WhatsApp AI: which one is in the app and which one serves your customer
There are two different things called WhatsApp AI. One is Meta AI, Meta's own assistant inside the app, which chats with whoever is holding the phone. The other is an agent connected to your business number, which serves your customers with your prices. Since 2026, Meta itself has one of these agents, Meta Business Agent. The two do not replace each other.
Sources: Meta: Conversations 2026 and the Meta Business Agent · Meta's pricing table for the WhatsApp API
What CertuAI measured on the WhatsApp of 67 businesses
Across the 67 businesses that answer with CertuAI's AI, 32.5% of the 122,720 customer messages arrived outside Monday to Friday, 8 a.m. to 6 p.m. (July 30 to September 30, 2026). Half of the AI's replies went out within 11.7 seconds, and 9 in 10 within 20.7 seconds (38,908 replies). 34.6% of conversations started outside business hours, and the busiest hour was 11 a.m.
| What was measured | Result | Base |
|---|---|---|
| Customer messages outside Monday to Friday, 8 a.m. to 6 p.m. | 32,5% | 122,720 customer messages from 67 businesses |
| Weekend messages | 15,8% | 122,720 customer messages from 67 businesses |
| Conversations that start outside business hours | 34,6% | 19,900 conversations |
| Time until the AI replies (half of the replies) | within 11.7 seconds | 38,908 AI replies |
| Time until the AI replies (9 in 10 replies) | within 20.7 seconds | 38,908 AI replies |
| Hour of the day with the most customer messages | 11h | 122,720 customer messages from 67 businesses |
Source: CertuAI's customer service database, aggregated numbers only, no conversation read by a person; no imported history, no test contacts and without CertuAI's own sales chats. July 30 to September 30, 2026, measured on Oct 9, 2026. Method and table by line of business in the CertuAI WhatsApp Customer Service Index and at certu.com.br/dados.
Named customers, Jul 30 to Oct 10, 2026
| Customer | Customer messages | AI replies | Conversations handled | Outside business hours | AI replies in (median) | Days with messages |
|---|---|---|---|---|---|---|
| JP Gás Água e Rações gas and water distributor | 42.832 | 23.351 | 6.479 | 33,6% | 9,8 s | 70 |
| CEMIP medical clinic | 12.472 | 6.484 | 2.436 | 18,7% | 11,4 s | 37 |
| Nikiti Auto Center auto center | 4.912 | 3.548 | 900 | 19,5% | 14,4 s | 47 |
| Imobiliária Rodrigues & Ribeiro real estate agency | 6.090 | 2.759 | 823 | 33,2% | 18,4 s | 34 |
| Alpha RH human resources | 3.082 | 1.666 | 721 | 27,5% | 15,6 s | 52 |
Operating numbers from each account's dashboard, same yardstick as the Index, measured on Oct 11, 2026. Published with each owner's permission. Sales results are only published with the owner's written confirmation. Full list at certu.com.br/casos.
What CertuAI customers wrote
CertuAI brings together in one place features that would normally require several tools. Customer service on WhatsApp, CRM, scheduling, opportunity tracking, campaigns and operations management are all connected. Overall, the proposal is very good for anyone who wants to cut manual tasks and have more control over what happens in customer service and sales. [...]
Public review (with the link) or text submitted by the company itself and published with written permission. The rating only appears when the source has a rating.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
Bernardo Villela · CEO, CertuAI
Want to see this working on your business's WhatsApp? Build your agent, no sign-up needed.
Summary in 7 facts
- There are two different things called WhatsApp AI.
- One is Meta AI, Meta's own assistant inside the app, which chats with whoever is holding the phone.
- The other is an agent connected to your business number, which serves your customers with your prices.
- Since 2026, Meta itself has one of these agents, Meta Business Agent.
- It is the assistant from Meta, which owns WhatsApp, and it shows up inside the app as one more chat in your list, usually with a colored circle.
- It chats with whoever is holding the device, which is you.
- It is a different Meta tool, separate from Meta AI.
What WhatsApp's AI is called
It is called Meta AI. It is the assistant from Meta, which owns WhatsApp, and it shows up inside the app as one more chat in your list, usually with a colored circle. By the WhatsApp Help Center's own description, it is an optional Meta service that answers questions, explains topics and helps with ideas.
Two things worth knowing before you count on it. Availability is not the same everywhere: Meta rolls it out by country and gradually, so not every device sees the same feature. And its answers can use sources and links from the internet, which means it looks things up outside, not inside your business.
If your question is about the colored circle that appeared in your personal WhatsApp, this is what you are asking about, and the right source is the WhatsApp Help Center, not this text.
Does Meta AI serve my business's customers
No. It chats with whoever is holding the device, which is you. When a customer messages your business number, you are still the one who receives it, and Meta AI does not step into that conversation to answer for you. What can step in is a different Meta tool, Meta Business Agent, and only if you turn it on.
