Originally published on rohitraj.tech
A developer's honest guide to building AI chatbots — WhatsApp bots, customer support agents, and LLM-powered assistants. What works, what doesn't, and what it actually costs.
Read the full version with code samples, diagrams, and architecture details: How to Build an AI Chatbot for Your Business: Architecture, Cost & What Actually Works (2026)
More engineering notes: rohitraj.tech/notes
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