Sierra
by Sierra · San Francisco, USA · Founded 2023
Enterprise agents priced on outcomes
Overview
Founded by Bret Taylor, Sierra targets enterprises that want an agent shaped precisely to their brand, policies and back-end systems rather than a configurable product. Agents take real actions — processing returns, changing subscriptions, updating accounts — behind guardrails that constrain what they may say and do, which is what makes enterprises comfortable letting an agent touch live systems. Outcome-based pricing is genuinely well aligned. The costs are scale and commitment: six-figure annual contracts, an implementation measured in months, and a separate helpdesk still required underneath for human agent workflows.
Our verdict
The strongest option when the agent must take real actions on live systems rather than answer questions, and the guardrail model is what earns enterprise trust. Six-figure contracts and month-long implementations mean it is only rational above serious ticket volume — and you still need a helpdesk underneath.
Best for
Enterprises needing agents that execute transactions, not just answer questions.
Avoid if
You are under roughly 50,000 tickets a year — the commitment cannot pay back.
Pros
- Agents take real actions behind enforceable policy guardrails
- Outcome-based pricing genuinely aligned with results
- Exceptional engineering pedigree and enterprise references
Cons
- Six-figure annual commitments with setup fees
- Implementation measured in months, not days
- Still requires a separate helpdesk for human workflows
Key capabilities
Frequently asked questions
How much does Sierra cost?
Sierra does not publish pricing. Contracts are enterprise-only with outcome-based billing under a committed annual floor, typically in the $100,000 to $600,000 per year range plus implementation.
What does outcome-based pricing mean at Sierra?
You are billed per resolved outcome rather than per conversation or per seat, so unresolved conversations do not generate charges. In practice this sits under a committed annual minimum.
Do I still need a helpdesk with Sierra?
Yes. Sierra is an AI agent layer, not a full helpdesk, so you keep Zendesk, Salesforce or similar underneath for human agent workflows — an additional $55-$175 per agent per month.