Shannon AI 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.

Shannon AI compared with assistant-ui
Detail	Shannon AI	assistant-ui
What it does	Frontier Red Team Lab for LLM Safety	Open-source React components and runtimes for building AI chat
Stage	Startup	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Open source
Pricing	Free: $0 with 30,000 daily tokens; Plus: $5.99/month with 80,000 daily tokens; Standard: $19.99/month with 265,000 daily tokens; Pro: $49.99/month with 665,000 daily tokens. Cryptocurrency payment offers 2 months access for 1 month payment.	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	DarkEval Benchmark - proprietary adversarial evaluation system with 96% exploit coverage Memory - context-aware conversations saving approximately 40% on token usage Web search capability across platform Transparent reasoning and chain-of-thought visibility Compliance mapping to NIST AI RMF, ISO/IEC 23894, and SOC 2 Tool calling and JSON output support Multiple open-weight frontier models available Enterprise-grade reporting and team analytics	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	Constraints-relaxed models uniquely capable of detecting vulnerabilities other filtered AI systems cannot Sandboxed environment ensuring all testing is isolated, logged, and auditable Purpose-built for professional red-teaming with enterprise compliance capabilities Free tier available with no credit card required for getting started	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)	42 −1 (down) since last check	53 +1 (up) since last check
Trust Flow (Majestic)	19	12
Citation Flow (Majestic)	33	39
Referring domains (Majestic)	382	572

5 details filled in for both companies.

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