v0 by Vercel is an AI agent for building web apps. You describe what you want in natural language (optionally attaching screenshots or Figma-style references), and it produces working code you can preview, edit, and ship. It is developed by Vercel, the company behind Next.js and the Vercel hosting platform.
The current version is the post-February 2026 "new v0", which changed the product substantially. What used to be mainly a UI-component generator is now a full-stack agentic development platform: you can import GitHub repositories and work with branches and pull requests, use a VS Code-style editor, run full-stack apps in a sandbox runtime, organize work into Projects and Folders, and make visual edits through Design Mode.
Under the hood the assistant runs on a family of models exposed as v0 Mini, Pro, Max, and Max Fast. Billing is token-based: input and output tokens are converted into credits, with per-model rates that scale from Mini up to Max Fast.
Pricing has a free tier at $0/month limited to about 7 messages a day; new users get a one-time $5 credit grant that does not renew, while existing free-tier users continue to receive monthly credits. Paid plans are Plus at $30 per user/month and Business at $100 per user/month, with a custom-priced Enterprise plan adding SSO, RBAC, and SLAs. A legacy Premium plan at $20/month is still referenced for some existing users but does not appear on the current pricing grid. Purchased credits expire one year after purchase, and unused monthly credits on paid plans roll over for one additional month.
The main limitation is cost predictability: token-based metering makes it harder to know in advance how much a session will cost, and heavy full-stack work can burn through credits quickly. The free tier's roughly 7 messages a day and one-time new-user credit grant are enough to try the platform but not to build seriously, and the platform is tightly oriented toward the Vercel and Next.js ecosystem.
v0 is a good fit for developers and product teams already on Vercel who want to go from prompt to a deployed, full-stack app quickly, and for designers or founders who want to prototype real, working software rather than static mockups.
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