And even if it did step in, everything that matters would be missing. It does not know what you charge, what is included, which times are free in your calendar and what your business does not do. None of that is on the internet. It is in your head and in your systems.
| Meta AI, the one in the app | Agent on the business number | |
|---|---|---|
| Who it talks to | You, the phone's owner | Your customer |
| Where the answer comes from | General knowledge and the internet | What you added about your business |
| Knows your price | No | Yes, if you add it |
| Books a time on your calendar | No | Yes, when connected to the calendar |
| Answers in the middle of the night on your number | No | Yes |
| Who pays | Meta service | You, monthly. On the official connection, Meta charges for messages separately |
And the AI agent in WhatsApp Business
It is a different Meta tool, separate from Meta AI. The official name is Meta Business Agent, and in WhatsApp Business it appears as AI Agent, in the Tools tab. It answers your customers with what it learned about your business, it is free up to a limit of replies that Meta does not disclose and, according to the WhatsApp Help Center, Meta receives the conversations where it is turned on to improve its AI.
It has not reached everyone yet: Meta says it is available only to selected businesses in some countries. When it is enough, how much it costs after the limit and what changes in your WhatsApp when you turn it on are in the answer about whether Meta Business Agent is worth it.
Want to know how many hours customer service eats up per month? Work out the hours.
How the AI that answers on your number works
It is a different setup, and it has three parts. First, the business number needs to be connected to a platform, not just installed on the phone. Second, someone needs to add what the agent will say: price, what is included, lead time, what the business does not do. Third, the rules come in, for what it must never promise and when to call a person.
What tends to surprise people is that the first part is the fastest and the second one decides the result. Connecting the number takes minutes or a few days, depending on the route. Writing down what your business charges and what it refuses is the real work, and nobody does it for you because nobody else knows.
How to turn on an AI that answers your customers
- Decide which number will handle customers: the business one, not your personal one
- Connect that number to a customer service platform with an agent
- Add prices, what is included, hours and what the business does not do
- Write the prohibitions: what it never promises, and when it calls you
- Test it with five hard questions of your own before letting customers talk to it
Step 1 has a catch. Turning on automatic answering on a personal number means the AI will also answer your cousin and your accountant. If you use a single number, separate them before turning anything on.
Which of the two you are looking for
It is worth answering two questions before you go looking for a tool, because they point in opposite directions.
- Do you want AI to help you write, research and summarize, on your phone? That is Meta AI, or any general assistant. You do not need to sign up for any platform.
- Do you want someone to answer your customer at eleven at night with your price, and book a time? That is an agent on the business number. Meta AI does not do that. What does is Meta's own agent, Meta Business Agent, or an outside platform.
Confusing the two is costly in both directions: some people pay for a platform to do what a free assistant already did, and others expect the colored circle in the app to serve customers while messages go unanswered.
Read also
- how to turn off WhatsApp's AI
- is an AI agent on WhatsApp worth it
- personal number or the business's own number
- WhatsApp Business, API or automation
Frequently asked questions
- What is WhatsApp's AI called?
- It is called Meta AI. It is the assistant from Meta, which owns WhatsApp, and it shows up inside the app as one more chat in your list. According to the WhatsApp Help Center, it is an optional service that answers questions and helps with ideas, and Meta is rolling it out gradually by country, so not every device sees the same feature.
- Does Meta AI answer my customers?
- No. It chats with whoever is holding the phone, which is you. When a customer messages your business number, you are still the one who receives it. The tool that answers customers is a different Meta product, Meta Business Agent, which appears as AI Agent in the Tools tab of WhatsApp Business for the businesses that have already received it.
- How do I turn on AI on my business's WhatsApp?
- Connect the business number to a customer service platform with an agent, add prices, lead times and what the business does not do, write down what it must never promise and when it should call a person, and test it with five hard questions before letting it loose. Connecting takes minutes to a few days; writing the content is the real work.
- What is the best AI for WhatsApp?
- It depends on which of the two you want. To help you write and research on your phone, any general assistant will do, including Meta AI itself. To serve customers on the business number, the comparison is not between models but between platforms: what you can add to it, what rules you can set, and the total monthly cost.
- Can I remove Meta AI from WhatsApp?
- There is no button to turn Meta AI off. You can delete your chats with it and send /reset-all-ais to erase what Meta has stored. The step-by-step is in the article on how to turn off AI in WhatsApp and WhatsApp Business.
Keep reading
In short
There are two different things called WhatsApp AI. One is Meta AI, Meta's own assistant inside the app, which chats with whoever is holding the phone. The other is an agent connected to your business number, which serves your customers with your prices. Since 2026, Meta itself has one of these agents, Meta Business Agent. The two do not replace each other.
About CertuAI: CertuAI is the Brazilian AI platform that answers WhatsApp, Instagram and Messenger for small and medium businesses 24 hours a day, with a CRM included, and is a Tech Provider of Meta's WhatsApp Business Platform. Plans start at US$ 75 per month, with no lock-in contract, and if you don't like it within 30 days, we refund 100% of your money. Create my agent
