A custom AI chatbot that answers questions from your own documents usually costs $3,000 to $10,000 to build. One that also connects to your systems, such as orders, bookings or a CRM, is more like $10,000 to $30,000. Then there is a monthly running cost for the AI model itself, which for most small businesses is surprisingly low. Here is how it breaks down.
The prices in this guide are typical market ranges in 2026 to help you plan a budget. They are not a fixed price list. Every project is different, and we always give a written estimate after a short call.
Chatbot cost at a glance
| Type of chatbot | What it does | Typical build cost | Time |
|---|---|---|---|
| Knowledge chatbot | Answers questions from your website, PDFs and policies on your site | $3,000 – $10,000 | 2 to 4 weeks |
| Connected chatbot | Also checks orders, books appointments or creates leads in your CRM, on web and WhatsApp | $10,000 – $30,000 | 1 to 3 months |
| AI agent | Takes actions across several systems, follows business rules, hands over to staff when needed | $30,000 – $80,000+ | 3 to 6 months |
Monthly running costs
Unlike a normal app, an AI chatbot pays for every conversation it has. The main monthly costs are:
- AI model usage. Models from OpenAI, Anthropic (Claude) or Google charge per amount of text processed. For a small business with a few thousand chats a month this is often $20 to $300.
- Hosting and search database. The chatbot needs a server and a place to store your documents in searchable form. Expect $20 to $150 a month at small scale.
- Channel fees. WhatsApp Business charges per conversation depending on country and message type. Website chat has no extra fee.
- Monitoring and updates. Someone should review answers every month and update the knowledge base when your prices or policies change.
What makes a chatbot cost more
- Messy source data. If your information is spread across old PDFs, spreadsheets and emails, cleaning it up takes time, but it is the single biggest factor in answer quality.
- Integrations. Reading live data from an order system, ERP or booking calendar needs secure connections and careful testing.
- Languages. Supporting Arabic, Hindi or other languages alongside English means more testing, especially for right-to-left layouts.
- Human handover. Passing a chat to a real person with the full history needs a small staff dashboard.
- Privacy and security. Customer data, health or financial information needs stricter controls, logging and sometimes hosting in a specific country.
Custom chatbot or an off-the-shelf tool?
Ready-made chatbot tools are fine if you only need to answer common questions on your website. They usually charge a monthly fee plus a cost per conversation or per resolved chat, which can grow quickly as you get busier.
A custom chatbot makes sense when it must work with your own systems, follow your business rules, speak your customers’ language or keep data under your control. You also own it, so there is no per-seat fee forever.
How to start without overspending
- Begin with the 20 to 30 questions your team answers most often.
- Launch on one channel first, usually your website or WhatsApp.
- Measure which questions the bot cannot answer, then improve it every month.
- Add actions such as bookings or order lookups once people trust the answers.
Read more about our AI chatbot development, LLM integration and AI agent development services.
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Frequently asked questions
How much does it cost to build an AI chatbot?
A chatbot that answers from your own documents usually costs $3,000 to $10,000. One connected to your business systems costs $10,000 to $30,000, and a full AI agent more.
How much does an AI chatbot cost per month to run?
For most small businesses, AI model usage is $20 to $300 a month, plus hosting and any WhatsApp conversation fees.
Which AI model is best for a business chatbot?
It depends on language, cost and privacy needs. We often test OpenAI, Claude and Gemini models on your real questions and pick the one that answers best at the lowest cost.
Will the chatbot make things up?
A well-built chatbot only answers from your approved content and says when it does not know. We test it with real questions before launch.
Planning an AI chatbot?
Tell us what you want it to do and which systems it should connect to. We will suggest the simplest version that works and send an estimate.
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