What is LangGraph?
Latest launch MIT
Summary
LangGraph is an open-source orchestration runtime for building stateful, resilient agents.
- Category
- Frameworks
- Open source
- Yes
- License
- MIT
- Pricing
- Not stated in the sources on this page.
LangGraph is an orchestration runtime for agents. The LangChain docs list durable execution, streaming, human-in-the-loop and persistence as its focus, and the repository describes it as "Build resilient agents." It sits in the frameworks category.
This hub was created with the dated launch LangGraph 1.2.15, published October 12, 2026.
LangGraph alternatives
| Tool | License | Pricing note |
|---|---|---|
LangGraphThis pageLangGraph is an open-source orchestration runtime for building stateful, resilient agents. | MIT | Not stated |
MastraTypeScript agent framework. Mastra Code is the terminal agent; AgentController is the extracted loop, in @mastra/core 1.47.0 or later. | Open source | Mastra Code and AgentController are announced as open source. No license fee is stated in the posts we cited. |
adk-pythonAn open-source, code-first Python toolkit for building, evaluating and deploying AI agents. | Apache-2.0 | Not stated |
AgnoAgno is an orchestration and service layer for agents, exposing them through a REST API and an MCP server. | Apache-2.0 | Not stated |
OpenHandsMIT-licensed project to build and run AI coding agents: start locally, automate workflows, use any model. | MIT | The OpenHands repository is MIT-licensed. Hosted plans are not priced on this page. |
Launches and updates
LangGraph 1.2.15 fixes DeltaChannel and checkpoint bugs
LangGraphLangGraph 1.2.15, published October 12, 2026, is a fix release that tightens DeltaChannel, checkpoint, interrupt and ToolNode resume handling.
Category: Frameworks
Pricing: Open source
Guides covering LangGraph
Questions
What is LangGraph?
The LangChain docs describe LangGraph as the orchestration runtime with durable execution, streaming, human-in-the-loop and persistence. The repository description is "Build resilient agents."
Is LangGraph open source?
The GitHub API reports an MIT license for the langchain-ai/langgraph repository.
What is the latest launch covered here?
LangGraph 1.2.15, published October 12, 2026, which the release notes list as a set of fixes.