Alternatives to Sierra
Conversational AI agents for customer experience
Sierra ranks #4 of 7 in AI customer support agents, with an Alt Score of 86. It is proprietary. 11 of 13 checklist rows are verified against a public source.
Large enterprises in retail, financial services, healthcare, travel, and telecom that want an AI agent to autonomously handle customer support conversations across voice, chat, email, and messaging, and are open to outcome-based pricing instead of per-seat licensing.
A platform (Agent Studio, Agent SDK, Agent Data Platform) for building and managing AI support agents that converse in 55+ languages, take real actions against your systems of record (refunds, order changes, reservations), and hand off to human agents with full context when needed. Insights and Explorer add analytics, testing, and natural-language reporting on top.
You connect Sierra to your knowledge base and back-end systems, then define agent journeys, tools, and guardrails no-code in Agent Studio or as code via the Agent SDK; the agent is deployed once and runs across phone, chat, SMS, email, and ChatGPT, with Sierra billing based on the outcomes it delivers rather than seats or messages.
Why people leave Sierra
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Ranked alternatives
Ordered by Alt Score. Click any score to see the breakdown.
Feature comparison
Rows come from the AI customer support agents checklist (17 rows). Human-verified cells only. ? means the value has not been verified.
| AI customer support agents checklist | Sierra | Cognigy | Fin by Intercom | Decagon | eesel AI | Ada |
|---|---|---|---|---|---|---|
| Pricing model | ||||||
| Starts at | ||||||
| License | ||||||
| Platforms | ||||||
| Autonomous ticket resolution | ||||||
| Agent copilot / suggested replies | ||||||
| Omnichannel (email, chat, voice) | ||||||
| Voice support | ||||||
| Helpdesk integrations (Zendesk, Intercom) | ||||||
| Knowledge base ingestion | ||||||
| Actions / API workflows (refunds, orders) | ||||||
| Human escalation / handoff | ||||||
| Analytics & resolution reporting | ||||||
| Multilingual | ||||||
| Guardrails / accuracy controls | ||||||
| Self-hosted / private deployment | ||||||
| SSO / SAML |
Every fact and feature listed for Sierra is verified against its own pages. Each alternative is sourced on its own page.
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Pricing model Usage-based verified 2026-07-12
At Sierra, we've pioneered an entirely new business model - outcome-based pricing - where you pay only when the software achieves specific, valuable outcomes.
https://sierra.ai/product -
License Proprietary verified 2026-07-12
Sierra and its licensors exclusively own all right, title and interest in and to the Services, including all associated intellectual property rights.
https://sierra.ai/terms-and-conditions -
Status active verified 2026-07-12
We're looking for exceptional people to join our growing team.
https://sierra.ai/careers -
Autonomous ticket resolution Yes verified 2026-07-12
With Sierra, your AI agent doesn't just answer questions, it takes action to solve your customers' problems, improving self-service resolution rate and average handle time.
https://sierra.ai/product/meet-your-agent -
Agent copilot / suggested replies Yes verified 2026-07-12
Deliver grounded, ready-to-send responses - Suggest real-time responses, drawing on operating procedures and knowledge bases your care representatives are trained on.
https://sierra.ai/product/channels -
Omnichannel (email, chat, voice) Yes verified 2026-07-12
Create consistent experiences across voice, chat, email, and WhatsApp in 59 languages — available 24/7/365.
https://sierra.ai/product -
Voice support Yes verified 2026-07-12
Delight your customers across inbound and outbound calls.
https://sierra.ai/product/voice -
Helpdesk integrations (Zendesk, Intercom) Yes verified 2026-07-12
Leverage 40+ pre-built integrations to instantly connect your agent with third-party knowledge bases, systems of record, and contact centers.
https://sierra.ai/product/agent-studio -
Knowledge base ingestion Yes verified 2026-07-12
Knowledge management - View, manage, and edit knowledge data such as Help Center content, FAQs, and policies that ground your agent.
https://sierra.ai/product/agent-studio -
Actions / API workflows (refunds, orders) Yes verified 2026-07-12
Securely connect to your systems of record—from order management systems to CRM—so your agent can take action on your customer's behalf, like processing an exchange or changing a reservation.
https://sierra.ai/product/meet-your-agent -
Human escalation / handoff Yes verified 2026-07-12
When your AI agent can't resolve an issue, it gathers key details, summarizes the conversation, and smoothly hands it off—so your team is ready to jump in without missing a beat.
https://sierra.ai/product/meet-your-agent -
Analytics & resolution reporting Yes verified 2026-07-12
Reporting - Understand how your agent is performing and impacting your business with powerful analytics and custom reports.
https://sierra.ai/product/insights -
Multilingual Yes verified 2026-07-12
Speak in over 55 languages - Produce fast, accurate support with native-level fluency and seamless mid-conversation language switching.
https://sierra.ai/product/voice -
Guardrails / accuracy controls Yes verified 2026-07-12
Supervisor models - To mitigate risks inherent in the non-deterministic nature of LLMs, Sierra wraps LLMs in supervisory layers to reduce hallucinations, ensure security, and prevent abuse.
https://sierra.ai/product/trust-and-reliability