Sierra
Conversational AI agents for customer experience
Last reviewed 2026-06-18
Sierra, founded by Bret Taylor and Clay Bavor, builds branded conversational AI agents that handle customer service and customer experience for enterprises across chat and voice. Agents are configured to follow company policies, take actions in connected systems, and escalate when needed.
What it can do
Branded customer service agents
SupervisedBuilds company-specific agents that answer questions and take actions (returns, subscription changes, order tracking) following configured policies.
sourceVoice agents
SupervisedHandles real-time voice conversations in addition to chat.
sourceAgent supervision and analytics
CopilotTooling to monitor, evaluate, and improve agent behavior over time.
source
Strengths
- +Strong founding team and enterprise traction
- +Voice and chat in one platform
- +Emphasis on guardrails and measurement
Limitations
- −Enterprise-only, contact-sales
- −Less suited to small or self-serve teams
Overview
Sierra builds conversational AI agents for customer experience, focused on enterprise brands that want agents to both answer and act within their systems.
What it does
Agents follow configured company policies to resolve service requests across chat and voice, take actions like returns and subscription changes, and escalate to humans when appropriate. Sierra emphasizes supervision, evaluation, and guardrails.
Pricing
Enterprise, contact-sales.
Best for / not for
Best for enterprises wanting branded, policy-bound service agents across chat and voice. Not aimed at small self-serve teams.
Alternatives
Decagon and Intercom Fin are the closest autonomous-support competitors.
What people are saying
Loved for
- +customer
- +experience
Common gripes
- −architecture
- −enterprise
- −business
Recent mentions
“23 Shortlists in Pharma at Cannes Lions International Festival of Creativity this year. And Anything But Normal for WOMEN | Bayer is one of them. Pharma is always crazy competitive so I'm proud of this and our consistenc”
“Today, I have the privilege of speaking at the Sierra Leone Diaspora Investment Conference 2026 in London on the panel: “How We Built It: Diaspora Entrepreneurs’ Recipes for Success.” As Founder & Director of Smiling Thr”
“The Labadi Community by Ron Timehin Ron Timehin is an award-winning photographer from London, with heritage from Sierra Leone and Nigeria. He specialises in documentary-style storytelling that emphasises human experien”
“A list of 10 of the fastest growing startups of 2026. All likely hiring : Mercor: $1M to $1B ARR in 20 months https://lnkd.in/emNdQ9cQ Synthesia: $0 to $150M ARR https://lnkd.in/eaKitb_7 Harvey: $0 to $200M”
“Excited to share that earlier this week I was admitted to the New York State Bar! For me, this achievement is a reminder of how far determination can take us when we push ourselves. Thank you to all my friends, mentors,”
FAQ
Who makes Sierra?+
Sierra was co-founded by Bret Taylor (former Salesforce co-CEO) and Clay Bavor.
Sources
- Sierra (official site) · accessed 2026-06-18
Last reviewed 2026-06-18