Asyntai vs assistant-ui

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

Asyntai compared with assistant-ui
Detail	Asyntai	assistant-ui
What it does	AI-powered live chat agents for instant customer support 24/7	Open-source React components and runtimes for building AI chat
Stage	Not given	Not given
Founded	Not given	Not given
Based in	EU	US
Pricing model	Freemium	Open source
Pricing	Free plan: $0/month with 50 AI replies, 1 website, 50 crawled pages, 1,000,000 characters. Starter: $39/month ($35/month annual) with 800 AI replies, 2 websites, 250 crawled pages, 3,000,000 characters. Standard: $139/month ($125/month annual) with 15,000 AI replies, 200 voice minutes, 3 websites, 1	The core library is free and MIT licensed. assistant-cloud offers: Free ($0, 200 MAU included), Pro ($50/mo, 500 MAU included plus $0.10 per additional MAU), Enterprise (custom MAU pricing, contact for details).
Key features	AI chat widget for websites Support for Next.js, Fumadocs, and Nextra AI-powered help center with automatic translations Voice agent with phone integration Real-time data integration and custom tools Live chat monitoring and human takeover Multi-language support in 80+ languages Chat analytics and visitor insights Integration with Instagram, Messenger, WhatsApp, Discord, Zapier Support for product cards and dynamic content display	Streaming support for real-time chat output Tool execution and integration Thread persistence and history Voice support Generative UI rendering Message attachments Conversation branching Multi-platform support (React, Vue, React Native, Ink) Runtime adapter support (AI SDK, LangGraph, LangChain) Fully customizable component composition
What makes it different	Answers from your own content with knowledge base integration Works as a single React component with Next.js and other frameworks Help center with AI-drafted articles and auto-translation Voice agent integrated into the same platform Support for 80+ languages out of the box	Works with any backend through pluggable runtime adapters Complete source code available for customization via CLI Production-ready runtime handling streaming, tools, and state Free MIT license with optional paid cloud persistence Cross-platform support with single chat model
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	73 no change since last check	53 +1 (up) since last check
Trust Flow (Majestic)	19	12
Citation Flow (Majestic)	36	39
Referring domains (Majestic)	348	572

6 details filled in for both companies.

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