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Alternatives to LangChain
14 tools with a similar purpose to LangChain. Open-source framework and company for building LLM-powered applications and agents.
About this list. These tools overlap with LangChain in what they do; they are not ranked and are not claimed to be better or worse. Features and pricing change often, so verify on each vendor's site.
LangChain at a glance
- Category
- AI Agents & Frameworks
- Pricing model
- Freemium Source: https://www.langchain.com/pricing
- Official site
- https://www.langchain.com/ · Details
14 alternatives
| Tool | What it does | Pricing | Link |
|---|---|---|---|
| LlamaIndex | Framework and cloud services for building agents over your own data. | Freemium | Official site |
| CrewAI | Framework and platform for orchestrating teams of role-playing AI agents. | See site | Official site |
| LangGraph | Framework for building stateful, controllable multi-step agents. | See site | Official site |
| Haystack | Open-source framework from deepset for building search, RAG and agent pipelines. | Free | Official site |
| Semantic Kernel | Microsoft's SDK for integrating AI models and agents into applications. | Free | Official site |
| DSPy | Framework for programming rather than prompting language models. | Free | Official site |
| Pydantic AI | Python agent framework from the Pydantic team focused on type safety. | Free | Official site |
| Mastra | TypeScript framework for building AI agents and workflows. | Freemium | Official site |
| Vercel AI SDK | TypeScript toolkit for building AI-powered applications and agents. | See site | Official site |
| OpenAI Agents SDK | OpenAI's lightweight Python framework for multi-agent workflows. | Free | Official site |
| Google Agent Development Kit | Google's open-source toolkit for building and deploying AI agents. | Free | Official site |
| Agno | Framework and runtime for building multi-agent systems. | Freemium | Official site |
| smolagents | Hugging Face's minimal library for building agents that write code. | Free | Official site |
| AutoGen | Microsoft's open-source framework for building multi-agent applications. | Free | Official site |
Alternatives with a free plan or tier
LlamaIndex, Haystack, Semantic Kernel, DSPy, Pydantic AI, Mastra, OpenAI Agents SDK, Google Agent Development Kit, Agno, smolagents, AutoGen.
Side-by-side comparisons
Best AI tools for building AI agents · All alternatives guides