Step-by-step framework to plan, build, train and deploy a production-grade AI chatbot with RAG, function calling and WhatsApp/Web channels.
A modern AI chatbot is not a scripted FAQ tree — it's a Retrieval-Augmented Generation (RAG) agent that grounds answers in your real knowledge base.
Pick ONE primary outcome: book appointments, qualify leads, deflect support tickets, or recover carts. Multi-purpose bots dilute UX. Start narrow, expand later.
Export FAQs, product specs, past tickets, policies. Clean and chunk into 300–500 token segments. Quality of retrieval > size of LLM.
For most Indian SMBs: OpenAI GPT-4o-mini or Gemini Flash for reasoning, Pinecone or Supabase pgvector for retrieval, n8n or LangGraph for orchestration, WhatsApp Cloud API for distribution.
In India, WhatsApp converts 3–5× better than web chat. Use the WhatsApp Business API via Gupshup, Wati or AiSensy for fastest go-live.
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