Demos · February 19, 2026
Gemini 3.1 Pro Demos
Every demo on this page was coded entirely by Gemini 3.1 Pro — Google's newest flagship model, released today. No human-written code. We prompted the model via the API, iterated on errors, and shipped what it built.
Read our full analysis: Gemini 3.1 Pro Is Here: Google's Reasoning Just Jumped 2.5×
Starlink Satellite Tracker
An interactive 3D globe showing real-time positions of all Starlink satellites. Rotate, zoom, and check if any are passing your location right now.
Brutalist City Builder
Build a Soviet-inspired brutalist cityscape on a 16×16 grid. Sliders for height, width, window density, and building style. Day/night toggle with glowing windows, fog, and dramatic lighting.
SVG Art Gallery
10 intricate SVGs generated from text prompts — pelican on a bicycle, NYC skyline, steampunk watch, animated Ferris wheel, and more. Pure code art at any resolution.
More demos coming today. We're prompting Gemini 3.1 Pro for each one in real-time.
How We Built These
Each demo was generated by sending prompts to the gemini-3.1-pro-preview model via Google's Generative Language API. No code was written by hand.
Our process: prompt → test → send errors back to the model → iterate. Typically 3–5 rounds per demo. The model handles everything: HTML structure, JavaScript logic, WebGL/Three.js rendering, API integration, and responsive design.
This is what "vibe coding" looks like at the frontier. These aren't cherry-picked successes — they're the first attempts from launch day.