The cheapest way to put an AI chatbot on WhatsApp in 2026 is free to start — Tidio and Botpress both list WhatsApp on their free plans — but the cheapest paid plans that combine WhatsApp with an AI agent start at US$29 a month (ManyChat Pro, billed annually) and run to US$189 a month (Botpress Plus, billed monthly). The right pick depends on one question more than any feature list: do you want WhatsApp to answer customers, or to market to them?
Short version, by job:
- Answering customer questions, booking appointments and catching leads without building flows: Omago or Chatbase.
- Broadcast campaigns and click-to-WhatsApp ads with a chatbot attached: WATI or ManyChat.
- A shared inbox for a sales or support team of five or more, with AI on top: respond.io or SleekFlow.
- You already run Tidio live chat on your website: Tidio with its Lyro AI add-on.
- You want to build a custom bot and have someone technical to do it: Botpress.
Every price below comes from the vendor's own pricing page, checked on 2026-10-05, and each is linked. None of them includes Meta's per-message WhatsApp fees, which are billed on top — that part is explained further down. Prices are in US dollars as displayed to us; at least one vendor (ManyChat) says the final price depends on your billing country, so confirm at checkout.
What counts as a "WhatsApp AI chatbot" in 2026?
A WhatsApp AI chatbot is software connected to your WhatsApp Business number through Meta's WhatsApp Business Platform that reads incoming customer messages and replies on its own, using your business's information, instead of following a fixed menu of buttons. The better ones also take a step for the customer — book a slot, collect contact details, or hand the chat to a person when they can't help.
There is one rule that narrows the field. Since 15 January 2026, Meta does not allow general-purpose AI assistants as the primary function on the WhatsApp Business Platform. An AI that serves your own business's customers — answering questions about your products, hours, prices and bookings — is allowed (Meta developer docs, 2026). Every tool in this list is built for that second job, and that is deliberate: a "ChatGPT on WhatsApp" style bot is not something a business can legitimately run on its number. We cover the policy change in detail in Meta's WhatsApp AI chatbot policy 2026: what actually changed.
Which WhatsApp AI chatbots are worth comparing?
Eight tools, chosen because each one publishes a price and each one runs an AI (not only scripted flows) on WhatsApp for a business's own customers.
| Tool | Best for | What the AI does on WhatsApp | Starting price with WhatsApp (checked 2026-10-05) | Pricing model |
|---|---|---|---|---|
| Omago | Service businesses that want answers, bookings and leads with no flow-building | Answers from your business info, books appointments, captures leads, hands over to staff | US$99/mo (Plus) | Flat monthly, by conversation allowance |
| WATI | Broadcasts and click-to-WhatsApp ad campaigns | Chatbots and AI Co-pilot credits on all plans; Astra AI Agents as a separately priced add-on | US$39/mo billed annually, US$49 monthly (Growth) | Per plan + users; messages per WATI rate card |
| respond.io | Teams of 5+ running sales and support in one inbox | AI Agents handle conversations across WhatsApp and other channels | US$79/mo billed yearly, US$99 monthly (Starter) | Monthly Active Contacts + AI credits |
| SleekFlow | Retail and e-commerce teams that want AI plus broadcasts | AI agents ("AgentFlow") that follow your playbook; Shopify product recommendations | US$109/mo billed yearly, US$139 monthly (Pro) + US$15/mo WhatsApp number hosting | Monthly Active Contacts |
| ManyChat | Creators and social-first shops already on Instagram | "AI-powered convos" via Manychat AI on Pro and above | US$29/mo billed annually (Pro) | Active contacts, pay per extra contact |
| Chatbase | Teams that want an AI agent trained on their docs, fast | AI agent answers from your website and documents | US$40/mo (Hobby); free plan exists | Message credits |
| Tidio | Shops already using Tidio live chat on their website | Lyro AI agent answers from your knowledge base, with human handoff | US$29/mo (Starter) + Lyro from US$39/mo; free plan exists | Billable conversations + separate Lyro AI meter |
| Botpress | Custom-built bots with a developer on hand | Whatever you build: AI agents with rich messages, templates, webhooks | US$189/mo monthly, US$150 billed annually (Plus); free plan exists | Conversations, with automatic top-up packs |
Two notes on reading that table. "Starting price with WhatsApp" is the cheapest plan the vendor's own pages show as including WhatsApp, not the cheapest plan overall. And the pricing model column matters more than the number: a flat plan costs the same in a busy month, while contact-, credit- and conversation-metered plans rise with your traffic.
