Thesys vs SpinBuild

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Thesys compared with SpinBuild
Detail	Thesys	SpinBuild
What it does	The open standard for Generative UI	AI platform for building websites and web apps from plain-language descriptions
Stage	Startup	Not given
Founded	2024	Not given
Based in	US	Not given
Pricing model	Not given	Freemium
Pricing	Free ($0/mo) with 3K API calls/month; Build ($49/mo) with 25K API calls/month; Grow ($499/mo) with 500K API calls/month; Scale (Custom). API calls included; LLM tokens billed separately at provider rates. Reports API: 100 pages free per month, then $0.01 per page.	Starter plan is free forever with no credit card required. New accounts get 250 welcome credits for the first month. Paid plans available with monthly credits that reset on the first of each month and do not roll over. Cost depends on the AI model chosen, thinking level, and work required per reques
Key features	Interactive charts and visualizations Dynamic dashboard generation Real-time UI adaptation Reports and slides generation Multiple LLM support OpenUI Cloud with API key management Style customizations	Support for 11 stacks: Next.js, React, Vue, Svelte, Astro, Preact, Vite, Express, Fastify, Koa, HTML/CSS/JS Choice of AI models in one dropdown including Claude Opus, Claude Sonnet, GPT and hundreds of others Live preview that updates as code is written Code review with per-file approval and diffs One-way sync to GitHub repository you own Private Postgres database per project One-click HTTPS deployment MCP support for Cursor, Codex, Claude Code, Grok Build Kernel-isolated containers for app security Version history with rollback to any previous state
What makes it different	Open standard for Generative UI instead of proprietary solution No markup on LLM pricing - pay provider rates directly Zero data retention on paid plans Interfaces adapt to context and user intent in real-time	Vibe coding: describe what you want instead of writing every line yourself Real full-stack apps with live preview, not just mockups or templates Your code in a GitHub repo you own, yours to keep and run elsewhere Switch AI models in one dropdown to balance speed, capability and cost
Community votes	0	0
DR (Domain Rating by Ahrefs)	60 −3 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	27	1
Citation Flow (Majestic)	40	20
Referring domains (Majestic)	876	3

4 details filled in for both companies.

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