How much does an AI agent for WhatsApp sales cost?What you pay for and what you don't
The price of an AI agent has four parts, and the one that weighs the most is rarely the first line of the proposal. Here is the full breakdown, the pricing models you will run into and how it compares with hiring another sales rep.
How much does an AI agent for WhatsApp sales cost?
The cost of an AI agent that sells on WhatsApp is made up of four components: an initial implementation (mapping your processes, training the agent and connecting it to your systems), a monthly subscription for running the agent, the messages Meta charges for on the official API, and the integrations with your ERP and CRM. The final price depends mostly on how much the agent has to do: answering questions costs little; quoting from your price list and entering the order in your system costs considerably more.
That is why two proposals with the same monthly fee can end up costing very different amounts. The useful comparison is against what it costs to handle WhatsApp by hand today, in sales rep hours and in inquiries that go cold without an answer. If you want the number for your case, request a quote with your volume and your systems.
The four components of the price
Any serious proposal can be split into these four lines. If one is missing, it does not mean it does not exist: it is usually hidden inside another one, or you will pay for it later as an add-on. Always ask for the breakdown before comparing.
| Component | What it includes | How it is charged | Who you pay |
|---|---|---|---|
| Implementation | Process mapping, training the agent on your catalog and rules, testing and go-live | One initial payment, quoted according to scope | The agent provider |
| Agent subscription | Running the agent: AI model, infrastructure, improvements and support | Monthly, by usage, per conversation or with AI credits | The agent provider |
| WhatsApp messages | Templates and service messages sent through the official API | Per delivered message, by customer country and category | Meta, directly or through an official provider (BSP) |
| Integrations | The connection to your ERP, CRM, price list, inventory and payment methods | Inside the implementation or as a separate project | The agent provider or an integrator |
Meta's rate by country and category is explained on the WhatsApp Business API cost page.
What the proposal does not show: the hours your team spends reviewing answers, keeping the catalog up to date and handling what the agent hands off. They are few if the agent is well integrated and many if it is not.
Why two agents with the same price cost different amounts
An agent's list price says little. What defines the real cost is the work the agent does on its own, without anyone stepping in, and that depends on five variables.
- Which processes it covers: answering inquiries is the floor. Qualifying, quoting, taking the order and collecting payment add scope, and every step the agent handles is a step your team stops doing by hand.
- Which systems it connects to: an agent that reads the inventory and price list from your ERP answers with real data. One that does not answers with whatever was loaded into a document and hands off everything else.
- How many conversations it handles: volume drives both the subscription and Meta's messages. Measure it in messages per month, not in contacts.
- How many business rules it has to follow: customer-specific price lists, volume discounts, available credit or delivery zones. Every rule means configuration and testing.
- How it hands off to a person: who receives the conversation, with what context and at what hours. A good handoff keeps the customer from repeating everything.
The pricing models you will run into
Tools on the market charge in different ways, and comparing them means bringing them to the same unit. No model is better in the abstract: each one fits a type of operation.
| Model | How it works | Fits when | Watch out for |
|---|---|---|---|
| Per user | A fee for each person using the WhatsApp inbox | The team replies by hand and the bot is an add-on | It does not scale: every rep you add is another license |
| Per conversation or message | You pay according to the conversation volume on the platform | Volume is stable and easy to forecast | Seasonal peaks go straight to the invoice |
| Build-it-yourself platform | A fee for the software while your team builds the flows | You have technical people with time to build and maintain | Internal hours do not show up in the proposal |
| Custom development | A development project plus a maintenance contract | The process is very specific and strategic for the business | Long timelines and dependence on the team that built it |
| Implementation plus subscription with credits | An initial payment to get it running and a monthly fee with AI credits | You want the agent running, integrated and supported, without building it | Check how many credits the fee includes and how they scale |
Classified by pricing model, not by brand. Sellium uses the last one: initial implementation plus a monthly subscription with AI credits, with no lock-in.
AI agent or another sales rep
It is the question almost everyone evaluating an agent asks, and the short answer is that they do not compete for the same job. The sales rep negotiates, builds relationships and closes the big accounts. The agent answers instantly, quotes the standard cases and enters the order, at any hour and with no queue.
The cost difference shows up with volume: one more rep handles a limited number of conversations a day, and covering nights, weekends and peaks means adding shifts. The agent absorbs that volume at a cost that grows much more slowly.
| Criterion | Hiring another rep | AI agent |
|---|---|---|
| Hours | Their work shift | 24 hours a day, every day |
| Time to first response | Minutes or hours, depending on the load | Seconds |
| Demand peaks | A queue builds up or you add people | Handles conversations in parallel, no queue |
| Negotiating and closing big accounts | Their strength | Hands off to the rep with the context |
| Quoting from the price list | Does it, with time and room for error | Does it instantly if connected to the ERP |
| Logging in the CRM | Depends on each person's discipline | Automatic in every conversation |
The combination that performs best: the agent handles the repetitive work and passes the rep the conversations worth their time.
