A WhatsApp chatbot has two kinds of cost: building it once, and running it every month. Most quotes only talk about the first. This guide explains both, so you can compare offers properly and avoid a cheap build that is expensive to run.
What you are paying for
- The build — setting up the WhatsApp Business Platform, writing the conversation flows and answers, connecting your systems and testing with real questions.
- Meta's charges — WhatsApp charges businesses for certain kinds of messages, at rates Meta sets.
- The AI service — if the chatbot understands free-text questions, each reply uses an AI model that is billed by usage.
- Hosting — the server and database that run the chatbot and store conversations and leads.
- Support — updating answers, fixing issues and adjusting the rules after launch.
What drives the build cost
Menu bot or AI assistant
A menu-based bot that offers fixed options costs less to build and almost nothing in AI charges, but customers can only choose from what is on the menu. An AI assistant understands questions typed in the customer's own words, which feels far more natural but adds AI usage costs and needs careful boundaries on what it may say.
How much it needs to know
A bot that answers twenty questions about timings, location and services is a small job. One that answers from a full product catalogue, price list or policy documents needs a knowledge base that is built, checked and kept up to date.
What it connects to
Saving leads to a CRM, checking order status, booking appointments or taking payments each require an integration with another system. Integrations are usually the largest single part of a chatbot build.
Hand-over to staff
Passing a conversation to a person, with the history visible, is essential for complaints, pricing and anything the bot is unsure about. It needs a shared inbox or CRM view for your team, which is part of the build.
What it costs to run
Meta charges businesses for some WhatsApp messages. Under its current model, template messages that a business sends first — marketing, utility and authentication messages — are charged per message, at rates that vary by category and country. Replies to a customer within 24 hours of their last message are currently not charged. Meta changes these rules from time to time, so check its official pricing page for your use.
On top of Meta's charges come the AI service, billed by how much it is used, and hosting. For a chatbot that mostly answers questions customers start, the running cost is often driven more by AI usage and hosting than by Meta's fees. A bot that sends large marketing campaigns is the opposite.
Ways to keep the cost sensible
- Start with the questions you receive most often, not every question you can imagine.
- Let the bot hand over to a person early, rather than building logic for rare cases.
- Use template messages only where a business-started message is genuinely needed.
- Choose an AI model sized for the job; a smaller model is often enough for routine answers.
- Measure what the bot actually handles after launch before adding more.
Questions to ask before you accept a quote
- Is it built on Meta's official WhatsApp Business Platform, or an unofficial tool?
- Who owns the WhatsApp Business account, the number and the conversation data?
- What are the expected monthly running costs at our message volume — Meta, AI and hosting?
- What does the bot do when it does not know the answer?
- How do my staff take over a conversation, and where do they see the history?
- What happens after launch: who updates the answers, and how quickly?
We do not quote fixed prices before understanding your volume and integrations. See how our WhatsApp chatbot for business works, or tell us what you need and we will estimate both the build and the monthly running cost.