The honest answer to 'how much does a chatbot cost' is that it depends less on the sticker price than on what the tool counts. Two platforms can both advertise a low entry price and produce wildly different bills for the same page, because one charges for every contact who ever messaged you and the other charges only when artificial intelligence is actually used. This guide explains the three pricing models in the market, shows which kind of business each one hurts, and works through what a real monthly bill looks like.
The most common international model. You pay a monthly fee based on how many unique people have interacted with your page -- 1,000 contacts, 5,000 contacts, 25,000 contacts, each tier costing more. The problem is that contacts accumulate and never leave. Someone who asked one question in January is still on your bill in December. A single viral post can push you up two tiers permanently, and the cost of a customer who never bought anything is identical to the cost of your best repeat buyer. This model punishes reach, which is a strange thing to punish a marketing tool for.
You pay for outbound messages regardless of who sent them or why. It sounds fair until you notice that a well-designed flow sends several messages per conversation -- a greeting, a product card, a confirmation, an order summary. Good automation becomes more expensive than bad automation, which pushes you towards terse, unhelpful bots to save money.
A flat subscription keeps your pages active and unlocks the automation features, and a separate credit balance is consumed only when the AI genuinely does work -- understanding a message, reading a product photo, transcribing a voice note, writing a reply. Rule-based replies, buttons and flows cost nothing to run. This is the model TwingBot uses: ৳499 per month including 100 credits, with credit packs from ৳299 for 500 credits, ৳699 for 1,700 credits, ৳1,299 for 4,200 and ৳2,499 for 9,800. The important property is that your cost tracks AI usage, not audience size, so a viral post does not raise your subscription tier.
Credits go to AI understanding and AI-written replies: human-style instant replies, replies based on text, image or audio understanding, product and stock answers, automatic order collection, courier-ready order preparation and fraud checks. What does not consume credits is equally important -- keyword replies, buttons and drag-and-drop flows run for free. That distinction is the whole cost-control strategy.
Take an honest look at your inbox for a week and count how many messages are one of four questions: delivery charge, address, payment method, delivery time. For most shops that is well over half the volume. Answer all of those with keyword rules and flows and they become free forever. What remains -- the product questions, the photo 'is this available?', the voice notes, the unusual requests -- is exactly what you want AI spending money on, because those are the conversations that turn into orders. A busy page that has done this work often spends less than a quiet page that has not.
A small page with a few hundred messages a month usually stays inside the subscription's included credits: ৳499 total. A growing page with steady daily traffic typically adds one Starter or Growth pack, landing somewhere between ৳800 and ৳1,200. A busy page running paid ads with heavy AI use might add a Business pack for ৳1,299, so around ৳1,800 in total. Compare that to the cost of one person answering messages, and the comparison is not close -- and unlike a person, the bot covers 3am.
Wrong answers. A chatbot that invents stock or quotes an outdated price generates cancelled orders, failed COD deliveries and refund arguments, and every one of those costs more than the entire monthly subscription. This is why the accuracy architecture matters commercially, not just technically: a bot that reads price and stock from your real product database before answering is cheaper to run than a cheaper bot that guesses.
Ignore the headline price and ask what the tool counts. Per-contact pricing charges you for reach you already paid to acquire; per-message pricing charges you for being helpful. Subscription-plus-credits charges you for the AI work you actually use -- and if you move your repetitive questions onto free rule-based replies first, that bill stays remarkably flat while your page grows.
TwingBot is an AI chatbot and ecommerce automation platform for Facebook Messenger, Instagram and WhatsApp. It replies in 70+ languages, answers product and price questions from your real product database, captures orders in chat, checks fake orders and prepares courier-ready deliveries.