AI customer service pricing is confusing because vendors charge in different units. Some bill per resolution, some per conversation, some per agent seat, and the enterprise agents do not publish a price at all. The sticker number rarely equals your bill, what matters is your ticket volume and how much the AI resolves on its own. Here is how the pricing actually works, with every tool’s entry point.
The two pricing models
- Usage-based (per resolution or conversation): you pay only when the AI does work. Intercom Fin is $0.99 per resolution, Salesforce Agentforce $2 per conversation, and Zendesk and Gorgias bill AI resolutions on top of a base plan. Predictable per unit, but it scales with volume.
- Per-seat (per agent per month): the classic help desk model. Freshdesk from $19, Zendesk Suite from $55, with AI often added on top.
- Quote-only (enterprise): Sierra, Decagon, Ada and Cresta price on outcomes and volume; expect a sales conversation, not a checkout.
Entry prices compared
| Tool | App Score | Best for | Starting price |
|---|---|---|---|
| Tidio | 7.7/10 | Small business | Free; paid from ~$29/mo |
| Gorgias | 7.8/10 | Ecommerce | From $10/mo + AI resolutions |
| Freshworks Freddy | 7.9/10 | Value | Freshdesk from $19/agent/mo (yearly plan) |
| Intercom Fin | 8.4/10 | Proven all-rounder | $0.99 per resolution; Fin from $49/mo |
| Zendesk AI | 8.2/10 | Full help desk | Suite from $55/agent/mo + AI resolutions |
The cheapest real start is Tidio (free plan) and Gorgias ($10/mo). Freshworks Freddy is the value help desk at $19 per agent per month billed yearly. Intercom Fin and Zendesk AI cost more but are the most capable. Enterprise agents like Sierra and Decagon are quote-only, see our AI customer service agents guide.
How to estimate your real monthly cost
Start from volume, not the sticker price. Take your monthly ticket count, estimate the share an AI agent can resolve (30 to 60 percent is common for front-line questions), and multiply by the per-resolution or per-conversation rate. Add seat costs for the human agents who handle the rest. A tool at $0.99 per resolution handling 2,000 resolutions a month is roughly $2,000, often far less than the agent hours it saves, but model your own numbers before you commit.
Hidden costs to watch
- AI on top of seats: help desks like Zendesk bill AI resolutions separately from the per-agent price.
- Volume floors: enterprise agents like Ada can require a large annual commitment.
- Overage rates: confirm the price once you pass your included resolutions.
- Onboarding and setup fees: more common on enterprise and quote-only tools.
Per-resolution or per-seat: which is cheaper for you?
The cheaper model depends entirely on your volume and how much the AI resolves. A worked example makes it concrete. Say you handle 3,000 support tickets a month. On a per-resolution agent at roughly $0.99, if the AI resolves half of them (1,500), that is about $1,500 a month in AI charges, plus seats for the agents who handle the rest. On a per-seat help desk, five agents at $55 each is $275 in seats, but you then add AI resolution charges on top, and you still need enough agents to cover what the AI does not resolve.
The pattern that emerges: per-resolution pricing tends to win when your AI resolution rate is high and your ticket volume is moderate, because you pay only for outcomes. Per-seat plus add-on AI can win when volume is very high and predictable, or when you value a fixed, forecastable bill. Quote-only enterprise agents only make sense at large scale, where a negotiated outcome-based deal beats retail per-resolution rates. Before committing, build a simple spreadsheet: your monthly tickets, an honest resolution-rate estimate from a trial, the per-unit AI price, and the seats you still need. The tool that looks cheapest on its pricing page is often not the cheapest for your actual volume.
The bottom line
The cheapest way to start is a free plan (Tidio) or a $10/mo store plan (Gorgias); the best value help desk is Freshworks. Usage-based agents like Intercom Fin are predictable per unit and often the best economics at scale. Model your volume and resolution rate, start on a free tier, and scale once the numbers prove out.
Frequently Asked Questions
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Related guides: Zendesk against cheaper help desks Freshdesk and Freddy AI costs compared
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