Sierra AI
Enterprises in financial services, healthcare, telecommunications, media, travel, hospitality, retail, and technology that want to deploy AI agents for customer service and engagement.
Overview
Sierra is a conversational AI platform that helps enterprises build and deploy AI agents for customer experience. The company was co-founded by Bret Taylor, former Co-CEO of Salesforce and co-creator of Google Maps, and Clay Bavor, who spent 18 years at Google leading Google Labs and other product efforts. Sierra is headquartered in San Francisco, with offices in New York, Atlanta, London, Singapore, Tokyo, Paris, Madrid, and Toronto. The company has raised $350 million in additional capital at a $10 billion valuation, led by Greenoaks, following a $175 million funding round in late 2024. Sierra reports that 40% of the Fortune 50 partner with the company.
What it does
Sierra provides a platform for building, deploying, and optimizing AI agents that handle customer interactions across channels including chat, SMS, WhatsApp, email, voice, and ChatGPT. The platform includes Ghostwriter, an agent-building tool that creates production-ready, multilingual agents from uploaded SOPs, transcripts, whiteboard photos, or plain-English descriptions. Sierra's Horizon product enables long-horizon planning, customer context memory, outcome optimization, and proactive engagement. The platform also offers Insights Explorer for analyzing agent performance with natural-language queries, automated monitors for flagging conversations needing attention, and tools for running multivariate experiments and observing agent actions. Sierra connects to customers' systems of record, such as order management and CRM systems, to handle tasks like processing insurance claims, returning orders, or originating mortgages.
Key features
- Ghostwriter agent-building tool that creates production-ready agents from plain-English descriptions or uploaded documents
- Multilingual and multichannel deployment across chat, SMS, WhatsApp, email, voice, and ChatGPT in 59 languages
- Horizon long-horizon planning that breaks complex outcomes into steps improving over days or months
- Customer context memory connecting conversations, systems, and touchpoints
- Outcome optimization that personalizes decisions to maximize satisfaction and revenue while adhering to guardrails
- Proactive engagement triggering next-best-action workflows based on real-world signals
- Insights Explorer with ChatGPT-style deep research for analyzing agent performance
- Automated monitoring, multivariate experiments, and observability for agent actions
Use cases
- Processing insurance claims end-to-end
- Returning orders and handling e-commerce customer service
- Originating mortgages
- Enhancing inbound sales call experiences
- Providing 24/7 customer support in multiple languages
- Scaling chronic care management in healthcare
Pricing
Sierra uses outcome-based pricing, where customers pay only when the software achieves specific, valuable outcomes. Pricing is custom and not publicly disclosed. Third-party estimates suggest contracts typically start at $150,000+ annually.
Pricing is gathered from the company's public pages and may change. Check the vendor's site before buying.
Pros and cons
Strengths
- Outcome-based pricing model where customers pay only when the software achieves specific, valuable outcomes
- Proven at scale with 40% of the Fortune 50 as partners
- Deployable in weeks with agents that grow in sophistication
- Built-in guardrails, testing, and automated monitoring for trust and reliability
- Supports complex use cases by connecting to systems of record like order management and CRM
- Founded by Bret Taylor and Clay Bavor with decades of experience at Google, Salesforce, and Facebook
Limitations
- Pricing is not publicly disclosed and is custom, with third-party estimates suggesting contracts typically start at $150,000+ annually
- No self-serve signup or free trial available
- Enterprise-focused platform requiring partnership with Sierra's expert team for deployment
What sets it apart
- Outcome-based pricing model pioneered by Sierra, where customers pay only when the software achieves specific, valuable outcomes
- Ghostwriter agent-building tool that creates production-ready agents from plain-English descriptions or uploaded documents
- 40% of the Fortune 50 partner with Sierra
- Founded by Bret Taylor (former Co-CEO of Salesforce, co-creator of Google Maps) and Clay Bavor (former Google Labs lead)
Ecosystem
Notable customers
Frequently asked questions
What is Sierra's pricing model?
Sierra uses outcome-based pricing, meaning customers pay only when the software achieves specific, valuable outcomes. Pricing is custom and not publicly disclosed.
What channels does Sierra support?
Sierra deploys a single agent across chat, SMS, WhatsApp, email, voice, and ChatGPT, in 59 languages.
Who founded Sierra?
Sierra was co-founded by Bret Taylor, former Co-CEO of Salesforce and co-creator of Google Maps, and Clay Bavor, who spent 18 years at Google leading Google Labs.
What industries does Sierra serve?
Sierra serves financial services, healthcare, telecommunications, media, travel and hospitality, retail and consumer goods, and technology industries.
How does Ghostwriter work?
Ghostwriter builds production-ready, multilingual, multichannel AI agents from uploaded SOPs, transcripts, whiteboard photos, audio recordings, or plain-English descriptions, with built-in guardrails.
Can non-engineers build agents with Sierra?
Yes, Sierra states that all team members can build and optimize AI agents, with or without engineering support.
Sources
This profile was compiled from the company's own pages and public web research.
Last researched August 11, 2026.
Manage this listing
Own this company? Update your listing information.