Hasso generates unique websites, extracts brand design systems, and ships code changes autonomously — every file you create is yours to keep.
From a sentence to a shippable site — in four steps, in real time.
Type your prompt into Hasso /build. No wireframes. No templates. Just describe the site and hit build.
Your prompt routes through Cloudflare to Anthropic's Claude API. Code streams back in real time. Groq powers the free tier via Llama.
HTML, CSS, and JS appear in real time as the model writes. You watch your site assemble itself in the browser.
Clean HTML, CSS, and JS. No dependencies, no frameworks, no Hasso lock-in. Host anywhere. Give it to a client. It's yours.
Unique site every time — desktop and mobile. Export clean HTML, host anywhere, forever.
From Pythm Mini on the free tier to Krator 5 at the frontier.
Drop a URL. Hasso pulls colors, fonts, spacing — ready to use in /build.
Monjo runs two Anthropic frontier models simultaneously on your codebase — one sandboxed for reasoning and planning, one with full terminal and system access for execution. This workflow doesn't exist anywhere else. Built for developers only.
Every plan ships clean code you keep forever. Upgrade when your work demands it.
See full pricing & all plans →