Sierra AI vs Intercom Fin pricing: cost per resolution, and what each one actually charges for

Short answer: Intercom Fin publishes a price and Sierra does not. Fin charges $0.99 per outcome on top of seats at $29, $85 or $132 per seat per month. Sierra sells outcome-based pricing with no public rate at all, no pricing page, and resolution criteria that are negotiated into each contract. Every per-resolution dollar figure you have seen quoted for Sierra is a third-party estimate, not a Sierra number.

Last updated August 2026. Sierra's pricing statements read from its own outcome-based pricing post on August 23, 2026; Fin's rates read from intercom.com/pricing the same day. We sell a competing product in a different category, so check the arithmetic rather than trusting it.

How much does Sierra AI cost?

Sierra does not say. There is no pricing page: sierra.ai/pricing returned a 404 when we checked it on August 23, 2026, and none of the 666 URLs in Sierra's own sitemap is a pricing page. What Sierra publishes instead is a philosophy post, "Outcome-based pricing for AI agents", written by Elliot Greenwald and dated December 10, 2024, which explains the model in detail and contains no dollar figures, no percentages and no rate card.

That matters more than it sounds, because the figures circulating for Sierra look authoritative and are not. Roundups routinely quote $1 to $2.50 per resolution, setup fees of $50,000 to $200,000, and first-year totals of $200,000 to $350,000. Those are vendor-blog and consultancy estimates. Sierra has never published any of them. If you are building a business case, the only honest input for the Sierra column is "quote required".

How much does Intercom Fin cost per resolution?

Fin is priced at $0.99 per outcome, and Intercom publishes both the rate and the definition. An outcome is counted when a customer confirms their issue is resolved, or they do not ask for more help after Fin responds, or Fin completes a workflow, which Intercom notes includes handoffs. You are charged once per conversation even if Fin answers several questions inside it.

Fin sits on top of a seat plan rather than replacing one. Intercom lists Essential at $29 per seat per month, Advanced at $85 and Expert at $132. So the real monthly number is seats plus outcomes, not outcomes alone. Five thousand resolved conversations a month is $4,950 in Fin charges before a single seat is counted; add ten Advanced seats and you are at $5,800.

Sierra vs Intercom Fin pricing, side by side

What counts as a resolution, and why the two vendors disagree

This is the part that decides your invoice, and the two companies have taken opposite positions on the same event.

Intercom counts a completed workflow as an outcome and states that this includes handoffs. Sierra's post says that if a case needs to be escalated, in most cases there is no charge. So the identical event, an AI agent deciding it cannot finish the job and passing the customer to a person, is billable on one platform and generally free on the other. If your deflection rate is mediocre in month one, which is normal, that single difference moves the bill more than the headline rate does.

The second divergence is subtler and worth reading twice. One of Fin's three published triggers is that the customer does not ask for more help after Fin responds. Silence counts. A customer who gives up and abandons the conversation is, mechanically, indistinguishable from one whose problem was solved, and both bill $0.99. That is not a criticism of the definition so much as a warning about what a resolution rate measures: it is a billing event, not a satisfaction score.

The two words that do most of the work in Sierra's pricing post

Sierra's outcome-based pitch is usually summarized as "you only pay when the agent resolves the issue". Sierra's own wording is more careful than that, and the qualifier appears twice. On unresolved conversations: "If the conversation is unresolved, in most cases, there's no charge." On escalations: "if a case needs to be escalated, in most cases, there's no charge."

"In most cases" is doing real work in both sentences. It tells you the exceptions live in the contract rather than in the marketing, which is consistent with the rest of the post: Sierra says it provides "clear, agreed-upon criteria for each outcome upfront". Read plainly, that means no two Sierra contracts necessarily price the same customer interaction the same way. It also means a per-resolution figure quoted from one Sierra customer tells you very little about what yours would be, and that comparing a Sierra per-resolution rate against Fin's $0.99 is not a like-for-like comparison even if you somehow obtained the number.

Sierra is also explicit that pure outcome pricing is not always the model. The post says that where outcome-based pricing is not the best fit, Sierra will "create a blended pricing approach", giving routing and greeter-style interactions as traffic that "may align better with consumption-based pricing, where payment is based on conversation count, regardless of the outcome". So part of a Sierra contract can bill exactly like the consumption model outcome pricing is sold as an alternative to.

Which one should you buy?

Pick Fin if you want to model the cost before you talk to anyone. The rate is public, the definition is public, and you can compute a defensible range in ten minutes from your own conversation volume and an assumed deflection rate. Fin also suits teams already running Intercom, where the agent sits on data and workflows you have configured.

Pick Sierra if you are an enterprise with high-value, complex resolutions and the leverage to negotiate. Sierra's model genuinely does align incentives, and its argument against legacy vendors is a fair one: a provider whose revenue depends on seat licenses has a structural conflict when its AI reduces the number of seats you need. Sierra is worth the sales process when the outcomes are valuable enough that paying per successful one beats paying per seat, and when you have the procurement muscle to pin down the criteria and the exceptions before signing.

One caution that applies to both. A billed resolution is a billing event, and neither vendor's meter tells you whether the customer left happy. Before you tie a budget to a resolution rate, make sure you can see what customers actually say afterwards, which in practice means pulling tickets, reviews and product feedback into one view of what users are telling you rather than reading the deflection dashboard alone. The gap between the two numbers is where support budgets get argued about.

Where a flat-rate agent fits, and where it does not

We should be straight about the boundary, because it is a real one. Sierra and Fin are customer-facing support agents built to deflect high volumes of inbound consumer conversations. WorkAgent is not that, and if consumer support deflection is your problem, the two vendors above are the right category and we are not.

What we do is the back-office half of the same job: research, lead lists, outreach drafts, inbox triage, data entry and recurring reports, at $149 a month for the whole account with no seats and no per-outcome meter. The relevant comparison is not deflection rate, it is whether your bill should move with volume at all. Consumption and outcome models both charge you most in the months the work is heaviest. That is defensible when each unit is tied to revenue, as a saved cancellation genuinely is, and uncomfortable when the volume tracks a backlog instead. If you are pricing agent platforms more broadly, the same arithmetic for Salesforce is on our Agentforce pricing page, the Microsoft equivalent is on Copilot Studio pricing, and the license-by-license breakdown is on Copilot license cost.

Is Sierra AI worth it?

It depends on a number Sierra will not give you until you are in a sales process, which is itself the most useful thing to know going in. Budget for a quote-driven enterprise purchase with implementation effort attached, and do not build a business case on the $1 to $2.50 per resolution figures floating around, because no Sierra source supports them.

Does Sierra AI charge for escalations?

In most cases, no. Sierra's own post states that if a case needs to be escalated, in most cases there is no charge, and the same qualifier appears on unresolved conversations. Because Sierra agrees outcome criteria with each customer individually, the exceptions to "most cases" are defined in your contract rather than published, so it is a question to settle in writing before signing.

What is the difference between outcome-based and consumption-based pricing?

Consumption pricing charges for activity, such as conversations handled or API calls made, whether or not anything useful came of it. Outcome-based pricing charges only when a defined result is achieved, such as a resolved conversation or a saved cancellation. Sierra's own comparison places traditional seat pricing at high risk of wasted spend, consumption at medium and outcome-based at low. The catch is that someone has to define the outcome, and that definition is where the negotiation lives.