3.5 Sonnet, GPT-4.1, and Gemini 2.5 Pro on internal programming benchmarks. Most of these startups, including Windsurf, have traditionally relied on AI models from OpenAI, Anthropic, and Google to power their applications. Windsurf notes in a blog post that while other models are good at writing code, they struggle to work between multiple surfaces — as programmers often do — such as terminals, IDEs, and the internet.

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