Vercel builds and operates the cloud platform that developers use to deploy, scale, and run web applications — primarily those built with Next.js, the open-source React framework Vercel created and maintains. Developers push code and Vercel handles the rest: global CDN delivery, serverless compute, observability, and security. Customers range from solo developers on a free tier to large enterprises like OpenAI and Under Armour paying for usage-based or per-seat Enterprise plans. Beyond hosting, Vercel sells v0 — an AI tool that generates full web UI from natural language prompts — and the AI SDK, a developer toolkit for building AI-powered applications. The company is now repositioning itself as "agentic infrastructure," meaning its platform is designed to deploy and run software built and operated by AI agents, not just human developers. Revenue comes from platform usage fees, Pro/Enterprise subscriptions, and v0. Its open-source Next.js flywheel gives it organic developer reach that most competitors have to buy with ad spend.