LangChain

TrialOpen Sourcev0.3.15
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Latest release: January 18, 2025

Framework for developing applications powered by language models

llmframeworkpython
Advantages
  • Standard interface for chains
  • Wide integrations
  • Built-in RAG support
Considerations
  • Complex abstraction
  • Frequent API changes
PricingFree tier: Fully open source
Use Cases
Chatbots
RAG applications
AI agents
Alternatives
LlamaIndex
Semantic Kernel
Haystack
Release History
0.3.15January 18, 2025

LangChain 0.3.15

Bug fixes and performance improvements

0.3.0September 15, 2024Major Release

LangChain 0.3

Major refactoring and new features

0.2.0May 20, 2024Major Release

LangChain 0.2

Improved agent architecture