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For Sierra, from 🤫 hussh

The customer's side of the conversation.

Sierra builds the agents enterprises use to serve their customers. We build the agent that represents the customer. Put the two together and support, billing and retention become a conversation between two capable agents, with consent and a receipt on the customer's side.

Let's build togetherFor the Sierra team
The ideaTheir workTogetherFor the teamHow we start

Why Sierra

You made the enterprise agent real.

Bret Taylor and Clay Bavor founded Sierra in 2023 and brought it out of stealth in February 2024. Its agents resolve customer conversations across chat, voice, email and more, and Sierra is paid on the outcomes they deliver. That is a bold way to price software, and it puts Sierra on the side of a resolved customer, at the moment that customer needs help most.

Today a customer meets those agents alone. Tomorrow they can arrive with their own 🤫 Private Agent One, an advocate that knows their history, carries their consent, and is ready to transact. Sierra gets cleaner resolutions. The customer gets a fair deal. Private, sovereign AI on both sides of the line.

Read on

Four short pages, written for you.

Their work

Agent OS, outcome-based pricing, the τ-bench research family and the people behind it, from Sierra's own writing.

Together

How 🤫 Private Agent One meets Sierra's agents on the customer's side, row by row, and what each side gets.

For the team

Why a customer with an agent makes yours resolve faster, where we would design together, and why we would be your customer too.

How we start

A working handshake prototype, then one consented pilot, then open standards and a shared go-to-market.

Two agents. One fair handshake.

We would love to build the customer's side of Sierra's conversations with you. We will bring a working prototype to the first meeting.

Let's build it together.

Start the conversationExplore the partner program
Sources
  • Sierra, official site
  • Sierra, about
  • Outcome-based pricing (Sierra blog)
  • τ-bench research
  • τ-bench paper (arXiv 2406.12045)
  • Fortune, Sierra launch (Feb 2024)
  • TechCrunch, $10B round (Sep 2025)

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Private Agent One is free for every American citizen. We do not sell your data, your attention, or your contacts. Certified zero-telemetry by design. Company and product names describe technology interoperability and do not imply endorsement.

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