Sierra
Sierra is a conversational AI company that builds AI agents for businesses.
About Sierra
Sierra is a conversational AI company that builds AI agents for businesses.
Products
Sierra's platform for building, optimizing, personalizing, and scaling highly effective AI agents.
Build or modify your agent simply by describing how you want your agent to behave.
Long-horizon agents that get more intelligent with every interaction, acting on signals and deciding what's next, staying with work until done across days or months.
Measure what matters, test what works, and understand every agent decision with analytics, experimentation, and observability built for continuous improvement.
The agent-optimizing agent.
Deploy a single agent across voice, chat, SMS, WhatsApp, email, and ChatGPT in 59 languages, available 24/7/365.
Conversational AI for inbound and outbound phone calls with low-latency voice interactions, 55+ languages, and voice payment collection via Level 1 PCI compliant infrastructure.
What customers say
“Sierra is a game-changer for meeting subscribers’ needs. For every interaction, we gain valuable insights.”
“Home ownership is personal and our agent is personal. We always say clients vote with clicks, and clients love the agent.”
“Sierra's Agent SDK stood out because it let us write customer journeys as code, track changes, and build sophisticated logic without giving up our development workflows. It was the first solution that truly met our technical bar.”
- Sierra Agent OS
Sierra's Brex story explicitly identifies Agent OS and describes a customer agent retrieving account data, card-delivery status and transaction details. It reports answers delivered 90% faster and over 15,000 customer…
Case study - Case study
Sierra reports that Airtable launched its agent on chat within four weeks and added email seven days later. The story reports an 80% AI resolution rate and workload equivalent to roughly 95 full-time support agents.
Case study - Case study
Sierra reports that OluKai built an AI agent for customer service and returns guidance. The inspected body reports roughly 70% resolution without human intervention and customer satisfaction of about 4.5 out of 5.
Case study
Security and compliance
As reported by Sierra. Ask for audit reports before you buy.
- ISO/IEC 27001Compliant
- ISO/IEC 42001Compliant
- SOC 2 Type IICompliant
- HIPAACompliant
- PCI DSSCompliant
- CSA STAR Level 1Compliant
- FedRAMPCompliant
- Data encryption utilized
- Penetration testing performed
- Unique production database authentication enforced
- Continuity and Disaster Recovery plans tested
- Unique account authentication enforced
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