Someone working at Google DeepMind has vibe-coded a pseudo-browser called Flash-Lite Browser powered by the Gemini 3.1 Flash-Lite model, and it might be an example of where we are heading with web browsing and vibe coding.
Google DeepMind on X (Twitter) shared a vibe coding project built by Ben Cobley, a Creative Technologist at Google DeepMind. The Flash-Lite Browser can create each page in real-time as you click, search, and navigate. It runs inside Google AI Studio, available for free to try. It's one of the more tangible demonstrations of what real-time, prompt-driven web generation could look like at scale, and it can draw serious attention from developers and product teams.
A Pseudo-Browser That Builds as You Type
The Flash-Lite Browser lets you type in a prompt for the page you want, and it gets built live right in front of you. According to the original demo brief, examples include a plant care page generated from a single prompt, an annoying website, and a functional Gemini chat interface. It's less a replacement for professional web development and more a proof of concept for collapsing the distance between an idea and its first visible form.
You can test the app for free in Google AI Studio. That open, no-cost access so anyone can give it a try if you are curious enough to experiment.
Testing the Flash-Lite Browser built by Ben Cobley:
Step 1: Click here to open Flash-Lite Browser in Google AI Studio.
Step 2: You can make it full-screen and enter the prompt for the website or dashboard you want to vibe code. Ben Cobley has also added an easter egg where, when you click the top-right menu, you can turn on Google Search grounding.
Step 3: Add your prompt and start experimenting.
Prompt I used: Create a fun, well-animated, retro-style directory and product page for modern AI tools and agents. When I click on a product, it gives me its description and even an option to run that tool/agent in a sandbox.
The Engine Behind It: Gemini 3.1 Flash-Lite
The Flash-Lite Browser is powered by the Gemini 3.1 Flash-Lite AI model, which outperforms Gemini 2.5 Flash by 2.5x in Time to First Answer Token and by 45% in output speed, while maintaining similar or better quality. In practical terms, that's what makes the browser experience feel genuinely real-time rather than sluggish.
Editor's note:
The Flash-Lite Browser is not a Google product, meaning the output can be inconsistent and not of the highest quality. It is a side project built by Ben Cobley and should be treated as a fun experimental project rather than a tool for power users. Anyone can try it and build something fun and interesting in real time. I would recommend that you turn on the Google Search grounding if you want more up-to-date results.
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