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What Is v0? (2026 Answer)
v0 (Agentdex profile) is an AI agent from Vercel that builds web apps from plain-English prompts. You describe what you want, and v0 writes the code, runs it in a sandbox, shows a live preview and deploys it to Vercel. It started in 2023 as a tool for generating UI components and is now a full-stack agent that can work on real projects through GitHub. This guide explains what v0 does, how it works, what it costs and who it suits, as of October 24, 2026.
Key Takeaways
- v0 is Vercel's AI agent for building and editing web apps through chat, with Next.js and React as its strongest stack.
- Code runs in a Vercel Sandbox, a full Node.js environment that can run server code, API routes and database connections.
- It connects to GitHub through branches and pull requests, and deploys to Vercel.
- Pricing: a Free plan, Plus at $30 per user per month, Business at $100 and custom Enterprise, with usage billed in credits.
- You own the code it generates and can export it, but you are responsible for reviewing it.
What v0 does
v0 turns prompts, screenshots and designs into working web applications. Typical projects include landing pages, dashboards, internal tools, SaaS prototypes and AI-powered apps. It has the most expertise in Next.js, React, Tailwind CSS, shadcn/ui and the AI SDK, and Next.js is the default framework, though other frameworks are possible.
You can start in several ways:
- Type a prompt describing the app
- Upload a screenshot or mockup, or import a Figma design
- Import an existing GitHub repository
- Browse the v0 community for projects to learn from
How v0 works
The agent
v0 is an agent, not just a code generator. Beyond writing files, it can search the web, use a browser and take screenshots to check its work, fix errors automatically and run terminal commands. Terminal access has three permission modes (Ask, Auto and Full), so you decide how much it can do without asking.
The sandbox
Each chat runs in its own Vercel Sandbox, a virtual machine with a full Node.js environment that supports pnpm, npm, yarn and bun. It replaced v0's older browser-only preview, so you can test server code, API routes and database connections before you deploy. The sandbox filesystem persists, and each sandbox has a maximum lifetime of 24 hours.
GitHub workflow
When you connect GitHub, v0 creates a private repository, works on branches and gives each branch a preview deployment. It shows CI checks, respects branch protection and publishes by creating and merging a pull request. It can also help fix merge conflicts and failing checks. This makes v0 workable for developers who want changes reviewed like any other code.
Integrations
- Databases and storage: Supabase, Neon, Upstash and Vercel Blob, plus Snowflake for data apps.
- AI: the Vercel AI Gateway by default, plus providers such as fal, Deep Infra and xAI.
- Payments and services: Stripe and other Vercel Marketplace integrations.
- MCP servers: bring your own, or use presets such as Linear, Notion, Sentry and Context7.
Design Mode and mobile
Design Mode lets you adjust visual details without spending prompts on every change. There is also a v0 iOS app for prompting, previewing and managing projects from your phone. Note that v0 builds web apps; the iOS app is for using v0, not for building native mobile apps.
What v0 costs
Plan | Price (Oct 2026) | What you get |
|---|---|---|
Free | $0 | $5 one-time credits for new users, 7 messages a day |
Plus | $30/user/month | $30 monthly credits per user, $2 daily login credits, all models, team features |
Business | $100/user/month | Plus features with training opt-out by default |
Enterprise | Custom | SAML SSO, RBAC, priority access, SLAs |
Credits are spent per message based on the model and tokens used. v0 Mini is the cheapest model and v0 Max Fast the most expensive. v0 is billed separately from Vercel hosting. For the full breakdown, see our v0 pricing guide.
Who v0 is for
Good fit:
- Developers and designers who work in React and Next.js and deploy on Vercel
- Indie hackers who want a polished front end quickly, then real code they can keep
- Teams that want AI-built changes to go through GitHub pull requests
Weaker fit:
- Non-technical founders who want hosting, database and auth managed in one place with no setup; Lovable and Bolt are closer to that
- Native mobile apps; look at Replit (Agentdex profile) or Bolt (Agentdex profile), which support Expo
- Large existing codebases outside the Next.js world, where an AI editor like Cursor (Agentdex profile) or a terminal agent like Claude Code (Agentdex profile) is a better fit
v0 vs other AI app builders
Tool | Strength | Backend | Paid plans from |
|---|---|---|---|
v0 | Polished Next.js apps, GitHub PR workflow | Connect Supabase, Neon, Upstash and others | $30/user/month |
Full-stack web apps for non-developers | Built-in backend | $25/month | |
Bolt | Fast browser-based builds, Expo mobile | Bolt Cloud | $18/month billed annually |
Cloud IDE plus agent, web and mobile | Built in | $20/month ($18 annually) |
For a wider comparison, read our guide to the best AI app builders or our list of Bolt.new alternatives.
Limits and trade-offs
- Usage costs vary. Long chats and big projects use more tokens per message, so heavy work on v0 Max can burn through credits.
- Vercel-first. You can export code and deploy elsewhere, but previews, environment variables and deployments work best on Vercel.
- Review is still your job. Vercel says generated output may contain bugs or resemble other people's code, and you are responsible for checking it before commercial use.
- Web only. v0 builds responsive web apps, not native iOS or Android apps.
How to get started with v0
- Sign up at v0's site and start on the Free plan.
- Describe one small, specific feature rather than a whole product.
- Check the preview, then refine with follow-up prompts or Design Mode.
- Connect GitHub once you have something worth keeping.
- Deploy to Vercel and upgrade to Plus if you need more credits.
FAQ
What is v0 used for?
v0 is used to build web apps, landing pages, dashboards and prototypes from prompts, screenshots or Figma designs, mostly in Next.js and React.
Is v0 free?
There is a Free plan with a one-time $5 credit for new users and a limit of 7 messages a day. Paid plans start with Plus at $30 per user per month.
Who makes v0?
v0 is made by Vercel, the company behind Next.js and the Vercel hosting platform.
Do I own the code v0 generates?
Vercel says it does not own code generated from your prompts. You can export it or sync it to GitHub, but you are responsible for checking it is suitable for your use.
Can v0 build mobile apps?
v0 builds responsive web apps. It has an iOS app for using v0 on your phone, but it does not build native mobile apps.
Written by Agentdex Editorial. Agentdex is an independent directory reviewing AI coding tools; we are not affiliated with the companies mentioned. Prices and features are as of October 24, 2026, from official sources linked above. Always confirm on the vendor's site.