Alternative Vector Databases
While FAISS is powerful, there are other vector stores that can also be used with LangChain:
Pinecone
• Cloud-native and scalable
• Supports metadata filtering and high-volume workloads
• Ideal for production-ready applications

Weaviate
• Open-source with cloud deployment options
• Offers semantic filtering, GraphQL API, and hybrid search

ChromaDB
• Lightweight and open-source
• Great for local testing or small-scale apps
• Seamless integration with LangChain

Summary
Feature | FAISS | Pinecone | Weaviate | ChromaDB |
---|---|---|---|---|
Hosting | Local | Cloud | Cloud + Local | Local |
Open Source | ✅ Yes | ❌ No | ✅ Yes | ✅ Yes |
Scalability | Moderate | High | High | Medium |
Use Case | Dev/Test, POCs | Enterprise apps | Custom AI apps | Lightweight tools |