LangChain
The broad LLM application framework — chains, agents, retrievers.
LangChain is the most-used general-purpose LLM framework — chains, retrievers, agents, callbacks, integrations with hundreds of LLM providers and vector stores.
Pros
- ✅ Massive integration surface
- ✅ Familiar to most LLM engineers
- ✅ Pairs well with LangSmith for eval
Cons
- ⚠️ API has changed a lot over time
- ⚠️ Abstractions can leak
Use cases
general LLM appsRAGagents
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