Bolt.new vs v0: AI App Builder Head-to-Head

Bolt.new and v0 are pitched at the same buyer, someone who wants an AI to write and run web application code from a prompt, but they draw the line between “generator” and “runtime” in different places. Bolt runs your app in the browser. v0 hands you components to run somewhere else.

Reading the result

The overall margin is three points, so the round breakdown matters more than the headline. Bolt.new took four of six rounds (full-stack scaffolding, model lineup, ecosystem and deployment, plus the implicit advantage of a runnable environment). v0 took three on component polish, pricing/free tier, and enterprise compliance. Neither result is a blowout, and both tools ship real work.

How to map the rounds to a buying decision

If you want to go from prompt to running app inside a single browser tab (a hackathon build, an internal tool, a weekend prototype where the point is a working URL by end of day), Bolt is the stronger match. Bolt is StackBlitz’s AI-powered app generator that runs entirely in your browser using WebContainer technology, a full Node.js development environment that executes in the browser without backend servers, with live previews as it builds.

Bolt V2 adds Bolt Cloud with built-in databases, authentication, file storage, edge functions, analytics, and hosting, moving Bolt from a code generator into a more complete development platform.

If you’re a frontend engineer inside an existing Next.js codebase and you want polished components you can drop in and keep, v0 is the more defensible pick. The output uses shadcn/ui components styled with Tailwind CSS, which means every generated piece is consistent, themeable, and production-ready.

You describe what you want in plain English (a pricing page, a dashboard layout, a signup form, a multi-page application) and v0 generates production-ready React code using Next.js, Tailwind CSS, and the shadcn/ui component library.

On pricing and the token model

Both tools meter usage, but the meters behave differently. Bolt (formerly Bolt.new) offers a free plan with 1M tokens/month, a Pro plan at $25/month with 10M tokens, and a Teams plan at $30/member/month.

Free plans have a 300,000 token daily limit and 1 million token monthly limit.

v0’s meter is credit-based rather than token-capped. Free is $0/month and includes $5 of monthly credits, deploy to Vercel, edit visually with Design Mode, and sync with GitHub. Premium at $20/month includes $20 of monthly credits, ability to buy more credits, higher upload limits, Figma imports, and access to the v0 API. Team at $30/user/month adds shared credits, centralized billing, team collaboration, and API access.

The catch on Bolt’s side is that most of your token usage comes from Bolt reading, understanding, and syncing your project files, not just your prompts. Larger projects burn more tokens, which is why costs can escalate quickly as an app grows. The catch on v0’s side is that credit consumption scales with model choice and context window, and long conversations cost more even if written prompts stay short.

On the underlying model bets

The two products have made different bets on which LLM does the work. Bolt has standardized on Anthropic’s Claude family: Sonnet 4.6 is now the default model in Bolt, offering the best balance of speed, cost, and reasoning depth for everyday building tasks. As part of this update, Sonnet 4.5 and Opus 4.5 are no longer available. Haiku 4.5 remains available for quick edits and Opus 4.6 for the most complex reasoning tasks. Bolt has since packaged this behind Standard and Max agents so users don’t pick a raw model.

v0 has taken the opposite path and shipped its own line. Under the hood, v0 uses multiple proprietary AI models (Mini, Pro, and Max) fine-tuned specifically for React and frontend code generation. Each model tier offers different quality-to-cost trade-offs, giving users control over how they spend credits.

The practical consequence: v0 produces tighter React and shadcn/ui output because the models were trained for exactly that, and Bolt handles cross-stack prompts (write the API route and the component and wire them together) more completely in a single pass because Claude routes across frontend, backend, and orchestration in the same call.

On corporate trajectory

Both companies are capitalized well enough that continuity is a reasonable one-year assumption. Bolt.new was valued at about $700M in January 2025 following its $105.5M Series B round led by Emergence Capital and GV, with participation from Madrona Venture Group, Conviction, and Mantis. StackBlitz disclosed total funding of $135M as of December 2025.

Bolt.new’s numbers show a product that moved from zero to real scale faster than almost any developer tool in recent memory: $4M ARR in 30 days, $40M ARR by March 2025, and 5 million registered users by May 2025.

v0 is a first-party Vercel product, so its trajectory rides on Vercel’s, and Vercel is the more established of the two vendors. The February 2026 rebuild was a meaningful upgrade for v0. It now imports existing GitHub repositories, runs previews in a sandbox-based runtime that mirrors production environments, and handles server-side features such as API routes. That rebuild narrowed the gap on runnable-preview and full-stack work, but v0 is still frontend-first by design.

One migration event to price into a Bolt decision: as of April 13, 2026, you can no longer select v1 Agent (legacy) when starting a new project. Existing v1 projects continue to work until August 3, 2026, when they’ll be automatically switched to Claude Agent. Teams with older Bolt projects should plan the switch before the auto-migration date.