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Zemith 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.

Zemith compared with assistant-ui
DetailZemith logo Zemithassistant-ui logo assistant-ui
What it doesEvery AI in one app Open-source React components and runtimes for building AI chat
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Open source
PricingFree plan with limited daily usage. Plus plan at $14.99/month (billed yearly at $179.88, approximately 1 month free). Professional plan at $24.99/month (billed yearly at $299.88, approximately 2 months free). Plus includes 1,500,000 credits monthly; Professional includes 3,000,000 credits monthly. O 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
  • Chat with multiple AI models including GPT, Claude, Gemini, Grok and DeepSeek in one interface
  • Deep research with cited reports from multiple sources
  • Generate finished documents, presentations and spreadsheets
  • Background AI agents that run tasks on schedule
  • Plugins for Notion, Linear, Canva and Airtable with approval controls
  • Image and video generation with multiple models
  • Live voice with camera and screen sharing
  • Shared team workspaces and projects with memory
  • Workflow editor to chain models and tools together
  • Over 50 AI tools including notes, whiteboard, speech-to-text and study generators
  • 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
  • Finished work output with documents, decks and spreadsheets ready to send
  • Cloud agents continue working in the background after you close the app
  • Switch between leading AI models mid-conversation to get multiple perspectives
  • Integrates with apps you already use with approval before changes
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)47 +1 (up) since last check53 +1 (up) since last check
Trust Flow (Majestic)1212
Citation Flow (Majestic)2639
Referring domains (Majestic)837572

5 details filled in for both companies.

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