Omago: who is it best for?
Best for: small service businesses — clinics, salons, real estate agents, restaurants, tutors, local shops — that want WhatsApp and website enquiries answered around the clock without designing chatbot flows.
What the AI does on WhatsApp. Omago's WhatsApp AI chatbot answers customers 24/7 on WhatsApp and on your website chat from your own business information. When a question isn't covered, it says so instead of guessing and hands the conversation to your team, who get notified. It books appointments inside the chat, captures leads to a dashboard, and replies in the customer's language.
How it connects. You connect your WhatsApp Business number through Meta's official signup flow from inside Omago.
Pricing (omago.ai/pricing): Starter is free (website widget, 50 conversations a month). Core is US$49 a month for 2,000 conversations. Plus, at US$99 a month, is the plan that includes WhatsApp and Telegram, with 8,000 conversations. Max is US$369 a month. All plans are flat monthly with no setup fee; Meta's message fees are separate, as with every tool here.
Where Omago is not the best fit. We make Omago, so here is the honest list. If your main use of WhatsApp is broadcast marketing — promotional blasts to thousands of contacts, campaign analytics, retargeting — WATI, SleekFlow or respond.io are built around that and Omago is not. If you want a visual flow builder to design complex branching journeys yourself, Botpress or ManyChat give you far more control. And if you are a large enterprise with many teams, routing rules and multiple workspaces, respond.io and SleekFlow's upper tiers are a better match. Omago is for the business that wants customers answered well, not a platform to engineer. For head-to-head detail see Omago vs WATI, Omago vs SleekFlow and Omago vs respond.io.
WATI: is it the best WhatsApp chatbot for marketing?
Best for: businesses whose WhatsApp is primarily a sales and marketing channel — broadcasts, click-to-WhatsApp ads, Shopify abandoned-cart messages.
What the AI does on WhatsApp. Every WATI plan includes chatbot automations and a monthly allowance of "AI Co-pilot credits" (250 on Growth, 500 on Pro, 1,500 on Business). From Pro upward, WATI lists "advanced chatbots" that answer queries and collect information, and Astra AI Agents, which WATI says can be deployed to web, WhatsApp and voice for lead qualification and support. Astra is an add-on "priced separately", and we could not find its price published on WATI's pricing page or Astra page.
How it connects. WATI's pricing page lists "Zero-fee WhatsApp setup: Get Official WhatsApp API, Blue Tick Verification help".
Pricing (wati.io/pricing, checked 2026-10-05): Growth US$39 a month billed annually or US$49 billed monthly, with 3 users and no additional users allowed. Pro US$79 annually or US$99 monthly, 5 users, extra users US$24 each. Business US$199 annually or US$249 monthly. Messages are "charged based on WATI rate card", additional WhatsApp numbers are US$29 a month each, and extra AI Co-pilot credits are US$20 per 1,000.
Notable limits. The entry plan caps you at 3 users and 15,000 broadcasts a month, and the full AI agent is an extra line item whose price you'll need from sales. WATI doesn't publish its markup on Meta's rates, so compare its rate card against Meta's before you commit.
respond.io: which teams should pick it?
Best for: small and mid-sized teams — typically five people or more — who handle sales and support across WhatsApp, Instagram, Messenger, TikTok, email and calls in one shared inbox.
What the AI does on WhatsApp. respond.io describes its AI Agent as able to "handle conversations on WhatsApp and other channels", alongside AI assist and summary tools for human agents and workflow automation. AI usage draws on AI credits included with each plan; going over turns on extra credits at US$15 per 1,000, with a hard cap at 200% of your allowance.
How it connects. respond.io presents itself as an official WhatsApp Business Solution Provider ("use an official WhatsApp Business Service Provider (BSP) like respond.io").
Pricing (respond.io/pricing, checked 2026-10-05): Starter US$79 a month billed yearly (US$948/year) or US$99 monthly; Growth US$159 yearly or US$199 monthly; Advanced US$279 yearly or US$349 monthly. Starter includes 5 users, extra users from US$12 a month. Plans are priced by Monthly Active Contacts — anyone you talk to in the month — with the default tier at 1,000. respond.io states WhatsApp fees "are not included in any respond.io subscription".
