Answers customers, sells and gives you your time back
WhatsApp chatbot for delivery in Brazil, with your business's Brain
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
At the rush nobody can answer and cook at the same time. The agent writes down the whole order, confirms the address, gives the fee and the time, and only then passes it to the kitchen.
See the AI agent demos and the CRM with restaurant examples.
What is the best WhatsApp chatbot for delivery in Brazil?
The best WhatsApp chatbot for delivery in Brazil is the one that answers on the number the delivery business already uses, with business rules written by you. An AI agent on WhatsApp for delivery is CertuAI's automatic assistant, which takes the order in normal language, with no numbered menu: it writes down items and notes, checks that the address is in the delivery area, gives the fee for the area and the estimated time, and records everything before sending it to the kitchen.
Summary in 7 facts
- At the rush nobody can answer and cook at the same time.
- The agent writes down the whole order, confirms the address, gives the fee and the time, and only then passes it to the kitchen.
- See the AI agent demos and the CRM with restaurant examples.
- The best WhatsApp chatbot for delivery in Brazil is the one that answers on the number the delivery business already uses, with business rules written by you.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday delivery situations before and after the Certu Agent.
- The agent wins at repetitive tasks, and the person keeps winning at what takes judgment.
By the numbers
| Number | What it means |
|---|---|
| US$ 75 per month | The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. |
| US$ 120 per month | Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. |
What changes in delivery with an AI agent?
What changes is who answers first: the message no longer waits for you and is answered right away. These are four everyday delivery situations before and after the Certu Agent.
TodayCustomer asks the fee for their neighborhood and gives up waiting for an answer
With CertuAIFee and time answered right away, with the order already being written down
TodayOrder reaches the kitchen without the note the customer sent afterward
With CertuAIEverything in one message, confirmed in writing before production
TodayCustomer who ordered every week disappears and nobody notices
With CertuAIAutomatic follow-up with what they used to order
TodayMessage at the rush goes unanswered and the customer orders from the competitor
With CertuAIOrder written down in seconds, even with a full kitchen
TodayAddress outside the area discovered when the driver has already left
With CertuAIArea checked in the conversation, before the kitchen starts
Today"What's the fee for my neighborhood?" answered from memory, a different way every time
With CertuAIFee by zone, the same in every conversation
TodayCustomer orders an item that's gone and the order becomes a cancellation
With CertuAIItem marked as sold out disappears from the conversation right away
What does a conversation handled by the AI look like?
Example conversation
Delivery AI agent
Customer: I want to repeat last week's order
AI agent: It's right here in your history. Should I confirm the same order as last week?
Customer: Do you accept Pix?
AI agent: We do. I'll send the Pix here in the conversation as soon as the order is confirmed.
Is an AI agent or manual customer service better for delivery?
The agent wins on repetitive tasks, and a person keeps winning where judgment is needed. With manual service, someone at the delivery business has to stop what they're doing; with the Certu Agent the reply goes out on its own and you step into the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Order at the rush | Waits in line until someone leaves the kitchen | Written down right away, with notes |
| Address outside the area | Discovered only when it's time to head out to deliver | Stopped in the conversation, before it becomes an order |
| Delivery fee | Agreed from memory, varies by attendant | The same rule by zone, always |
| Missing item | Sold and canceled later | Off the menu the moment you mark it |
| Order from a returning customer | They repeat everything again | History in the CRM, just confirm |
What does the WhatsApp agent do for delivery?
It does the customer service that is yours today. You teach the business once in the Brain, CertuAI's knowledge base, and the agent answers clients your way, with your rules.
Deal of the day
Answers what is on promotion today and until what time it applies, without someone having to repeat it in the chat all day.
Repeat order
A returning customer asks for "the usual" and the agent confirms from the history, without making them rebuild everything.
Delivery delay
When an order runs past its time, the agent lets the customer know before they ask, with the new time.
Complete order
Items, notes, how the meat is cooked, no onions: written down and confirmed before going to the kitchen.
Address and delivery area
Confirms the address, checks whether it's in the area, and gives the fee for the area.
Delivery time
Answers the current average time, and warns when the rush changes the estimate.
Payment
Accepted payment methods, change for how much, and the Pix (Brazil's instant payment) sent in the conversation.
Customer who vanished
Someone who ordered every week and stopped gets a follow-up on their own, with the history of what they used to order.
What questions do clients send on WhatsApp?
They're always the same, and the agent answers each one on its own. These everyday delivery messages no longer depend on you having your phone in hand.
How does the agent start answering customers in delivery?
In three steps, on the same day. No installation, no code and no changing the number clients already know.
Teach your business
In one conversation, you explain services, prices, hours and rules, as you would to a new employee.
The agent answers
Answers right away, books, follows up and logs every contact in the included CRM. You can take over any conversation whenever you want.
