Sierra builds a conversational AI platform enabling companies to deploy agents across chat, SMS, WhatsApp, email, and voice channels. The platform supports reasoning through multi-step problems, action execution, and personalized service delivery - moving beyond simple question-answering to handle customer experience workflows end-to-end. Founded in 2023 by Bret Taylor (former co-CEO of Salesforce, former CTO of Facebook) and Clay Bavor (18 years at Google leading AR/VR efforts, Google Lens, and Google Labs), the company operates from offices in San Francisco, New York, Atlanta, London, Singapore, and France.
The technical architecture addresses natural language understanding, dialogue management, and multichannel integration constraints. Deployed agents serve customers including WeightWatchers, SiriusXM, Sonos, and OluKai across health and wellness, media, consumer electronics, and retail verticals. The system handles reasoning and decision-making for complex customer problems while maintaining conversational coherence across interaction channels.
Sierra's positioning centers on authenticity and trustworthiness in AI-driven customer interactions - prioritizing production reliability over experimental capabilities. The platform abstracts multichannel complexity while exposing control over agent behavior, reasoning paths, and action boundaries. Technical work spans conversational AI systems, NLU, agent orchestration, personalization engines, and voice technology integration.