Notable limits. Costs rise with the number of people who message you, so a successful ad campaign pushes you up a tier. It's a powerful platform with a learning curve to match; a solo owner who just wants answers handled will be paying for a lot of team machinery.
SleekFlow: is it worth it for a retail business?
Best for: retail, e-commerce and multi-location businesses that want an AI agent, broadcast campaigns and a shared inbox, with Shopify connected.
What the AI does on WhatsApp. SleekFlow's AI agents (marketed as AgentFlow) are included from the Pro plan; SleekFlow says you can "build AI agents that follow your playbook", see knowledge gaps, and connect Shopify so agents "recommend products and drive checkout". On Premium, agents can call your order, booking or CRM systems via webhooks and APIs.
How it connects. SleekFlow states it is "an official WhatsApp Business Solution Provider (BSP)" and uses Meta's Cloud API.
Pricing (sleekflow.io/pricing, checked 2026-10-05): Pro US$109 a month billed yearly (US$1,308/year) or US$139 monthly, starting with 500 Monthly Active Contacts and 10 users. Premium US$279 yearly or US$349 monthly, from 1,000 contacts. WhatsApp number hosting is an extra US$15 a month, conversation rates are "per SleekFlow rate card", and 60-day dedicated onboarding is US$999 one-off (included in Premium).
Notable limits. Five hundred active contacts is a small allowance for a busy shop; SleekFlow adds 100 contacts at a time when you exceed it. Integrations with HubSpot, Zoho and webhooks sit on Premium, not Pro.
ManyChat: should you use it for WhatsApp?
Best for: creators, coaches and social-first shops whose customers mostly arrive from Instagram or TikTok, and who want WhatsApp as one more automated channel.
What the AI does on WhatsApp. ManyChat's Pro, Business and Advanced plans carry the "Manychat AI" label and list "advanced automations, broadcasting & AI-powered convos". ManyChat is still, at heart, an automation builder: the AI sits inside flows you design rather than acting as a standalone agent trained on your business.
How it connects. ManyChat calls itself "an official Meta-approved partner", and its WhatsApp page answers whether you can switch to it from another Business Solution Provider. Important: "Manychat for WhatsApp is only available for Pro accounts."
Pricing (manychat.com/pricing, checked 2026-10-05): Pro is US$29 a month billed annually (US$348/year), with 2,500 active contacts and 3 channels; Business is US$69 a month billed annually. Extra active contacts on Pro cost US$0.05 each on monthly billing or US$0.038 on annual. We could only load the annual-billing view on the check date, so we are not quoting a monthly-billing price; the page states it is higher ("save up to 30%" on annual).
Notable limits. The Free and Essential plans can't use WhatsApp. Per-contact billing means the bill grows with your audience, and the product's centre of gravity is Instagram marketing, not customer service.
Chatbase: is it a good WhatsApp AI agent for support?
Best for: businesses that want an AI agent trained on their website and documents up and running in an afternoon, primarily on website chat, with WhatsApp as an extra channel.
What the AI does on WhatsApp. Chatbase builds an AI agent from your content and lets it answer on its website widget and integrations, including WhatsApp, with configurable "AI Actions" per agent.
How it connects. Chatbase's WhatsApp guide uses a Meta signup flow: you log in with Facebook, choose or create a business profile and add a number. Its docs are clear about two constraints — "a number connected to Chatbase can't also be used in the WhatsApp or WhatsApp Business app", and free-form replies are limited to the 24-hour window, after which you need an approved template.
Pricing (chatbase.co/pricing, checked 2026-10-05): Free (50 message credits a month, agents deleted after 14 days of inactivity), Hobby US$40 a month (700 credits), Standard US$150 (4,000 credits), Pro US$500 (15,000 credits), monthly billing; yearly plans are 20% off. Extra credits are US$40 per 1,000 and removing "Powered by Chatbase" branding is US$99 a month.
Notable limits. Credits, not conversations, are the unit — and one conversation uses several. A shared team inbox and human handoff on WhatsApp aren't the product's focus; check that your handover process works before you rely on it.
