An AI chat assistant for a small business costs between $0 and $36 per month on a SaaS platform. For mid-market teams handling higher volumes, the typical range is $100 to $500 per month. Enterprise custom builds start at $75,000 and can exceed $1 million for bespoke solutions with compliance requirements.
Most businesses searching this question are not building a custom enterprise system. They are a small ecommerce store, a growing DTC brand, or a service business that wants to automate customer conversations without hiring more staff.
For that audience, the honest answer is: a capable AI chat assistant costs nothing to start, and between $36 and $150 per month once you need team features and higher conversation volumes.
This guide covers every pricing model, what is included at each price point, the hidden costs most providers do not mention upfront, and how the cost of an AI chat assistant compares to the cost of handling the same queries manually.
The quick answer by business size
Before the full breakdown, here is the direct answer for the most common buyer types.
Business type | Typical monthly cost | What you get |
|---|---|---|
Solo founder or early store | $0 | Free plan with one agent, unlimited chats, AI chatbot, website chat |
Small ecommerce store | $36 to $100 | Team features, WhatsApp, Instagram, Shopify integration |
Growing store, 3 to 5 agents | $100 to $300 | Multi-agent inbox, automation rules, social channels, reporting |
High-volume Shopify store | $300 to $750 | Ticket-based helpdesk, deep order management, advanced AI |
Mid-market business | $500 to $2,000 | Enterprise AI, CRM integration, SLA management, dedicated support |
Enterprise custom build | $75,000 to $1 million one-time | Bespoke AI, proprietary data training, compliance, full integration |
For most readers of this article, the relevant range is the first three rows.
The four pricing models explained
AI chat assistants are priced in four different ways. The model a platform uses determines how your cost scales as your business grows, and choosing the wrong model is one of the most common and expensive mistakes buyers make.
Per seat pricing
You pay a fixed monthly fee for each agent or user who accesses the platform. The number of conversations is usually unlimited or very high within that fee.
This model is predictable and works well for teams with stable headcounts. It becomes expensive when you need to add agents, because each addition increases your monthly bill by a fixed amount regardless of how many conversations that agent handles.
Examples include Zendesk at $55 per agent per month and Intercom at $74 per seat per month. A team of five agents on Zendesk costs $275 per month before any AI add-ons.
Per conversation pricing
You pay based on the number of customer conversations handled each month. Each plan includes a conversation allowance and you pay more as you exceed it.
This model is cost-effective at low volumes but scales unpredictably. A promotion, a product launch, or a viral post that drives a spike in customer contacts can push you well above your plan limit in a single week.
Tidio uses conversation-based pricing on its customer service plans, starting at approximately $24 per month for 100 conversations. A store handling 500 conversations per month would pay more depending on the plan tier.
Per resolution pricing
You pay only when the AI successfully resolves a customer query without human involvement. Unresolved queries that escalate to a human agent are not charged.
This model aligns the platform's incentive with your outcome. You pay more as the AI performs better. It works well for businesses with high query volumes and predictable resolution rates.
Intercom's Fin AI charges $0.99 per AI resolution. Zendesk charges $1.50 per automated resolution. For a store resolving 1,000 queries per month through AI, Intercom costs approximately $990 in resolution fees alone, plus the base seat cost.
Flat rate pricing
A fixed monthly fee regardless of conversation volume, agent count, or resolution rate. The most predictable model for growing businesses.
AeroChat charges $36 per month for team plans with no per-conversation or per-resolution charges. Boei charges $11 per month flat across all channels. This model suits businesses with fluctuating support volumes where predictable costs matter more than marginal optimisation.
What each price point actually includes
Free plans - $0 per month
Genuine free plans exist and are not just trials. AeroChat's free plan covers one agent with unlimited conversations, full AI chatbot capability, website chat, WhatsApp, Instagram, and Shopify integration. There is no time limit and no credit card required.
Tidio's free plan covers unlimited live chat conversations and 50 AI conversations per month. HubSpot Service Hub's free plan covers unlimited agents with one shared inbox and rule-based automation only, no AI.
The honest limitation of free plans: they are designed for single operators or very early-stage businesses. The moment you need more than one agent accessing the same inbox, or the moment your AI conversation volume exceeds the free allowance, an upgrade becomes necessary.
For ecommerce stores, starting with a free chatbot is the practical approach before committing to a paid plan.
