Almost every business leader knows they need AI automation in 2026, but the pricing landscape is filled with confusion. You can install an off-the-shelf no-code bot for ₹3,000/month that hallucinates answers, or pay an enterprise consultancy ₹20,00,000 for a generic LLM wrapper.
At i-BnB Software, we engineer enterprise RAG systems and LLM pipelines from our Kerala studio. Here is an honest, transparent breakdown of the costs.
AI Chatbot Architecture & Cost Tiers
| Bot Architecture | Setup Cost | Monthly Ops | Best For |
|---|---|---|---|
| Basic FAQ Flow Bot | ₹45,000 – ₹90,000 | ₹2,000 – ₹5,000 | Simple rule-based triage, static business hours, and fixed choice trees. |
| Custom RAG Knowledge Bot | ₹1.5L – ₹4.5L | $30 – $100 | Customer support answering from PDFs, product docs, and internal knowledge bases without hallucinations. |
| Action-Oriented Agent | ₹5.0L – ₹9.5L | $80 – $250 | Bots that query databases, book appointments, check order status via APIs, and execute refunds. |
| Fine-Tuned Open-Source Model | ₹8.0L – ₹16.0L | $200 – $600 | Strict on-premise healthcare/banking privacy where data cannot leave private servers (Llama 3 / Mistral). |
Why Generic Wrappers Fail and RAG Wins
If you hook a standard ChatGPT API directly into customer support, it will guess when it does not know the answer. That creates severe liability for businesses.
A RAG (Retrieval-Augmented Generation) pipeline solves this. When a user asks a question, the system converts the query into a mathematical vector, searches your private vector database (e.g. pgvector or Pinecone) for the top 3 relevant paragraphs from your uploaded materials, and provides those exact excerpts to the language model as strict ground truth. Learn more in our guide: What is a RAG chatbot and how does it work?
Breakdown of Ongoing Operating Costs
- LLM Inference: Using modern fast models like Claude 3.5 Haiku or GPT-4o-mini costs approximately $0.15 to $0.60 per 1 million input tokens. For 10,000 customer inquiries/month, inference typically costs under $25/month.
- Vector Storage: Using the open-source
pgvectorextension inside your existing PostgreSQL database adds $0 to your infrastructure bill. - WhatsApp Business API: Meta charges based on 24-hour conversation windows (service conversations in India cost roughly ₹0.30 to ₹0.40 per session). Read our full WhatsApp chatbot cost guide.
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