AG-UI vs. LangGraph Comparison


AG-UI	LangGraph LangChain	+	+
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About AG-UI is an open, lightweight, event-based protocol that standardizes how AI agents connect to user-facing applications. Built for simplicity and flexibility, it enables seamless integration between AI agents, real-time user context, and user interfaces. AG-UI is designed for agent-human interaction: during agent executions, backends emit events compatible with standard AG-UI event types, and agent backends can accept simple AG-UI-compatible inputs as arguments. It works with any event transport, including SSE, WebSockets, webhooks, and other streaming systems, while providing a flexible middleware layer that ensures compatibility across diverse environments. AG-UI brings agents into user-facing applications and complements the wider agentic protocol stack: MCP gives agents tools, A2A allows agents to communicate with other agents, and AG-UI connects agents directly to the user interface.	About Gain precision and control with LangGraph to build agents that reliably handle complex tasks. Build and scale agentic applications with LangGraph Platform. LangGraph's flexible framework supports diverse control flows – single agent, multi-agent, hierarchical, sequential – and robustly handles realistic, complex scenarios. Ensure reliability with easy-to-add moderation and quality loops that prevent agents from veering off course. Use LangGraph Platform to templatize your cognitive architecture so that tools, prompts, and models are easily configurable with LangGraph Platform Assistants. With built-in statefulness, LangGraph agents seamlessly collaborate with humans by writing drafts for review and awaiting approval before acting. Easily inspect the agent’s actions and "time-travel" to roll back and take a different action to correct course.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience AI product developers building interactive agent-powered applications that need structured streaming, tool calls, shared state, and human-in-the-loop control	Audience AI developers
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Not Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing Free Free Version Supported Free Trial Not Supported	Pricing Free Open source Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information AG-UI United States ag-ui.com	Company Information LangChain Founded: 2022 United States www.langchain.com/langgraph
Alternatives assistant-ui	Alternatives LM-Kit.NET LM-Kit
CopilotKit	kama.ai
Deep Agents LangChain	AG-UI
OpenChiip Harness OpenChiip	LangChain
TF-Agents Tensorflow View All	Agno View All
Categories Agentic AI Supported AI Agent Frameworks Supported UX Supported	Categories Agentic AI Supported AI Agent Builders Supported AI Agent Frameworks Supported AI Agents Supported Context Engineering Supported

Integrations Agentivity Supported OpenUI Supported AG-UI Not Supported Agent Development Kit (ADK) Supported Apify Not Supported Astra DB Not Supported Claude Duet Not Supported Claude for Legal Not Supported Convo Not Supported CrewAI Supported Databricks Not Supported E2B Not Supported Elasticsearch Not Supported Hindsight Not Supported LangMem Not Supported LlamaIndex Supported Mastra AI Supported Mem0 Not Supported Model Context Protocol (MCP) Supported Solarch Not Supported Show More Integrations View All 10 Integrations	Integrations Agentivity Supported OpenUI Supported AG-UI Supported Agent Development Kit (ADK) Not Supported Apify Supported Astra DB Supported Claude Duet Supported Claude for Legal Supported Convo Supported CrewAI Not Supported Databricks Supported E2B Supported Elasticsearch Supported Hindsight Supported LangMem Supported LlamaIndex Not Supported Mastra AI Not Supported Mem0 Supported Model Context Protocol (MCP) Not Supported Solarch Supported Show More Integrations View All 43 Integrations
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