An AI chatbot for your business costs anywhere from roughly $0 to $500+ per month, depending on which of the 3 routes you take: subscribe to a chatbot platform, hire a dev shop to build one, or own the wiring yourself. That range is useless on its own, so let's break it down with real numbers from real pricing pages.
Here's the part every cost guide skips. The AI doing the actual talking costs a fraction of a cent per conversation. Everything above that is markup. Once you see the split, the pricing question gets a lot easier to answer.
How much does an AI chatbot cost?
Subscribing runs about $25 to $500+ per month. A dev-shop build runs $30,000 to $150,000 upfront. Owning the wiring costs a one-time fee plus a few dollars a month in AI usage. Same chatbot on your website. Wildly different bills.
Here's the side-by-side, using verified prices at a typical small-business volume of about 500 conversations a month:
| Route | Upfront | Monthly at ~500 chats | What happens when volume doubles |
|---|---|---|---|
| Subscribe to SaaS (Tidio Lyro, Intercom Fin) | $0 | roughly $325 to $495 | Your bill doubles |
| Hire a dev shop | $30,000 to $150,000 | ongoing maintenance retainer | Maintenance stays, API costs stay tiny |
| Own the wiring (Allodra model) | from $900 one time | roughly $2 to $5 in AI usage | Your bill goes to maybe $10 |
The rest of this post walks each row, with sources.
What does AI chatbot pricing look like on the big platforms?
Entry plans start around $25 to $50 a month, but the AI conversations are metered on top, and that meter is where the real money is. The advertised plan price is the cover charge, not the tab.
Two verified examples from their own pricing pages:
- Tidio starts at $24.17 a month for 100 billable conversations, with Growth from $49.17 and Plus from $300 plus usage. Their Lyro AI agent is an add-on that starts at $32.50 a month for just 50 AI conversations. That works out to $0.65 per AI conversation.
- Intercom charges $29 to $132 per seat per month, and their Fin AI agent bills from $0.99 per resolution on top of the seats.
So a solo operator can genuinely start under $50 a month. But the moment the AI handles real volume, you're paying $0.65 to $0.99 every single time it answers a question. Hold that number.
How much does the AI model itself cost?
Under 1 cent per conversation. Usually well under. This is the fact the platform pricing pages are built to keep you from doing math on.
The models these platforms run on are sold by the token (a token is a small chunk of text, about 3/4 of a word). Verified prices, straight from the providers:
- OpenAI's GPT-4o mini costs $0.15 per 1 million input tokens and $0.60 per 1 million output tokens.
- Anthropic's Claude Haiku 4.5 costs $1 per million input tokens and $5 per million output tokens. Anthropic's own docs work the example: 10,000 support conversations at about 3,700 tokens each comes to roughly $37 total. That's about a third of a cent per conversation.
Now put the 2 numbers next to each other. The platform charges $0.65 to $0.99 per conversation. The ingredient costs a third of a cent or less. That's a markup somewhere between 150x and 650x, depending on the model and platform. The model is the cheap part. The markup is the product.
To be fair, you're also getting a chat widget, a dashboard, and integrations for that markup. Those are real. They're also solved problems that cost pennies to run, which is the whole point of the next section.
Why does chatbot cost per month keep climbing as you grow?
Because per-conversation pricing is a growth tax: the better your chatbot performs, the bigger your bill gets. You are charged for success, at 150x or more over cost.
Run the math on Intercom Fin at $0.99 per resolution. At 500 resolved conversations a month, that's $495 a month, or $5,940 a year. The raw model cost for those same 500 conversations is about $2. Your reward for the bot doing its job well is a bill that scales in the platform's favor forever.
This is the same rent structure we've written about with CRM platforms that charge you more as you grow. The subscription isn't priced on what it costs to serve you. It's priced on what your growth is worth to them. If you want to see what that gap costs your specific business, run your own numbers through the growth-tax calculator.
And it compounds quietly. Nobody flinches at $32.50 a month. The flinch comes 18 months later, when the bot is handling 2,000 conversations a month and the invoice reads like a car payment.
What does it cost to build a custom chatbot instead?
Dev-shop quotes for an AI chatbot run $75,000 to $150,000, with simple builds starting around $30,000, plus 15 to 20% of the build cost every year in maintenance. That route buys you ownership, but at agency prices.
We broke down exactly what's inside those quotes, and why they're that high, in our full guide to AI chatbot development services. Short version: you're paying senior engineering rates to assemble the same widget, model connection, and dashboard the SaaS platforms already assembled. It can make sense at enterprise scale. For a small business, it's a mortgage on a solved problem.
There's a third route the cost guides never list, because nobody who publishes those guides sells it.
What's the cheapest AI chatbot setup for a small business long term?
Owning the wiring: buy the code once, connect the AI directly to the provider, and your monthly cost drops to actual usage, which is a few dollars. No subscription, no per-conversation meter, no growth tax.
This is the model we built Allodra on. You buy the code one time and own the license. The stack runs on the free tiers of enterprise infrastructure that already exists: Google Cloud, Cloudflare, GitHub, Vercel. The AI is wired direct to the providers, so a conversation costs you what it costs OpenAI or Anthropic to serve it, which we just verified is under a cent. Charter access starts at $900 one time.
Compare 12 months at 500 conversations:
- Subscribe: roughly $3,900 to $5,940 a year, forever, climbing with volume.
- Dev shop: $30,000+ once, plus a maintenance retainer.
- Own the wiring: $900 once, plus maybe $25 to $60 a year in AI usage.
And year 2 is where it gets lopsided. The subscriber pays the whole bill again. The owner pays the usage.
One honest caveat: owning means you (or whoever set it up) are responsible when something needs updating. That's a real trade. It's also the same trade every business already makes when it owns its website instead of renting a page builder.
If the conversations you're losing are phone calls rather than website chats, the same 3-route math applies to voice. We've run those numbers separately in our guide to the AI receptionist for small business, and the markup gap there is even uglier, because voice minutes get metered too.
The bottom line on AI chatbot cost: the question was never "how much does a chatbot cost." It's "how long do you want to keep paying for one." Renters pay monthly, forever, more as they grow. Owners pay once, then pay pennies. Get the number for your own volume before a pricing page picks it for you.