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Sierra vs Tidio Lyro
A plain-English comparison to help you choose between them.
Same job at opposite ends of the market, and the buying process tells you more than the feature list. Sierra is enterprise: one governed agent resolving conversations end to end across chat, voice, SMS, WhatsApp, email and a ChatGPT channel, with Ghostwriter turning procedures into production agents and outcome-based pricing sold through a conversation. Lyro is the entry path, answering pre-sales, order status, returns and policy questions on the site with quick setup and a handoff to live chat when it reaches its limit. Pick by the volume you are handing over, because there is no trial-and-buy door on the enterprise side and no enterprise governance on the SMB one.
Side by side
- Summary
Sierra is an enterprise AI agent platform for customer service, founded by Bret Taylor and Clay Bavor.
- Best for
- Resolving customer conversations end to end across chat and voice
- One governed agent deployed across chat, SMS, WhatsApp, email, voice and ChatGPT
- Building production agents from plain-English descriptions with Ghostwriter
- Cost
- Enterprise
- Ease
- Openness
- Hosted service
- Data
- Customer conversations and connected customer records flow through a closed platform. The Agent Data Platform holds agent memory and integrations into your customer systems, so procurement should treat it as a core data processor. Deployments reportedly handle regulated interactions such as insurance claims and financial services conversations, where AI agent outputs need human oversight and audit trails, automated customer decisions may trigger consumer-protection and disclosure obligations, and the platform does not substitute for compliance review of agent behaviour.
- Summary
Tidio is live chat for small and e-commerce businesses with Lyro, an AI agent that answers customers from your help content: pre-sales questions, order status, returns and policies handled on the site, with a handoff to live chat when the bot reaches its limit.
- Best for
- SMB and e-commerce chat with an AI agent included
- Answering pre-sales and order questions on the site
- Automating returns and policy responses from help content
- Cost
- Freemium (Free tier + paid plans)
- Ease
- Openness
- Hosted service
- Data
- Lyro answers from your website content and support material within Tidio's platform terms. Keep an eye on conversation allowances as volume grows, since AI conversations are metered.
Pricing
- Sierra
- No published price
- Tidio Lyro
from $32.50·from $300·Custom
Prices as of August 2026.
- Core
- from $32.50per monthbilled annually; $39 per month if billed monthly
- Plus
- from $300per month
- Premium
- Price on applicationno list price published
Common questions
What does outcome-based pricing mean for a budget?
That budgeting starts with a resolution forecast rather than a seat count, and that the bill grows as the agent succeeds. Sierra publishes no rate card and sells through a sales conversation, so smaller teams and anyone wanting to trial a bot this afternoon are outside the shape entirely. Lyro's entry pricing is the opposite proposition.
Where does Lyro stop being enough?
At governance and routing. Large-enterprise needs outgrow it: deep customisation, complex routing and integration depth belong to the platforms priced for them. The practical trigger is usually channel spread rather than volume, since a business answering on the website is well served, and one answering across voice, WhatsApp and email is not.
What do both depend on entirely?
The documentation beneath them. Lyro answers only as well as the docs behind it, so thin content means thin answers to real customers, and Sierra's agents are built from procedures and transcripts. Neither invents knowledge the business has not written down, which makes content quality the first project in either deployment rather than a follow-up.
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Tool facts last checked August 2026