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v0-1.5-md & v0-1.5-lg now in beta on the Models API

Vercel's v0 now supports 512K context. Developers can build larger, more complex AI features without model-swapping.

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Why it matters

Vercel is expanding v0's model capabilities on its API layer, enabling developers to build AI-powered products with longer context windows. This matters for founders scaling AI features without managing multiple model providers.

The key facts

8 to know
  1. v0-1.5-md: 128K token context now in beta

  2. v0-1.5-lg: 512K token context now in beta

  3. Available on Vercel Models API

  4. Released June 9, 2025

  5. v0-1.5-md model: 128K token context

  6. v0-1.5-lg model: 512K token context

  7. Beta availability on Vercel Models API

  8. Published June 9, 2025

Go to the source

Vercel Blogvercel.com

Publisher excerpt: Beta access is now available for (128K token context) and (512K token context) on our Models API.v0-1.5-mdv0-1.5-lg For full details and examples, see the Models API docs:
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