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WhatsApp chatbot for lunchbox restaurants: what it does and what it costs
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 base, aggregated numbers only, no conversation read by a person; no imported history, no test contacts, and without CertuAI's own sales service. July 30 to September 30, 2026, measured on Oct 9, 2026. Divino Fogão Rio Verde, a restaurant, already uses CertuAI to answer customers on WhatsApp. Method and table by industry 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
Every day the same rush: send the menu, take orders until 11 a.m. and close production. The agent sends the menu, takes everything on time and organizes the deliveries.
See the AI agent demos and the CRM with restaurant examples.
What is the best WhatsApp chatbot for lunchbox restaurants in Brazil?
The best WhatsApp chatbot for lunchbox restaurants in Brazil is the one that answers on the number the restaurant already uses, with business rules written by you. An AI agent on WhatsApp for lunchbox restaurants is CertuAI's automatic attendant. It sends the day's menu to the customer base at the time you set, takes orders up to the cutoff time, handles weekly plans and closes the count per dish with the delivery list.
Summary in 7 facts
- Every day the same rush: send the menu, take orders until 11 a.m. and close production.
- The agent sends the menu, takes everything on time and organizes the deliveries.
- See the AI agent demos and the CRM with restaurant examples.
- The best WhatsApp chatbot for lunchbox restaurants in Brazil is the one that answers on the number the restaurant already uses, with business rules written by you.
- An AI agent on WhatsApp for lunchbox restaurants is CertuAI's automatic attendant.
- What changes is who answers first: the message no longer waits for you and is answered right away.
- These are four everyday lunchbox restaurant situations before and after the CertuAI agent.
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 at the lunchbox restaurant 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 lunchbox restaurant situations before and after the CertuAI agent.
TodayDay's menu sent one by one to customers
With CertuAIMenu distributed and orders coming in on their own from early morning
TodayOrders after the cutoff messing up production
With CertuAICutoff applied politely, order moves to the next day
TodayDaily customer forgets to order and you lose the sale
With CertuAIThe agent asks in the morning whether the usual customer wants their meal
TodayLunchbox count closed by shouting across the kitchen
With CertuAIDay's summary ready: quantities per dish and delivery addresses
What does a conversation handled by the AI look like?
Example conversation
Lunchbox restaurant AI agent
Customer: What's on today's menu?
AI agent: Today's menu is what you set up. Which dish, size and quantity?
Customer: What time can I order until?
AI agent: The cutoff time is your time. Send me the address and the payment method and I'll take the order.
Is an AI agent or manual service better for lunchbox restaurants?
The agent wins at repetitive tasks, and people keep winning at what takes judgment. With manual service someone at the lunchbox restaurant has to stop what they're doing; with the CertuAI agent the reply goes out on its own and you join the conversation whenever you want.
| Aspect | The manual way | With the CertuAI agent |
|---|---|---|
| Promoting the day's menu | Sent one by one to customers, every single day | Distributed to the base at the set time, orders coming in from early morning |
| Order cutoff time | An 11:30 order accepted as a favor and production turns into a mess | Cutoff applied politely, late order moves to the next day |
| Daily customer | Forgets to order and the day's sale is lost | Gets the "want your usual today?" before the cutoff closes |
| Production close-out | Lunchbox count by shouting, address checked in the rush | Summary ready on time: quantity per dish and delivery list |
| Weekly plans | Pauses and swaps tracked from memory, billing forgotten | Subscriptions organized per customer, with pauses and swaps recorded |
What does the WhatsApp agent do for lunchbox restaurants?
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.
The day's menu
Sent automatically to the customer base at the time you set.
Order taking
Dish, size, quantity, address and payment, within the cutoff time.
Weekly and monthly plans
Lunchbox subscriptions explained and organized, with pauses and swaps.
Production summary
Count per dish and delivery list closed at the right time.
Daily reminder
Regular customers get the "want your usual today?" before the cutoff closes.
What questions do clients send on WhatsApp?
They are always the same, and the agent answers each one on its own. These everyday lunchbox restaurant messages no longer depend on you having your phone in hand.
How does the agent start answering at the lunchbox restaurant?
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.
How much does an AI agent on WhatsApp cost for lunchbox restaurants?
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 the agent and connect WhatsApp to see it working at your lunchbox restaurant.
Create my agentLunchbox restaurant FAQ
My menu changes every day. Is that a lot of work?
You send the day's menu in one message and the agent handles distribution and orders.
Does it close the kitchen's count?
Yes. At the cutoff time you get the summary: quantities per dish and the delivery list.
I work with weekly subscriptions. Does it manage them?
Yes. Plans, pauses, dish swaps and billing organized per customer.
How much does it cost?
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
The agent sends the day's menu, takes orders up to the cutoff time and delivers the count per dish and the delivery list to the CRM before closing.
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