What is the cheapest WhatsApp chatbot for businesses?

TBit starts at 45 USD/month with 1,500 energy included (1 reply from your TBit = 1 energy) and the WhatsApp API ready. It's the most complete option with AI inside the price. LucidBot costs 44 USD/month but requires you to pay separately for your AI API key, so the list price isn't the total cost.

What does BYOK mean in WhatsApp chatbots?

BYOK (Bring Your Own Key) means the platform doesn't include its own AI: you have to bring and pay for your own API key from a provider like OpenAI. This adds variable costs to your monthly bill. TBit doesn't require BYOK because the AI is included.

Is it better to pay per reply or per conversation?

Charging per reply is more transparent. In TBit each complete reply uses 1 energy, so you know exactly how much each AI reply costs. Charging per conversation or per contact can be confusing because a conversation can vary in length and complexity.

Can I migrate from Manychat or Chatfuel to TBit?

Yes. TBit lets you import your contacts and start handling WhatsApp quickly. The migration process is simple and the support team guides you step by step.

What's the best option for a small business in 2026?

For small businesses, TBit is the most balanced option: AI included in all plans from 45 USD/month, no hidden API costs and full WhatsApp handling features.

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The best WhatsApp chatbots in 2026: an honest comparison

We compare TBit, Mercately, LucidBot, Manychat and Chatfuel: the real cost by volume, whether AI is included or separate, and which one suits your case.

Published on February 9, 2026Updated on October 12, 20265 min read

The real problem: not all platforms cost what they say

You search for "WhatsApp chatbot" and find 20 options. They all promise AI, automation, and growth. But when you read the fine print, you discover that the price on the homepage is not what you end up paying. Some charge per conversation, others per contact handled, others ask you to bring your own AI API key (and pay the costs separately).

The difference between choosing well and choosing poorly can be hundreds of dollars a month. Let's compare with real numbers, not marketing phrases.

A real scenario: how much you pay to serve 200 customers a month

Let's say you have a business that receives 200 inquiries on WhatsApp per month. Each customer sends an average of 8 messages before deciding on a purchase. Your AI agent replies with an average of 6 messages per conversation. Here's how the numbers look:

PlatformBase priceBilling modelEstimated monthly costAI included TBit (Plus)45 USDPer energy (1 reply = 1)45 USD (1,200 of 1,500 energy)Yes Mercately250 USDPer contact handled250 USD (200 contacts within the limit)Yes, with surcharge LucidBot44 USDBYOK + API costs44 + ~36 USD API = ~80 USDNo (you bring your API) Manychat15 USDPer contacts15 USD (limited AI)Basic Chatfuel20 USDPer conversations~60 USD (200 conversations)Templates

The table reveals something important: the base price is not the real cost. Mercately costs more than 5 times what TBit does for the same volume. LucidBot seems cheap until you add your OpenAI API costs (at ~$0.03 per reply with GPT-4, 1,200 replies cost ~$36 extra). And Manychat at 15 USD sounds great, but its AI for WhatsApp is basic and doesn't replace a real agent.

Now with more volume: what happens when your business grows

Imagine you grow to 500 customers a month (3,000 AI replies). Here the gap widens:

TBit Business: 80 USD/month (3,000 energy included). If you need more, you upgrade to Pro, Scale, or Enterprise, where additional energy costs US$0.027 per unit.
Mercately: 250 USD minimum, but 500 contacts exceeds its basic plan limit (1,000 contacts for 250 USD). You probably need its 450 USD plan. If you exceed the limit: +0.15-0.25 USD per additional contact.
LucidBot: 44 USD + ~90 USD in API costs = ~134 USD. And you manage the API key, rate limits, token errors.

With TBit at 80 USD, you get AI included, unlimited users, WhatsApp templates included, and campaigns. To get something equivalent with Mercately, you pay between 450-750 USD.

Platform-by-platform analysis

TBit: transparency from day one

TBit charges in energy: each complete reply from your TBit uses 1 energy, no matter how many WhatsApp bubbles are sent. If your TBit replies with a paragraph that WhatsApp splits into 3 bubbles, you still use 1 energy.

AI comes built in. You don't open an OpenAI account, you don't manage API keys, you don't pay for tokens separately. This difference is fundamental for businesses that don't have a technical team.

Plus: 45 USD/month, 1,500 energy
Business: 80 USD/month, 3,000 energy (the most popular)
Pro: 115 USD/month, 5,000 energy, additional energy at US$0.027 per unit
Scale: 260 USD/month, 12,000 energy, additional energy at US$0.027 per unit
Enterprise: 500 USD/month, 25,000 energy, additional energy at US$0.027 per unit

On all plans: unlimited users for free, WhatsApp templates included, campaigns, calendar and catalog. Free 8-day trial with 350 energy, no card required.

Mercately: powerful, but the price says it all

Mercately is a robust platform with good AI capabilities for WhatsApp. But its pricing model is designed for medium and large companies. At 250 USD/month for 1,000 contacts served by AI (with charges of 0.15-0.25 USD per additional contact), a small business is paying a significant premium.

To put it in perspective: a customer who messages you 15 times over 3 days deciding on a purchase, Mercately counts it as 1 contact served. With TBit, you pay for the ~8-10 AI replies your agent generates, at US$0.027 each = US$0.22-0.27 total. The difference is in the volume: if you have few customers who write a lot, Mercately can work. If you have many customers with few interactions, TBit is drastically cheaper.

LucidBot: the price is misleading

LucidBot advertises 44 USD/month with 20,000 contacts and "unlimited messages". It sounds irresistible. But it works with BYOK (Bring Your Own Key): you bring your own API key from OpenAI, Anthropic or whichever provider you want. The platform doesn't include AI.

The real costs depend on your API usage. With GPT-4 Turbo at ~$0.03 per full reply, 1,000 replies per month cost ~$30 extra. With 3,000 replies, that's ~$90 extra. Plus, you're responsible for managing token limits, API errors and model updates. For a business without a technical team, this quickly becomes a headache.

Manychat: strong on Instagram, weak on WhatsApp

Manychat dominates automation for Instagram and Facebook Messenger. If your main channel is Instagram, it's a solid option at 15 USD/month. But its support for WhatsApp is more recent, its conversational AI capabilities are basic (more based on flows than natural language generation), and it lacks advanced features like smart scheduling or deep integration with inventory.

Chatfuel: the limited veteran

Chatfuel pioneered chatbots for Facebook Messenger. Its approach is still based on templates and predefined flows. For WhatsApp, this means your chatbot follows rigid paths: if the customer asks something outside the flow, it gets lost. In 2026, with generative AI available and accessible, a template-based approach falls short for most businesses.

How to choose: 3 questions that give you the answer

Is your main channel WhatsApp? If the answer is yes, rule out Manychat and Chatfuel. They are better for Instagram and Facebook respectively.
Do you have a technical team to manage API keys? If not, rule out LucidBot. Managing BYOK requires knowledge that not every business has.
Is your monthly budget under 100 USD? If so, TBit is the clear choice. Mercately starts at 250 USD and scales quickly.

In the end, the best tool is the one your business can use sustainably. A 250 USD/month chatbot you can't maintain leaves you worse off than a 45 USD/month one that grows with you.

First time evaluating this? The starting point is the complete guide to the WhatsApp chatbot for businesses: what it can really do, how to get it up and running, and what to expect.