Construir un pipeline RAG con LangChain y pgvector
Guía paso a paso para añadir Q&A documental a tu SaaS sin lock-in de OpenAI.
TL;DR
Un stack RAG en producción para indie hackers cuesta ~15 $/mes: pgvector en Neon, embeddings vía OpenAI text-embedding-3-small y LangChain para orquestación. Latencia bajo 2 s con chunks de 512 tokens.
Marie Dubois9 min de lectura
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Building a RAG pipeline with LangChain and pgvector: what indie hackers need to know in 2026
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| Criteria | Option A | Option B | Winner |
|---|---|---|---|
| Lock-in risk | Low | High | Option B |
| Learning curve | Free tier | Low | Depends |
| Community | Free tier | Medium | Option B |
| Lock-in risk | High | Low | Tie |
How do you get started with Building a RAG pipeline with LangChain and pgvector?
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- Copia demens viduo verto.
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Frequently asked questions
- What is the best building a rag pipeline with langchain and pgvector for indie hackers in 2026?
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- How much does building a rag pipeline with langchain and pgvector cost for a solo founder?
- Most indie stacks land between $42/mo and $137/mo depending on traffic and GPU usage.
- Can I self-host instead of using a managed service?
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