Entry-level paid plans - $10 to $50 per month
This range covers the most common starting point for small businesses moving beyond the free tier.
AeroChat team plan starts at $36 per month and includes unlimited agents, unlimited conversations, all social channels, and full WooCommerce and Shopify chatbot integration. No per-conversation or per-resolution charges.
Gorgias starts at $10 per month for 50 support tickets, scaling with volume. For stores with low ticket counts, Gorgias is affordable at entry. For stores handling 500 or more tickets per month, the per-ticket model scales the cost significantly.
Crisp's paid plan starts at $25 per month for basic AI features and two agents. ManyChat's paid plan starts at $15 per month for social channel automation.
Mid-tier plans - $50 to $300 per month
This range covers businesses with meaningful support volume, multiple agents, and requirements beyond basic automation.
Tidio's Growth plan covers higher conversation volumes with more advanced automation. Freshdesk's paid plans start at $15 per agent per month and add automation, social channels, and reporting. Re:amaze charges $29 per month flat regardless of agent count, making it cost-effective for teams of three or more.
For ecommerce stores evaluating tools at this price point, the best customer service apps comparison covers which platforms deliver the most value at this range.
Enterprise plans - $500 to $3,000 per month
This range covers platforms designed for high-volume operations with complex requirements.
Intercom's full suite starts at $74 per seat per month, scaling with agents and AI resolution volume. Zendesk starts at $55 per agent per month with AI add-ons from $50 per agent additional. For a team of ten agents with AI enabled, Zendesk costs approximately $1,050 per month before usage charges.
Gorgias Advanced covers high-volume Shopify stores at $300 to $750 per month depending on ticket volume. For stores processing thousands of orders daily, this range is appropriate.
Custom enterprise builds - $75,000 to $1 million plus
Custom-built AI chat assistants are a completely different product category from SaaS platforms. They involve proprietary AI training on your specific data, bespoke integrations with your existing systems, compliance certification for regulated industries, and ongoing maintenance contracts.
These are built for enterprise organisations in banking, healthcare, and telecoms with specific compliance, security, and integration requirements that no SaaS platform can meet. For ecommerce and small business purposes, this category is not relevant and the cost range is mentioned only to explain why pricing articles quote such wide ranges.
The actual decision for most businesses is between the free plan and the $36 to $300 per month range.
The hidden costs most providers do not mention
The advertised monthly price is rarely the total cost. These are the charges that appear after signup.
WhatsApp Business API fees
WhatsApp charges businesses per conversation through the official Business API. Costs vary by country and conversation type. Service conversations initiated by customers are charged differently from marketing messages initiated by the business.
Some AI chat assistant platforms include WhatsApp API access in their subscription. Others charge it separately. Before selecting any platform that offers WhatsApp support, ask directly whether the WhatsApp API fees are included in the monthly plan or billed additionally.
AeroChat includes WhatsApp Business API access within its plan pricing. For guidance on connecting WhatsApp to Shopify, that guide covers the setup and cost implications.
Branding removal fees
Many free and entry-level plans display the platform's branding on your chat widget. Removing it requires a paid upgrade. Tawk.to charges $19 per month specifically to remove its branding from an otherwise free platform. Tidio's branding removal requires the Growth plan.
If a branded chat widget is acceptable for your business, this cost does not apply. If customer-facing branding matters, factor the removal fee into your total cost comparison.
Overage charges
Per-conversation platforms charge additional fees when you exceed your monthly conversation allowance. These charges are often not visible in headline pricing and can significantly increase your monthly cost during busy periods.
Always ask: what happens when I exceed my plan limit? The answer determines whether the platform is genuinely predictable or whether a promotion or product launch creates a surprise invoice.
Setup and onboarding fees
SaaS platforms generally do not charge setup fees. Agency-built and custom solutions typically charge $5,000 to $30,000 for initial setup, configuration, and integration work, in addition to ongoing subscription or maintenance costs.
For ecommerce stores evaluating the cost of setting up a Shopify chatbot, the process on modern platforms takes ten to twenty minutes with no setup fees.
AI chat assistant cost vs manual support cost
The business case for an AI chat assistant is strongest when compared to the cost of handling the same queries manually.
A human customer service agent handling support full-time costs approximately $2,500 to $4,000 per month including salary, benefits, and management overhead, depending on region and role seniority.
