An independent price guide to business chatbots, run from the UKPrices checked

Enterprise AI agent

Sierra: prices and plans

Enterprise customer agents priced on outcomes, such as a resolved claim, a kept subscriber or a sale, agreed contract by contract.

Not estimatedestimate at 50 AI conversations a month
Not publishedno public entry price
None separateAI usage price
Nofree plan

Plans and prices

PlanPriceBillingIncludesSource
ContractCustom, outcome-basedcontractNot capturedsierra.aiChecked 3 November 2026

How you are billed

Outcome-based contracts

We haven't estimated a monthly cost. No public pricing.

Free plan
No free plan
Trial
Demo only
Setup fee
Not published
Add-ons and extra charges
None listed

AI quality

Model
Sierra's own agent platform. Models used not disclosed.
Accuracy controls
Enterprise guardrails
Human handoff
To human teams

We don't test answer quality, and a low price here isn't a recommendation. These are the vendor's own descriptions, or a note that it doesn't give one.

Channels and integrations

Channels
Website, Phone
Integrations
Custom

Who it suits

Best for
Large consumer brands
Strength
Sierra reports more than $400M in annual recurring revenue (October 2026)
Watch out for
No small-business offer

Not confirmed

Sierra pricing page

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