v0 by Vercel has matured from a simple UI-generation demo into a genuinely capable AI coding assistant that can scaffold entire full-stack apps, wire up databases and APIs, and push straight to production via Vercel. Its strength lies in speed: going from a text prompt to a deployable, styled Next.js app with shadcn/ui components in minutes is still one of the most compelling demos in AI-assisted coding. The tradeoff is that it works best within Vercel's opinionated stack, and while iteration and design-mode tweaks are smooth, non-trivial business logic or edge cases still need a developer's hand. For teams already on Vercel/Next.js, it's an easy productivity multiplier; for others, it's a great prototyping tool with some lock-in.
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