v0 is Vercel's AI agent that generates full-stack React/Next.js apps for the Vercel ecosystem; Pubner is an AI-driven CMS on Laravel that ships the client site, the admin panel, and the content workflow in one stack. v0 does export code — the real gap is everything after the code: a client admin, content management, and running twenty client sites without twenty repos.
What is v0?
v0 is Vercel's AI building platform. In 2026 it's no longer a UI generator — it's agentic full-stack: plans the app, wires the database, deploys, with design systems and an iOS app. The output is React/Next.js, at home in the Vercel ecosystem. Pricing is team-packaged: Team $30/user/month, Business $100/user/month — the ~$20 solo plan has quietly disappeared. What v0 doesn't give you: a CMS or admin panel for a non-technical client, or an agency layer for managing many sites.
What is Pubner?
Pubner is an AI-driven agency CMS environment on Laravel. One stack: API, admin panel, and the client site in Twig, plus a Hub for dozens of isolated client sites, custom domains so clients see their own URL instead of pubner.com, and RBAC. The AI copilot works over your tenant's data — drafts content, manages robots.txt and SEO files, builds pages in a conversation with live preview. Flat $20/month, and Full Export hands you your Twig themes and all your content as portable JSON — clean code and data, no Pubner lock-in.
v0 vs Pubner: side by side
| v0 | Pubner | |
|---|---|---|
| AI | ✅ agentic full-stack generation | ✅ copilot over your data + conversational builder |
| Code export | ✅ React/Next.js | ✅ Twig themes + portable JSON, no lock-in |
| Runs best on | Vercel ecosystem | Pubner's managed hosting |
| Admin panel for the client | ❌ build it yourself | ✅ built in |
| Content management | ❌ code-level | ✅ CMS: records, categories, drafts |
| Many client sites | 🟡 one project at a time | ✅ Hub, isolated tenants, RBAC |
| Pricing | Team $30/user/mo (solo plan gone) | $20/month flat |
| Stack | React/Next.js | Laravel + Twig |
When v0 is the better choice
v0 wins when you're building a product, not a client website. React/Next.js teams prototyping app UIs, building on design systems, deploying to Vercel — that's v0's home field, and Pubner doesn't play on it. If your stack is React and your deliverable is an application, use v0.
When generated code isn't the finish line
For client work, the code is maybe half the job. The other half: the client updates their own news page without calling you, a junior edits content without touching production, and you oversee fifteen such sites from one place. v0 generates and deploys — then hands the last mile back to you. Pubner starts where v0 stops: admin panel, content workflow, Hub, RBAC — and its AI copilot works inside that, over the client's actual data. And if you leave, Full Export hands you your Twig themes and content as portable JSON — clean code and data, with no lock-in tying you to one vendor's cloud.