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Andre Rizzo
Founder & Lead Developer
AI··7 min read
Enterprise chatbots with RAG: 2026 guide
RAG chatbots actually work — if built well.
60% of RAG projects fail on avoidable mistakes.
What is RAG
Retrieves relevant docs from your KB, feeds as context. Domain-specific, current, citable.
3 ROI-proven cases
L1 CS (30-50% deflection), internal KB, pre-sales qualifier.
Architecture
Vector DB + embedder + retriever with re-ranking + LLM + frontend + observability.
Project killers
Dirty docs, naive chunking, no re-ranking, no eval.
2026 costs
€12-30k setup. €300-1500/month. ROI 4-7 months at 500+ tickets/month.