About Sierra
Sierra is a platform for building customer service and sales agents that work across chat, voice and messaging channels. In July 2026 it announced Horizon, which lets agents pursue longer goals across several inbound and outbound interactions rather than a single conversation. It is sold to large companies.
Key Features
Agents across chat, voice and messaging
Long-running multi-step goals
Inbound and outbound interactions
Agent building without engineering
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Launch Details
Category
Website
Pricing
Paid
Launch Date
October 12, 2026
About the Creator
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