We help companies build better, more human customer experiences with AI.

Joined February 2024
Personal Agent Protocol (Poppy) is built on standards companies already use: OAuth, JWTs, OpenAPI and MCP. Start by exposing just your website, APIs, or agent, and add more later. Watch the video to learn more.
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Busy week at Money20/20. Conversations with @BNYglobal, @Chime, @Plaid, and @synchrony covering everything from Personal Agent Protocol to payments, long running Horizon agents, agents as product, and AI in regulated industries.
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Voice agents are getting better at thinking and speaking at the same time, and in multiple languages. We’ve been working with @googlecloud and @GoogleDeepMind to test Gemini 3.8 Live Extended Thinking against real-world enterprise scenarios. The model scored 35.1% on Sierra’s τ-Voice-banking benchmark, while delivering low latency and competitive pricing. Excited about what this unlocks for voice.
Explore the latest advances in native audio models and the challenges of building better real-time voice experiences with @GoogleDeepMind + @SierraPlatform. Learn about conversational latency, multilingual code-switching, agentic voice tasks, and more →goo.gle/4hKV9B5
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Honored to take the stage at @afrotech on November 5th. I’m excited to share “The New Sales Playbook” & discuss how we’re putting AI to work at @SierraPlatform, and why adaptability and earning customers’ trust matters. November 5 - 8:45–9:00 AM Grand Ballroom A
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We love seeing what people are building with Tau 🚀
Community has always been at the heart of Tau. To celebrate the exciting work happening across our ecosystem, we’re highlighting some contributions here taubench.com/community. If you have built something with Tau, please make a PR and we'll take a look. 🚀
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Lots of question about personal agents in London today: is this an opportunity to grow my business, or are these agents going to dis-intermediate me from my customers? How do I distinguish legitimate personal agents from bots and fraud? Fundamentally: How can I remain in control of my customer experience in this new world? No-one has all the answers but Personal Agent Protocol is the start.
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Full house in London.
300+ people at Sierra Summit in EMEA. We had wide-ranging conversations with Alan Stott, COO @ VM02, and Stuart Riley, Group CIO @ HSBC about the importance of bringing employees along on the AI journey.
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A cab-load of people at our first Sierra Summit in London.
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Introducing Sierra’s partner ecosystem: the technology platforms, marketplaces, and service partners bringing Sierra to more businesses around the world. Excited to work with companies that share our commitment to helping businesses deliver better outcomes for their customers. Read more: sierra.ai/blog/the-sierra-pa…
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Arriving in London for Sierra Summit tomorrow.
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Sierra retweeted
@SierraPlatform 🤝 my tube commute
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What happens when your flight is canceled - before and after AI. Everyone is first in line with Sierra.
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As @btaylor just announced we’re publishing the first draft of Personal Agent Protocol, known as Poppy — and announcing 35 new design partners. With Poppy, customers decide what access to give their personal agents, and companies set parameters for what those agents can do. It’s built on open standards businesses already use, and designed to work through websites, APIs, and company agents. This is a starting point — we welcome feedback from companies, developers, and personal agent builders to help shape this new protocol. Read more here: sierra.ai/blog/poppy or read the draft here: personalagentprotocol.org/.
On Tuesday, Sierra announced Personal Agent Protocol with Meta, Genesys, Instinct, Rocket, Shopify, Stripe, and Walmart. The response has been incredible and today we’re publishing the first draft of the protocol at personalagentprotocol.org and announcing 35 new design partners. As personal agents take on more, our goal is simple: consumers have choice and control, and companies know when they’re dealing with an agent and who it represents. This draft is a starting point. We’d love for companies, developers, and personal agent builders to read it, give feedback, and help us build an open standard together.
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