How Sellium is priced
Sellium is priced in two parts. An initial implementation, quoted for each company, that includes mapping the processes you want to digitize, training the agent on your information, integrating it with your systems and the adjustments you need. And a monthly subscription that includes AI credits for running the agent, with the option to add credits if your volume grows.
There is no lock-in, and you pay for WhatsApp messages directly to Meta, on your own account, with no markup from us. To estimate that part you can use the WhatsApp API cost calculator. For the rest, request a quote with your processes and your systems.
How to build the budget in five steps
With these five answers you will be able to compare proposals in the same unit and request a quote that does not change halfway through.
Define what the agent has to do
Answer inquiries, qualify, quote, take orders, collect payment. Every process is scope, and scope is what moves the price the most.
List the systems to connect
ERP, CRM, price list, inventory, payment methods. Note which ones have an API and which do not: it changes the integration effort.
Measure your message volume
Messages per month, not contacts, split by category. That gives you the subscription estimate and what you will pay Meta.
Ask every provider for the breakdown
Implementation, subscription, messages and integrations on separate lines. What is not broken down cannot be compared.
Compare against not automating
Rep hours spent on repetitive inquiries and sales lost to slow replies. That is the line everything else is measured against.
Public data to size it up
Figures with a published source, to get the order of magnitude of each component. None of them is a Sellium price.
1,000
Free service messages per WhatsApp number per month; after that they are billed at the utility rate
USD 2
Per million tokens in Meta Business Agent replies, about 4 to 5 cents per reply
7x
More likely to qualify a lead when contacting it within the first hour than one hour later
67%
Success rate of AI bought from specialized vendors; internal builds reach one third of that rate
Source: MIT NANDA, The GenAI Divide (2025)
Caveats: Meta updates its rates and billing rules several times a year; check the current one in its documentation. The Harvard Business Review figure measures web leads contacted by phone or email, not WhatsApp, and is used as a reference for response speed.
Sellium: a price explained by what it does
Sellium is quoted by the processes it digitizes and the systems it connects, because that is where the value is: it answers with your real inventory and prices, quotes with your rules, takes the order and logs it in your CRM.
Sellium
AI sales agent for WhatsApp
Sellium is Vantegrate's AI sales agent for WhatsApp: it runs on the official API, replies instantly, quotes with your rules and logs every order or lead in your CRM, around the clock.
Explore SelliumSecure AI agents
Sellium runs 100% on Salesforce and Oracle Cloud infrastructure, certified SOC 2 Type II and ISO 27001. Vantegrate enables, the customer operates and certifies.
See the security modelISV and Consulting PartnerRuns inside your Salesforce
Sellium reads and writes your objects, respects your profiles and permissions, and works alongside Agentforce and your existing flows.
Vantegrate and SalesforceFrequently asked questions about the cost of an AI agent for WhatsApp
What finance and sales leadership usually ask before approving the budget.
How much does an AI chatbot for WhatsApp cost?
How much does an AI chatbot for WhatsApp cost?
It depends on what it has to do. A bot that answers frequently asked questions from an uploaded document is cheap; an agent that quotes from your price list, checks ERP inventory and enters the order costs more, because it includes integration and training. On top of the fee, add the messages Meta charges for and the internal maintenance hours.
Are there free AI agents for WhatsApp?
Are there free AI agents for WhatsApp?
Meta offers its own agent, Meta Business Agent, with a free entry tier and replies charged per token. It works for simple catalogs and frequently asked questions. When the agent has to work with your ERP or CRM, the difference is in the integration, not in the price of each reply. We compare them in detail in Meta Business Agent or a custom AI agent.
What does implementing an AI agent include?
What does implementing an AI agent include?
With Sellium it includes mapping the processes you want to digitize, training the agent on your catalog, prices and business rules, integrating it with your systems, testing, and the adjustments until it is up and running. It is quoted once, according to scope.
Are WhatsApp messages included in the price?
Are WhatsApp messages included in the price?
With Sellium they are not: you pay for messages directly to Meta, on your own account and with no markup from us. That way you see exactly what Meta charges and you do not depend on the provider to change plans. You can estimate it with the WhatsApp API cost calculator.
Is there a minimum commitment?
Is there a minimum commitment?
With Sellium there is no lock-in. The subscription is monthly and can be expanded with more AI credits if your volume grows, or adjusted if it drops.
Is it better than hiring a sales rep?
Is it better than hiring a sales rep?
They do not compete for the same job. The agent replies instantly, around the clock and in parallel, and handles the repetitive work: inquiries, standard quotes, orders. The rep negotiates and closes. What performs best is combining them: the agent passes the rep the conversations worth their time, with the context already laid out.
Request your quote with your numbers
Tell us which processes you want to digitize, which systems you use and how many inquiries you get per month. We will send you a broken-down Sellium quote, with no lock-in and with Meta's messages in your name.