Tidio: does Lyro work on WhatsApp?
Best for: online shops that already use Tidio live chat on their website and want WhatsApp in the same inbox with the same AI.
What the AI does on WhatsApp. Tidio's Lyro AI agent answers from your FAQs and website content, with human handoff and a customisable communication style. Tidio's own help article confirms Lyro's outgoing WhatsApp messages count toward the WhatsApp message allowance, alongside human agents and Flows.
How it connects. Through Meta, using your Facebook Business Manager. Tidio says the WhatsApp integration is "completely free and available on each plan", and that it bills WhatsApp usage above 1,000 free messages per number per month itself, adding "no markup".
Pricing (tidio.com/pricing, checked 2026-10-05): Free plan (50 billable conversations). Starter US$29 a month (100 billable conversations, plus 50 one-off Lyro conversations), Growth from US$59, Plus from US$300 plus usage; annual billing gives two months free (Starter US$24.17/mo). Lyro is a separate meter: from US$39 a month on monthly billing (US$32.50 annually) for 50 Lyro AI conversations.
Notable limits. Two meters — human "billable conversations" and Lyro AI conversations — to forecast. Tidio's help article also notes WhatsApp limits on Flows: only three triggers work on WhatsApp, and customers see only the first 3 quick-reply buttons.
Botpress: when does a build-it-yourself platform make sense?
Best for: businesses with a developer or agency who want a fully custom AI bot — their own logic, integrations and data — across webchat and WhatsApp.
What the AI does on WhatsApp. As much as you build. Botpress's official WhatsApp integration lets your bot send text, media, choices and cards, start conversations with approved templates, and react to delivery and template events. Paid plans include unlimited AI agents and an AI-usage allowance.
How it connects. Botpress says it offers "an official WhatsApp integration, maintained by the Botpress Team". You authorise WhatsApp from Botpress Studio, and "until Meta verifies your business, your bot cannot send messages to WhatsApp users".
Pricing (botpress.com/pricing, checked 2026-10-05): Free with 25 conversations a month (WhatsApp is listed on every plan). Plus US$189 a month billed monthly or US$150 billed annually, with 250 conversations, US$25 of AI usage and 3 seats. Team US$939 monthly or US$750 annually with 1,500 conversations. Extra conversations come in packs of 100 for US$65 on Plus.
Notable limits. Packs are added automatically at 95% of your quota and the auto-recharge can't be turned off; at roughly US$0.65 a conversation on Plus overage, a busy month gets expensive. And it is a builder — someone has to design, test and maintain the bot.
How do you choose the right WhatsApp chatbot?
Work through these in order; most small businesses have a winner by question three.
- Is WhatsApp for answering or for marketing? If most of your WhatsApp traffic is customers asking you things — price, availability, hours, bookings — prioritise answer quality and handover (Omago, Chatbase, Tidio with Lyro). If it's campaigns and promotions, prioritise broadcast tooling (WATI, SleekFlow, respond.io, ManyChat).
- Who will set it up? No technical person and no time: pick a tool that learns from your existing information rather than one you program. Developer available and unusual requirements: Botpress.
- How many people reply alongside the AI? One or two: you don't need team routing, so don't pay for it. Five or more with assignments and reporting: respond.io or SleekFlow.
- What happens in your busiest month? Take your peak month's enquiries and price it on each shortlisted tool. Flat plans stay flat; per-contact, per-credit and per-conversation plans don't. Our comparison of AI customer service software by pricing model walks through the arithmetic.
- Does the AI admit what it doesn't know? Test it with three questions your information doesn't cover. A bot that invents an answer about your prices or opening hours costs you more than one that says "let me get a colleague" and notifies your team.
- Can you keep your number? Several tools require the number to be used only through the API, not in the WhatsApp Business app at the same time. Check this before migrating the number your customers already know.
If you run a business in Hong Kong, where Cantonese support and local providers matter more, our guide to the best WhatsApp AI tools for Hong Kong businesses compares the options available there.
What does WhatsApp itself cost on top of the chatbot?
Every tool above charges a platform fee; Meta's own per-message WhatsApp fees are billed on top, either by Meta directly or passed through the platform. Here is what matters for a US business, from Meta's developer documentation (checked 2026-10-05):
- Per-message pricing has applied since 1 July 2025. You pay per delivered template message, by category (marketing, utility, authentication) and by the recipient's country.
