Alternatives to Langchain
6 alternatives found
LangChain is an open-source framework for building applications powered by large language models (LLMs), created by Harrison Chase in October 2022 and quickly becoming the most widely adopted LLM application framework with over 90,000 GitHub stars. LangChain's core abstraction is Chains — composable pipelines that link LLMs with retrieval, memory, tools, and output parsers to build complex AI workflows from simple building blocks.
LlamaIndex
Data-first LLM framework — stronger for RAG and knowledge base applications over general chains
Semantic Kernel
Microsoft's LLM orchestration SDK — better for .NET/C# enterprise teams, GPT-4 integration
Haystack
Production-focused NLP pipeline framework — more opinionated than LangChain for search/QA apps
Hugging Face
Open model ecosystem — LangChain uses HF models as backends; HF for model access, LangChain for orchestration
CrewAI
Role-based multi-agent framework — simpler agent collaboration than LangGraph for many use cases
AutoGen
Microsoft multi-agent conversation framework — alternative to LangGraph for conversational agent systems
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