An AI chat assistant handling sixty to seventy percent of those queries automatically costs $0 to $150 per month at the entry level.
The per-query cost comparison makes this concrete.
Query handling method | Cost per query | Daily cost at 200 queries | Monthly cost |
|---|---|---|---|
Human agent only | $6.00 | $1,200 | $36,000 |
AI handles 65 percent, human handles 35 percent | $2.10 blended | $420 | $12,600 |
AI handles 65 percent, chatbot subscription | $0.18 blended | $36 | $1,080 |
Chatbot subscription only (flat rate) | Fixed $36/mo | $1.20 | $36 |
Human agent cost based on $6 per interaction average including salary, benefits, and overhead. Chatbot cost based on Aerochat team plan at $36 per month flat.
For a store handling 200 customer queries per day, the difference between a manual support operation and an AI chat assistant handling sixty-five percent of those queries is approximately $35,000 per month.
That calculation explains why the AI chat assistant market is growing at nineteen percent annually. The ROI is not marginal.
If you want to measure this for your specific store, the guide on measuring chatbot ROI covers the specific metrics to track.
What you actually need vs what you are being sold
Most AI chat assistant pricing articles are written by platforms trying to justify their own price point. The honest picture is simpler.
For an ecommerce store under fifty orders per day with one or two people handling support, the free plan at $0 per month is the right starting point. AeroChat free plan covers every channel you need including Shopify, Instagram, and WhatsApp ai chat. There is no meaningful reason to pay before you have outgrown it.
For a store at fifty to two hundred orders per day, a flat-rate plan at $36 per month is the right upgrade. You get team features, unlimited conversations, and all channels covered without per-conversation pricing surprises.
For a store at two hundred or more orders per day, Gorgias at $300 to $750 per month or AeroChat team features combined with higher volume handling is the appropriate range, depending on whether ticket management depth or social channel coverage is the higher priority.
For the enterprise decision, the ecommerce help desk guide covers which platforms serve which store size with specific pricing at real volumes.
The per-resolution model from Intercom and Zendesk is appropriate for SaaS businesses with predictable support volume and budget to match. For most ecommerce stores, flat-rate pricing is more practical and more predictable.
Frequently asked questions
How much does an AI chat assistant cost per month?
For small businesses and ecommerce stores, an AI chat assistant costs between $0 and $36 per month on a flat-rate SaaS plan. Mid-market businesses typically spend $100 to $500 per month. Enterprise platforms with per-seat or per-resolution pricing range from $500 to $3,000 per month for teams of five to fifteen agents with high conversation volumes.
Is there a free AI chat assistant for my website?
Yes. Aerochat's free plan covers one agent with unlimited conversations, full AI capability, and WhatsApp, Instagram, and Shopify integration at no cost. Tidio's free plan includes 50 AI conversations per month. HubSpot Service Hub's free plan is rule-based only, with no conversational AI included.
What is the cheapest AI chat assistant for a Shopify store?
Aerochat's free plan is the most capable free option for Shopify stores, including live order data access, WhatsApp, and Instagram on the free tier. The paid team plan starts at $36 per month flat with no per-conversation charges. For a full comparison of free chatbot options for ecommerce, that guide covers what each free plan actually includes.
Why do some articles quote AI chatbot costs of $75,000 or more?
Those figures refer to custom-built AI chat assistants developed from scratch by agencies or software development firms. These are bespoke enterprise systems with proprietary AI training, custom integrations, and compliance certification. They are a different product category from SaaS AI chat platforms. For small and mid-sized businesses, SaaS platforms costing $0 to $500 per month deliver the same customer-facing outcome without the development cost.
Does an AI chat assistant on WhatsApp cost extra?
It depends on the platform. WhatsApp charges businesses per conversation through the official Business API, and some platforms pass this cost through separately. Others include WhatsApp API access within their subscription. Aerochat includes WhatsApp Business API access within its plan pricing. Always confirm whether WhatsApp fees are included before signing up with any platform.
How do I calculate whether an AI chat assistant is worth the cost?
Compare the monthly subscription cost against the time your team currently spends on the queries the chatbot will handle. If your team spends three hours per day on WISMO queries and FAQ responses at an effective hourly cost of $20, that is $1,800 per month in manual support cost. A chatbot handling those queries automatically for $36 per month has a payback period of under one day. The support cost reduction guide covers the specific calculation for Shopify stores.