Bolt vs v0: tokens, credits and the same blank

Bolt is StackBlitz's builder and runs your project in the browser. v0 is Vercel's and, since its February 2026 rebuild, works inside a Git repository and deploys to Vercel. Both meter usage, both are fast, and both are excellent at executing an instruction they were actually given.

The published numbers at the time of writing, from Bolt's pricing page and v0's:

• Bolt. Free at $0 with a 300K token daily limit and 1M tokens a month. Pro at $25 a month billed monthly, starting at 10M tokens, with unused tokens kept for up to two months. Teams at $30 a month per member.
• v0. Free at $0 with a 7 message per day limit, Design Mode and Vercel deploys, plus $5 of one-time credits for new accounts. Plus at $30 and Business at $100 per user per month, each with $30 of monthly credits per user. Model rates published separately, from $1.20 per million output tokens on v0 Mini to $50 on v0 Max Fast.

On models they take opposite lines. Bolt offers two agents, Standard and Max, and chooses the model behind each, with a third agent, Forge, on open-source models. v0 names its own four models and prices each one.

The short call: decide on runtime and meter, because on the question of what the page looks like they return the same answer, and that answer is Thanor. Three of the SaaS and developer heroes both tools get asked for, each built from a full art direction written as values:

Two meters, and what each rewards#

Both bill for usage, and they reward opposite working patterns.

Bolt rewards concentration. A monthly allowance starting at 10M tokens with rollover means a heavy two weeks followed by a quiet one nets out. What it punishes is a very long conversation on a very large project, because the context travels back through the model on every turn, so message forty costs more than message four even when it asks for less.

v0 rewards restraint in a different dimension. The free plan caps you at 7 messages a day, which is a hard stop rather than a slow drain. On paid plans the lever that moves the bill is the model, not the plan: output on v0 Mini is $1.20 per million tokens and on v0 Max Fast it is $50, a spread of roughly forty times for the same sentence.

That last fact is the most actionable thing on either pricing page. Most people compare products when the cheaper experiment is comparing models inside the product they already have.

• Three sites in a week, then nothing: rollover suits you.
• A few careful changes each day: a daily cap barely registers.
• Long threads on a big project: watch the context cost in both.

Neither meter is better. They are shaped for different rhythms, and yours is knowable from last month's work rather than from a pricing table. Open the calendar, count how many days you actually generated anything, and the answer picks itself.

Bolt against v0, attribute by attribute#

Attributes on the left, because the rows are the decision.

The last row is the only one where the two columns agree, and it is the row that decides what a visitor thinks of the page.

Every row above it is a real trade with a real consequence. An in browser runtime against a repository. Rollover against a daily cap. Per member seats against per user credits. A narrower visual editor against a wider one. Pick whichever answers suit the way you actually work.

The last row is not a trade. It is a hole in both products, put there deliberately, for a reason worth understanding before you spend a week migrating between them.

Comparison articles usually stop at the row above it, because the rows above it are the ones with different answers and different answers make a better table. The row with matching answers is the one that determines whether the finished site looks like it cost $500 or $15,000.

Where the two genuinely part company#

Three places, and none of them is output quality.

• The runtime. Bolt compiles and runs the project inside the browser tab. Nothing to install, instant start, and a ceiling you meet the first time the toolchain needs something unusual. v0 runs the code in a sandbox tied to a real repository, which is more setup and a much higher ceiling.
• The unit. Bolt is trying to hand you a project that lives in Bolt. v0 works on a repository: it can import any GitHub repo, opens a branch per chat and a pull request against main. If you already run an application and want its marketing site or a new screen inside it, that difference matters from the first message.
• The editing loop. Both now let you change the preview directly instead of describing the change. v0's Design Mode reaches typography, color, spacing, borders, radius and shadows. Bolt's newer Select tool covers text, colors and type styles, and uses tokens only when you save. Moving something 8px by asking a model in English is a poor use of a sentence and a credit, so the wider panel is a real difference.

Everything else on the comparison sites is noise. Both write competent React, and both sit on the same shelf as every other builder. Both produce a credible landing page from one sentence. Both will do something reasonable with an ambiguous instruction, which is exactly the problem addressed below.

Settle the three questions above with two free accounts and one weekend on a project you care about, running the same brief through both so the tool is the only variable.

The row where both columns match#

Run a thin brief through both and the two results could be siblings. Centered hero with a gradient behind it. Three feature cards. A soft fade upward as each section enters. A weightless sans at one of four sizes. It is the vibe-coded look, and vibe design is about leaving it without giving up the speed.

That is correct behavior rather than a defect. An underspecified brief has to be resolved by something, and the something is a model reaching for the median of every interface it has read.

Neither company is going to fix this, and the reason is structural. A builder that shipped a strong house style would be useless to the agency applying a client brand, and agencies are where the contract value sits. So both chose to execute any look faithfully and hold no opinion about which look belongs here.

There is a second reason, visible in what neither company publishes. Across roughly 110,000 URLs in the sitemaps of Framer, Webflow, Lovable, Replit, Cursor and Windsurf combined, counted at the end of September 2026:

• easing appears in three URLs.
• cubic-bezier appears in zero.

A builder cannot print the specification, because a specification exact enough to paste works in every competing product and makes the choice of builder the small decision.

So the layer is real and it comes from somewhere else, written as values a machine executes without interpreting. A color rather than a mood, a ratio rather than a vibe, a duration in milliseconds rather than an adverb. Both builders apply that kind of instruction faithfully, which is the whole point: the empty brief is the problem. Two pages where the timing sits in the prompt instead of being left to the model:

The verdict#

• Choose Bolt if you want a whole project running in one tab, if your work arrives in bursts that suit rollover, and if per member pricing is easier to forecast for your team than per user credits.
• Choose v0 if the work lands in a repository you already run, if Vercel is already your deploy path, and if you want the wider visual panel of Design Mode for the small adjustments that make up most of the day.
• Choose neither if you want the model working in your own editor with your own toolchain. Claude Code against Cursor covers that route.
• Do not choose on output. On a thin brief they converge, and on a precise brief both execute well. The migration costs a week and changes nothing a visitor notices.

What changes what a visitor notices is the brief: a palette in hex, a type scale at a stated ratio resolving to a stated size, motion as cubic-bezier(0.22, 1, 0.36, 1) at 620ms instead of the word smooth, and a section order with a reason behind each position. Written as design tokens in the W3C format, the palette and the type scale become a file both tools can read.

That is portable in a way no project file is. Written once, it runs in Bolt, in v0, in Lovable, and in whatever comes next, because it describes the site rather than the software that assembled it.

The honest summary: this is a workflow question dressed as a design question. Answer the workflow half on your own project, in a weekend, for nothing. Answer the design half upstream of both tools, once, and stop re-answering it every time you open a chat box.

Copy the prompt of Vesperion, which is free with an account, and run it through Bolt and v0 on their free plans, so the tool is the only variable. Then open Caravan to see the same depth of specification on a SaaS hero. The plans for the full library are on the pricing page.