Consumes less CPU and RAM than Chromium: Cloudflare launches Kitesurf — a browser for AI agents
Internet infrastructure provider Cloudflare has launched Kitesurf, a cloud browser designed specifically for AI agents.
Internet infrastructure provider Cloudflare has launched Kitesurf, a cloud browser designed specifically for AI agents.
As Cloudflare explains, unlike traditional web browsers built for humans, the browser for AI agents does not take into account visual elements such as themes, bookmarks, or extensions, writes TechCrunch.
A browser designed for AI must manage context windows, performance, token cost, and scalability. It also faces a different threat model, as an AI browser may be vulnerable to attacks such as instruction substitution, etc.
With Kitesurf, AI developers will be able to create software that can navigate websites, fill out forms, and perform other tasks in the browser without having to develop their own browser software.
Cloudflare says the decision to build Kitesurf was made just 12 weeks ago. It runs entirely on the company's serverless platform called Workers. Kitesurf is available for free while in beta on Browser Run , which allows developers to programmatically control and interact with serverless browser instances on the Cloudflare network.
For developers, Cloudflare's main argument is that Kitesurf allows AI agents to use the web more efficiently, consuming less computing power than Chromium, which helps reduce costs.
"Kitesurf is significantly more efficient than Chromium in consuming CPU and RAM resources when performing typical agent tasks, such as creating screenshots or extracting HTML code," the company notes.
The browser itself is built on top of other technologies, including the modular rendering engine from Blitz, the Stylo CSS parser from Firefox, and Boa JS, an ECMAScript engine based on Rust. Everything else runs inside Cloudflare Workers. Despite being a brand new project, Cloudflare says Kitesurf has already passed over 215,000 Web Platform Tests (WPTs), with hundreds more being added every week.
Cloudflare also noted the open source headless Obscura engine on Rust, which inspired the company to develop Kitesurf, and noted that the first prototype was the Obscura engine ported to Workers.
The company said that the browser correctly displays pages such as TodoMVC (a popular benchmark for comparing JavaScript frameworks), as well as Wikipedia, Hacker News, the Cloudflare blog, and most of Cloudflare's own dashboard.
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