Sierra AI Pricing: What an AI Customer Service Agent Costs, and What SPIRITT Costs for the Whole Workforce
Sierra prices one job, customer service conversations, per outcome on a sales-quoted contract. SPIRITT prices a whole AI workforce that codes, ships and runs sales, ops, admin, engineering and customer service, from $32 a month.
Sierra AI pricing is outcome-based and sales-quoted: Sierra charges an agreed rate each time its customer service agent completes an agreed outcome, such as a resolved support conversation, a saved cancellation or an upsell, and publishes no rate, no price page and no self-serve plan. Every number is set in an enterprise contract. What you buy is a customer experience agent on chat, voice, SMS, WhatsApp, email and ChatGPT. SPIRITT prices the whole AI workforce instead: Starter $32, Pro $256 and Max $1,024 a month, plus custom Enterprise, and every plan runs customer service agents and also codes, ships and runs sales, ops, admin and engineering work end to end.
How much does Sierra AI cost?
Sierra does not publish a price. Its site describes the model: you pay when the software achieves a specific, valuable outcome. Sierra's own pricing post lists the kinds of outcome it bills, such as a resolved support conversation, a saved cancellation, an upsell or a cross-sell, and says that in most cases an unresolved conversation costs nothing. For routing or greeter-style calls that do not aim for an outcome, Sierra says it can blend in consumption pricing, paid per conversation.
What that means for a buyer:
- The rate is negotiated. You learn the price per outcome only inside a sales process.
- The definition matters as much as the rate. What counts as "resolved" is written into the contract, so read it closely.
- The scope is customer experience. The contract covers agents that talk to your customers. Internal work, sales operations outside the conversation, admin and engineering are outside it.
- Delivery is engineer-led. Sierra's agent development team builds and tunes the agent with you, so changes run through that relationship.
Cost at a glance
| Item | Sierra (Nov 2026) | SPIRITT (Nov 2026) |
|---|---|---|
| Public price | Sales-quoted, not public | Starter $32/mo, Pro $256/mo, Max $1,024/mo; Enterprise custom |
| Billing unit | Per agreed outcome (resolved conversation, saved cancellation, upsell); some calls per conversation | Credits per month, one balance for the whole organization, no seats |
| Try before a contract | No self-serve plan or public trial | Sign up and test on your own tickets the same day |
| What the price covers | Customer experience agents on chat, voice, SMS, WhatsApp, email and ChatGPT | Customer service agents on voice, WhatsApp, SMS, web chat and email, plus agents for sales, ops, admin and engineering and a coding agent that builds and deploys apps |
| Who changes the agent | Sierra's agent development team with yours | Your team, directly; Enterprise adds forward-deployed engineers |
| Models | Chosen and managed by Sierra | SPIRITT composes Claude, GPT, Gemini, Grok and its own Kay models within each task |
Sierra AI pricing vs SPIRITT pricing: what each price buys
What you actually get for the money
With Sierra: a branded customer experience agent. It answers customers across channels, connects to systems of record like order management and CRM, and is optimized by Sierra's team around the outcomes in your contract. It is a point solution for one function: customer service and the revenue moments inside customer conversations.
With SPIRITT: the same customer job, plus the rest of the company on one bill. SPIRITT runs branded customer agents on voice, WhatsApp, SMS, web chat and email, buys phone numbers and runs an AI call center that answers, books and escalates to a human. The same workspace and shared context also run sales follow-ups, operations, admin and finance tasks, and a state-of-the-art coding agent builds, deploys and maintains the internal apps your team needs. SPIRITT composes the best models from every lab within each task, and composing the best of every lab beats any single-lab subset on capability and price. Every step, tool call and change is visible to your team.
SPIRITT plans and what they cover
| Plan | Price | Monthly credits | Fits |
|---|---|---|---|
| Starter | $32/month ($320/year) | 260 | Testing a support agent on real tickets and first workflows |
| Pro | $256/month ($2,560/year) | 2,150 | A live support queue plus regular sales, ops and engineering work |
| Max | $1,024/month ($10,240/year) | 9,000 | High-volume agents running around the clock across teams |
| Enterprise | Custom | Custom | Forward-deployed engineers, SSO, SCIM, audit logs, budgets by team, bring-your-own-cloud or air-gapped |
All three self-serve plans include the same features; they differ in credits. One-time top-ups add credits any time. Full details: SPIRITT pricing.
Sierra pricing vs a whole AI workforce
The question to ask is the cost of the job you need done, across the company. If customer service conversations are the only job, compare a Sierra outcome rate against what your volume uses on SPIRITT credits, after testing SPIRITT on your own tickets. If customer service is the first step of a wider AI transformation, a CX-only contract means a second, third and fourth vendor for sales, ops and engineering. SPIRITT is the operating system for AI transformation: one workforce, one balance, one place where customer insights flow into product and sales work.
Related: Sierra AI alternatives, SPIRITT vs Sierra, Decagon pricing, Wonderful AI pricing.
FAQ
How much does Sierra AI cost?
Sierra AI does not publish a price. It charges per outcome, an agreed rate each time its agent resolves a conversation, saves a cancellation or completes another agreed result, with the rate set in an enterprise contract. SPIRITT starts at $32 a month (Starter), with Pro at $256 and Max at $1,024, and covers customer service plus sales, ops, admin and engineering work.
Is Sierra AI pricing public?
No. As of November 2026 Sierra has no pricing page, rate card, free trial or self-serve plan. Its pricing model is public; the numbers are sales-quoted, not public.
What is Sierra's outcome-based pricing?
You pay when the AI agent achieves an agreed outcome, such as a resolved support conversation, a saved cancellation, an upsell or a cross-sell. In most cases an unresolved or escalated conversation is not charged, and routing-style calls can be billed per conversation instead.
Is there a cheaper alternative to Sierra AI?
SPIRITT lets you test a customer service agent on your own tickets from $32 a month before any contract, and the same plan also runs sales, ops, admin and engineering work. See Sierra AI alternatives for the full comparison.
Does Sierra AI offer a free trial?
No public trial as of November 2026. Access starts with a demo request. SPIRITT is self-serve: sign up and test the real product the same day.
How we checked
SPIRITT publishes this guide. Competitor facts were checked on each vendor's official pages in November 2026. SPIRITT prices come from the live SPIRITT billing catalog; your workspace billing page always shows the current numbers.
