Choose Sierra
Customer service AIPick Sierra when the job is handling high-volume customer conversations and you can carry an enterprise contract.
Sierra talks to your customers, and does it at a scale few can match. Beagle talks to your team - the internal teammate spanning sales, ops, support and recruiting behind the scenes.
1,000 free credits to start. No credit card. Working in five minutes.
Pick Sierra when the job is handling high-volume customer conversations and you can carry an enterprise contract.
Pick Beagle when the person you are missing is internal, and you want to start this afternoon without a sales cycle.
Sierra is a customer service AI. An enterprise platform for customer-facing AI agents across chat, voice, email and SMS. Six capabilities, marked the same way for both.
| Capability | ||
|---|---|---|
| Lives in Slack and Microsoft Teams | NoYour customer channels - chat, voice, SMS and email. | YesSlack and Microsoft Teams, as a teammate. |
| Reads your team's channels | NoCustomer conversations and your systems of record. | YesEvery channel it is invited to, scoped to what each teammate can see. |
| Speaks up without being asked | PartialReactive by design, with proactive outreach campaigns. | YesPipes up unprompted when something needs you. |
| Acts across your whole stack | PartialYour billing, order and CRM systems. | YesDrafts and does the work across ~2,700 connected apps. |
| Remembers your team over time | PartialRemembers the customer, not your team. | YesRemembers your tone, your people and what you decided. |
| Waits for approval before acting | NoEscalates to a human rather than asking first. | YesAlways waits for your nod before anything goes out. |
Worth saying plainly: these six are the things Beagle is built to do, so they flatter Beagle. Sierra is a customer service AI and is not trying to do most of them - a low score here is a difference in job, not a fault. What Sierra does better is the other half of the picture.
Published prices only. Where Sierra does not publish one, we say so instead of guessing.
Nobody switches on a page that pretends the other tool is rubbish. Here is the honest case for Sierra.
The shape of work Sierra was not built for.
Beagle is a teammate in Slack and Microsoft Teams, not a tab you switch to. It reads the channels it is invited to and answers in the thread.
It drafts the reply, updates the record and chases the action item across ~2,700 tools - then waits for your nod before anything goes out.
Correct it once and it remembers. Over time it knows your tone, your accounts and your decisions - the part Sierra leaves to you.
If you want an AI that lives in Slack and Microsoft Teams, reads your channels, and does the work rather than waiting to be asked, yes. Sierra talks to your customers, and does it at a scale few can match. Beagle talks to your team - the internal teammate spanning sales, ops, support and recruiting behind the scenes.
Sierra is a customer service AI: An enterprise platform for customer-facing AI agents across chat, voice, email and SMS. Beagle is an AI teammate that sits in your Slack or Microsoft Teams channels, reads the thread, remembers your team, and drafts or does the work across roughly 2,700 connected apps - always pausing for your approval first.
Pick Sierra when the job is handling high-volume customer conversations and you can carry an enterprise contract. Sierra is genuinely strong at: Outcome-based pricing: you pay per resolution rather than per seat. Voice, chat, SMS, email and ChatGPT handled by one agent. Customer memory that carries preferences and history across conversations.
It depends on the job. Pick Beagle when the person you are missing is internal, and you want to start this afternoon without a sales cycle. Plenty of teams run both - Beagle covers the day-to-day work inside chat and hands off to the specialist tool where it is better.
Yes. Beagle lives natively in both, reading only what each teammate can see and waiting for your nod before it acts.
Beagle is free to start - 1,000 credits on signup, no credit card. A $49/month membership adds 5,000 credits every month, with one-time top-up packs when you need more. Sierra prices outcome-based, quoted per contract.

Try Beagle free for one seat and see how it compares to Sierra on your own work.
Give me your website and I will show you what I would actually run, on your business, not a demo one. No account, no card.
I only read what is public. Nothing is saved to your name until you say so.