LangGraph.js vs Vercel AI SDK
LangGraph.js and Vercel AI SDK are both agent frameworks. LangGraph.js is published by LangChain and Vercel AI SDK by Vercel. On GitHub, Vercel AI SDK has 27,492 stars and LangGraph.js has 3,370. Both were last active in Oct 2026. The table lines up where they differ (publisher, GitHub stars and category) and has the install commands for both. Everything here comes from the listings' public sources and is refreshed daily. LangGraph.js describes itself as: Open-source agent harness from LangChain for building agents with code, with LangSmith for testing and monitoring. Vercel AI SDK: TypeScript toolkit for AI apps and agents with a unified provider API, streaming, UI hooks and a wrapper for running established agent harnesses. Licenses: LangGraph.js MIT, Vercel AI SDK unknown.
Updated Oct 24, 2026 · Built from catalog data; how we rank and grade
LangGraph.js
LangChain
Open-source agent harness from LangChain for building agents with code, with LangSmith for testing and monitoring.
Vercel AI SDK
Vercel
TypeScript toolkit for AI apps and agents with a unified provider API, streaming, UI hooks and a wrapper for running established agent harnesses.
Who should pick which
- Vercel AI SDK has the larger community: 27,492 GitHub stars against 3,370.
From listing data only. We don't pick a winner on security beyond the grades; read how grades work.
Side by side
| Fact | LangGraph.js | Vercel AI SDK |
|---|---|---|
| Type | Harness | Harness |
| Publisher | LangChain | Vercel |
| License | MIT | License unknown |
| Pricing | Not stated | Not stated |
| Runs | Not stated | Not stated |
| Auth | Not stated | Not stated |
| Hosts supported | Not stated | Not stated |
| Tools | Not listed yet | Not listed yet |
| Security grade | –Security: not graded yet | –Security: not graded yet |
| Freshness grade | AFreshness: A | AFreshness: A |
| GitHub stars | 3,370 | 27,492 |
| Weekly downloads | 2,326,897 | Not measured |
| Last release | Oct 22, 2026 | Oct 23, 2026 |
| Last activity | Oct 22, 2026 | Oct 23, 2026 |
Facts from each listing's public sources, checked daily. Tool lists arrive with tool scans.
Install
LangGraph.js
npm install @langchain/langgraph
Vercel AI SDK
npm install ai
Also consider
- 0.867score
Pi Agent Core
Earendil
Minimal TypeScript agent harness with an agent runtime, multi-provider LLM API, terminal UI and coding agent CLI that users extend themselves.
HarnessAFreshness: A★ 117.6K↓ 5.1M/wk - 0.831score
CopilotKit
CopilotKit
Open-source SDK that connects AI agents to app front ends with chat UI, generative UI, shared state and human approvals; creator of the AG-UI protocol.
HarnessAFreshness: A★ 38.2K↓ 286.2K/wk - 0.740score
Deep Agents
LangChain
Opinionated agent harness on LangGraph with sub-agents, filesystem access, context management, persistent memory and approval of tool calls.
HarnessAFreshness: A★ 30.6K↓ 1.9M/wk
Questions
- Is LangGraph.js or Vercel AI SDK more popular?
- Vercel AI SDK has more GitHub stars (27,492 against 3,370). Stars measure attention, not quality, so check freshness and docs too.
- Are LangGraph.js and Vercel AI SDK open source?
- LangGraph.js is open source (MIT); the other is unknown.
Related
- AlternativesAlternatives to LangGraph.js
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- Best ofBest agent frameworks for TypeScript
- ComparisonLangGraph.js vs Pi Agent Core
- ComparisonCopilotKit vs LangGraph.js
- ComparisonDeep Agents vs LangGraph.js
- ComparisonDeep Agents vs Vercel AI SDK
- ComparisonOpenAI Agents SDK (JavaScript) vs Vercel AI SDK
Cite this page
LangGraph.js vs Vercel AI SDK. Agent Mart. https://agentmart.dev/compare/langgraph-js-vs-vercel-ai-sdk (last updated 2026-10-24)