Guillermo Rauch
Also known as Vercel, v0
Guillermo Rauch is a developer, founder and the chief executive of Vercel. He began working on web software as a teenager and became a core developer of MooTools. His projects include Socket.IO and Mongoose, and he co-founded Cloudup, which Automattic acquired. At Vercel, he helped create Next.js, released in 2016 to support React web applications. The company introduced v0 in 2023 as a tool that generates interfaces from prompts. Its later work includes the AI SDK and a model family for v0. Rauch’s public writing and product discussions connect web development with the use of AI to create software. These tools are built by teams, with his role joining engineering, leadership and public explanation.
- Now at
- Vercel
Timeline
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Early web years
Learning and contributing to web tools
Rauch began working on web software when he was young and became a core developer of MooTools. He developed an early interest in open software and internet tools. These contributions became the start of a career centered on how developers build applications.
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Before Vercel
Building tools and a startup
Rauch’s earlier projects included Socket.IO and Mongoose. He also co-founded Cloudup, which Automattic acquired. The work connected developer tools with a product company, giving him experience with both shared software and the practical work of making a service for users.
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2017
Explaining the development approach
In a review of 2016, Rauch described work on the company’s tools and Next.js. His public writing explained choices about web development and deployment. It made the ideas behind the products available to developers, alongside the source code and tools they could use.
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2024
Extending the AI SDK
Vercel’s AI SDK 3 added tools for generative interfaces in 2024. The release helped developers connect AI model outputs with application components and interactions. This placed AI within ordinary web development work, with the company providing building blocks for people creating their own products.
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June 2025 onward
Developing models for v0
Vercel introduced a composite model family for v0 in June 2025. Its description combined a language model with retrieval and correction tools for web development tasks. Rauch continues to lead the company as its AI work develops alongside its framework and deployment products.
Sources and credits
Photo: Oynickj, via Wikimedia Commons. License: CC BY-SA 4.0. Source: commons.wikimedia.org. Cropped to a square and resized. Ask us to remove or replace this photo.
