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CopilotKit vs LangGraph

Side-by-side comparison with live GitHub signals. Last updated August 17, 2026.

C

CopilotKit

React/Angular frontend SDK for AI agents with generative UI — 29K+ stars

OSSFree
36.8Ktoday195
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L

LangGraph

LangChain's framework for building stateful agent graphs — 26K+ stars

OSSFree
39.8Ktoday277
Visit GitHub
MetricCopilotKitLangGraph
GitHub Stars36.8K39.8K
Contributors195277
Last CommitAug 17, 2026Aug 16, 2026
Open Issues344697
Licenseopen-sourceopen-source
Pricingopen-sourceopen-source
Free TierYesYes
Categoryframeworksframeworks
TrendingNoNo

Shared Tags

open-source

Only in CopilotKit

reacttypescriptgenerative-uiagent-frameworkfrontendhuman-in-the-loop

Only in LangGraph

graphstatefulmulti-agentlangchainpersistencepython

About CopilotKit

CopilotKit is a full-stack SDK for building agentic applications with generative UI. AI agents can dynamically render React components, manage shared application state, and pause for human-in-the-loop confirmation. Maintains the AG-UI Protocol (adopted by Google, LangChain, AWS, Microsoft) for standardized agent-frontend communication. Supports React and Angular frontends with Python and TypeScript backends. Integrates with LangGraph, CrewAI, and any LLM provider.

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About LangGraph

LangGraph is LangChain's framework for building stateful, multi-actor agent applications as graphs. Define agents as nodes and their interactions as edges, with built-in persistence, streaming, human-in-the-loop, and time-travel debugging. The standard for production agent orchestration in the LangChain ecosystem.

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