- From 1 October 2026, service replies are no longer unlimited-free. Replies you send inside the 24-hour customer service window — the window that opens when a customer messages you — are free for the first 1,000 per business phone number per month, then billed.
- Free entry point window. If a customer messages you from a click-to-WhatsApp ad or a Facebook Page call-to-action button (on Android or iOS) and you reply within 24 hours, a free window of up to 7 days opens.
- US rates are low for non-marketing messages: utility and authentication messages cost US$0.0034 each. Marketing templates have their own, higher rate.
A worked example: a US salon whose AI sends 1,500 service replies in a month pays nothing for the first 1,000 and is billed for the remaining 500. Even at a utility-level rate of US$0.0034 that is under US$2 — the platform fee, not Meta, is almost always the bigger number for a US business that mostly answers incoming messages. The picture changes for businesses that send heavy marketing broadcasts, or that serve customers in pricier markets. Our WhatsApp Business API pricing 2026 by country has the full rate table and more worked bills.
One more line item to watch: some platforms add their own fee on top of Meta's rates, or a per-number hosting fee (SleekFlow lists US$15 a month). Tidio states it adds no markup; WATI and SleekFlow bill per their own rate cards. Ask for the rate card before you sign.
Frequently asked questions
What is the best WhatsApp AI chatbot for a small business?
It depends on the job. For answering customer questions, booking appointments and capturing leads without building flows, Omago (from US$99 a month with WhatsApp) or Chatbase (from US$40 a month) fit best. For broadcast marketing and click-to-WhatsApp ads, WATI (from US$39 a month billed annually) or ManyChat Pro (US$29 a month billed annually). For teams of five or more in a shared inbox, respond.io or SleekFlow. Prices checked 2026-10-05.
Is there a free WhatsApp AI chatbot?
Yes, with tight limits. Botpress's free plan includes WhatsApp with 25 conversations a month, and Tidio's free plan includes the WhatsApp integration with 50 billable conversations and 50 one-off Lyro AI conversations. Chatbase has a free plan with 50 message credits a month. Meta's message fees still apply beyond the free allowances.
Do WhatsApp chatbot prices include Meta's message fees?
No. None of the eight tools here includes Meta's per-message fees in its subscription. Since 1 October 2026, service replies inside the 24-hour window are free for the first 1,000 per phone number per month and billed after that; template messages are billed per message by category and country. In the US, utility and authentication messages cost US$0.0034 each.
Is it allowed to use an AI chatbot on WhatsApp Business in 2026?
Yes, if it serves your business's own customers. Since 15 January 2026, Meta does not allow general-purpose AI assistants as the primary function on the WhatsApp Business Platform, but AI that answers questions about your products, services, bookings and orders is allowed. All the tools in this comparison are customer-service or marketing bots for a business's own customers.
Can I keep using the WhatsApp Business app after connecting a chatbot?
Often not on the same number. Chatbase's documentation, for example, states that a connected number can't also be used in the WhatsApp or WhatsApp Business app. Check your chosen platform's rules before moving the number customers already use, and consider whether a new number for the AI makes more sense.
What is the difference between a WhatsApp chatbot and a WhatsApp AI agent?
A traditional WhatsApp chatbot follows menus and keyword rules you design, so it breaks when a customer phrases something unexpectedly. An AI agent reads the message as written, answers from your business's information, and can take actions such as booking or handing over to staff. Several tools here (ManyChat, Botpress, WATI) offer both, so check which one your plan actually includes.
Sources: vendor pricing pages for WATI, respond.io, SleekFlow, ManyChat, Chatbase, Tidio and Botpress (all checked 2026-10-05, linked above); WATI Astra product page; respond.io WhatsApp Business API page; SleekFlow announcement of its WhatsApp Business Solution Provider status; ManyChat WhatsApp product FAQ; Chatbase WhatsApp integration documentation; Tidio Help Center WhatsApp integration article; Botpress WhatsApp integration page; Meta / WhatsApp Business Platform developer documentation on pricing and business AI policy (checked 2026-10-05); Omago published pricing. Prices change without notice and some vendors localise prices by billing country; confirm the final price before you buy. This is general commercial information, not legal or financial advice.