Sierra

Build AI agents for customer service across voice and messaging

Meet Sierra

Sierra is a conversational AI platform that helps businesses build agents for customer service and other customer-facing workflows. A single agent can work across voice, chat, email, SMS, and WhatsApp, using company knowledge and connected systems to answer questions and complete tasks such as handling returns or checking an order.

Teams can use Agent Studio to configure workflows, knowledge sources, integrations, and brand behavior without writing code. Ghostwriter lets them describe changes in plain language, while simulations test how an agent responds before release. Built-in monitoring, conversation analysis, and action traces help teams investigate problems and improve performance. Sierra also supports passing conversations to human staff with context, so businesses can combine automated service with their existing care teams.

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Product details

Website: sierra.ai
Status: Launched
Category: Business & operations
Listed: Oct 20, 2026

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AI AI agents Automation Conversational AI Customer support

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