How much does an AI agent on WhatsApp cost for delivery?
The Start plan costs US$ 75 per month and already includes the WhatsApp agent, your business's Brain, the CRM, automatic follow-up and the AI assistants, which come with every paid plan. Pro costs US$ 120 per month and adds the landing page, the wallet and 10 people on the team instead of 5. No lock-in contract and no setup fee.
Get started now
Create my agentWhat needs to be ready before turning the agent on in delivery?
The agent answers what is written, and nothing beyond that. Have these points defined before you connect WhatsApp.
- Menu with prices and what's out of stock today
- Delivery area and the fee for each zone
- Average delivery time, and how much it changes at the rush
- Payment methods and whether you send Pix (Brazil's instant payment) in the conversation
- Minimum order, if there is one
Decide three things: whether the agent closes the order or only writes it down, whether it confirms the address before sending it to the kitchen, and what it does when the delivery is late.
The most common mistake: A delivery area that only exists in the head of whoever answers. The agent accepts the order and the driver finds out on the street. Read how to fix this.
Frequently asked questions about delivery
How long does it take to go live?
The work is having the menu with prices, the delivery area with the fee for each zone, and the average time at the rush. With that defined, the Brain learns in one conversation and WhatsApp connects by QR code, on the same number your customers already message.
Does the agent know when the kitchen can't take any more orders?
If you set the limit, yes. You can say that from a certain time or a certain volume it starts giving a longer time, or saying the kitchen is closing orders. It's better to lose the order in the conversation than to accept it and deliver it cold an hour later.
And when a customer complains about a previous order?
It identifies that it's a complaint and not a new order, and hands it to you instead of trying to solve it on its own. A complaint badly handled by automation costs more than the complaint itself, so this is one of the conversations the agent hands off by default.
Can the agent handle the Friday night rush?
That's when it pays off most. At the rush nobody can answer and produce at the same time, and that's exactly when the most people ask about fee, time, and area. The agent answers all conversations in parallel, writes down the order, and only passes it to the kitchen when it's complete and the address checks out.
What if the customer sends the order in five separate messages?
It puts them together. The customer sends the item, then remembers the note, then the address, the way people talk on WhatsApp. The agent builds the whole order and sends it back in writing to confirm before sending it to be made.
How does it handle an address outside the area?
It stops it in the conversation, before it becomes an order. You define the area and the fee for each zone, and the agent checks the address on the spot. It's the costliest mistake in delivery: finding out it's outside the area when the driver has already left.
Can I use it alongside my digital menu?
Yes. The Brain imports the menu, including from Cardápio Web, so the agent answers with the same price that's in the catalog. A good share of delivery customers don't open links and prefer to ask by message, and that's the customer the agent serves.
Does it warn when an order is late?
Yes, if you set the trigger. The agent lets the customer know before they ask, with the new time. A delivery complaint is almost never about the delay itself, it's about nobody having said anything.
What happens when an item runs out in the middle of service?
You mark it as sold out and it stops offering it right away, in all conversations at once. Without that, the item keeps being sold and turning into a cancellation later.
Does it close the order or just write it down?
You choose. It can write it down and let someone confirm before it's made, or close it on its own when the order is complete and the address checks out. Many delivery businesses start with human confirmation and loosen it after gaining confidence.
And the customer who disappeared?
Someone who ordered every week and stopped gets a follow-up on their own, with the history of what they used to order. It's the customer base that delivery already has and rarely works.
Does the agent close the order on its own or just write it down?
You choose. It can write it down and pass it to someone to confirm, or close it on its own when the order is complete and the address checks out.
How does it know what's out of stock?
Through the Brain. You mark the item as sold out and it stops offering it right away, in all conversations.
Does it work with the system I already use?
The agent answers on WhatsApp and records in the built-in CRM. The menu can be imported, including from Cardápio Web.
And at the rush, can it handle several conversations at once?
Yes. It answers all of them in parallel, which is exactly the time when nobody can stop to type.
In what other fields does the CertuAI agent work?
In any business that serves customers on WhatsApp, because the Brain is written by you. These fields have a day-to-day closest to yours.
Where can I read more about CertuAI's WhatsApp agent?
These pages explain the same agent from another angle: how it works, price, common questions and comparisons between platforms.
- Demo CRM with restaurant examples, to try without signing up
- How the AI WhatsApp chatbot works
- CertuAI plans and prices
- How much it costs to put AI in your business
- WhatsApp AI guides, step by step
- AI blog for small businesses
- Compare WhatsApp chatbot platforms
- All fields served by the CertuAI agent
In short
At the rush, CertuAI writes down the order, checks that the address is in the delivery area, gives the fee and time, and keeps the customer in the CRM.
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