Bolt.new

What Bolt.new is

Bolt.new is a product from the company StackBlitz that presents itself as a way to create apps and websites by chatting with an AI. Instead of starting from a blank code editor, a user describes what they want and the system produces a working project. The product page lists several starting points: a website, slides, an app or a prototype ^[1].

Where it came from

StackBlitz was founded in 2017 by Eric Simons with his childhood friend Albert Pai ^[2]. Business Insider reported that StackBlitz launched Bolt.new on 3 October 2024 ^[2]. According to that report, roughly 10 employees built it in about three months on top of StackBlitz's WebContainers technology ^[2]. A team that small shipping a new product in a single quarter is part of why the launch stood out; the other part is what happened commercially in the weeks that followed.

How it works

The product page says Bolt routes each task to the model it judges best, balancing quality and cost ^[1]. Different jobs inside a single project — writing a component, fixing an error, adjusting a layout — are not equally hard, so sending all of them to the same model is either expensive or slow. Routing is the answer to that trade-off.

Business Insider reported that the service called Anthropic's Sonnet model to write the code behind a website or app ^[2]. That is the core loop: a request in plain language goes out, code comes back.

Bolt says it automatically tests, refactors and iterates, and the page claims 98% fewer errors ^[1]. Testing means running the code to see whether it does what was asked; refactoring means restructuring code without changing what it does; iterating means going back over the result and trying again. In practice these are the steps a developer would otherwise perform by hand after a first draft of code appears.

Bolt Cloud supplies hosting, databases, user management and authentication, SEO and custom domains ^[1]. Those pieces cover what a project needs after the code exists: hosting serves the site to visitors, a database stores its data, authentication identifies who is signing in, and a custom domain puts the project at an address of its own.

The page says Bolt handles projects 1,000 times larger than before through improved built-in context management ^[1]. Context management refers to how much of an existing project the model can keep in view while working; a larger working memory lets it edit a real codebase rather than only generate a small snippet.

Early traction

According to the Business Insider report, Bolt generated about 1 million dollars of annual recurring revenue in its first week and about another million in each of the next two weeks ^[2]. Annual recurring revenue is a way of expressing subscription income as a yearly rate: it takes what customers are paying over a month or a year and scales it to twelve months, so it describes a run rate rather than cash already collected. Reporting it for a product's first weeks is a way of saying that paying customers arrived very quickly.

Where it sits

Bolt draws on two threads that had been developing separately. One is StackBlitz's work on running development environments in the browser, which Bolt was built on top of ^[2]. The other is the arrival of large language models that can write code from a description, in this case Anthropic's Sonnet ^[2].

What Bolt adds to the second thread is the packaging. Rather than handing generated code back to the user to run and deploy somewhere else, it keeps writing, testing and hosting inside one product, with the cloud pieces — databases, authentication, domains — attached ^[1]. That bundling, together with routing each task to a chosen model ^[1], is the product's stated bet: that many people who want a working app care more about getting one running than about which model wrote which line.