
Bret Taylor
@btaylor
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Co-Founder @SierraPlatform. Board @OpenAI.
San Francisco, CA
Joined July 2007
If you are graduating soon in a technical degree and would like to build a career on the frontier of AI agents, apply to the APX program at Sierra, modeled after the program Clay and I joined at Google that kick started our careers twenty years ago
sierra.ai
Are you a college senior or recent graduate? If you’re driven to turn AI theory into practice, make an impact, and learn from some of the best in our industry, we’d love to build with you.
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Hey! I wanted to make sure you saw we're doing a Live Webinar for the Ultra Skool Learn how to use Ultrasound Vagus Nerve Stimulation - people are having absolutely WILD experiences on this https://t.co/JUX28wAud3
ultraskool.com
Discover the ancient wisdom of Ultra Breath and unlock the healing power of your Microtubules through revolutionary techniques combining ultrasound-enhanced stimulation with ancient Tummo breathing...
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I don’t know whether Stanford will pull out a win, but loving watching @MicahFord17. Throwback to the Toby Gerhart years 🌲
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With Sierra, CDW is building a smarter support experience tailored to the complex needs of IT procurement teams. AI agents are fantastic for complex B2B use cases!
sierra.ai
With Sierra, CDW is building a smarter support experience tailored to the complex needs of IT procurement teams
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This is pretty exciting and inspiring news for the future of AGI
Claim: gpt-5-pro can prove new interesting mathematics. Proof: I took a convex optimization paper with a clean open problem in it and asked gpt-5-pro to work on it. It proved a better bound than what is in the paper, and I checked the proof it's correct. Details below.
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Voice simulations even simulate background noise - capturing messy real-world environments so you can harden agent performance before launch. Simulations are why agents built on Sierra perform better in the real world - on the side of the highway, in a noisy room, etc
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Brex's agent built on the Sierra platform answers customer questions 90% faster, saving Brex customers 15,000 hours per year
sierra.ai
AI agents in action
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Simulations are a new kind of testing for a new kind of software, simulating conversations between AI agents and mock personas ensure reliability at scale
sierra.ai
Sierra’s platform, Agent OS, enables you to create simulated conversations between agents and mock personas ensure reliability at scale. They are a new kind of testing, for a new kind of software.
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@btaylor @SierraPlatform f’yeah! the biggest cx unlock for us, and a few new sierra agents are coming up soon! thank you for being such an awesome partner, bret 💖
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Ramp's engineering team uses @SierraPlatform's Agent SDK to automate 90% of customer service cases (!). It has been such a pleasure to work with and empower one of the best engineering teams in Silicon Valley
sierra.ai
With Sierra, Ramp built an AI agent that streamlines support and delivers faster, more reliable outcomes.
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Bret Taylor (@btaylor) might have the most insane resume in tech: ✔︎ Co-creator @GoogleMaps ✔︎ Invented the "Like" button ✔︎ CTO at @Facebook ✔︎ Co-CEO at @Salesforce ✔︎ Chairman of the board at @Twitter ✔︎ Chairman of the board at @OpenAI—where he played a key role
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No pressure. No waiting. Just answers. @Topgolf's online Player support is now powered by Sierra. Everyone’s game.
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You SHOULD have a thesis about the world when you’re building a company. Otherwise you’re trapped in an echo chamber of technical milestones that don’t mean anything. That’s the kind of mindset @btaylor has. And needs, when he's leading @OpenAI, @facebook, & @salesforce.
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Bret Taylor (@btaylor) talked about why AI is still in its Yahoo! directory phase, how to go enterprise-first as a startup if your name isn't "Bret Taylor," and what agentic *actually* means (it's not a bag of floating-point numbers) in the latest Frameworks for Growth.
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“We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness.” The ideas in the Declaration of Independence reshaped the world for
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Getting consistent performance and reliability from high scale large language models is extremely challenging. I love this post from Kimberly Patron about how Sierra uses health and performance-based traffic routing and request hedging to get meaningfully better performance and
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6-26-2025 ($) An Interview with Sierra Founder and CEO Bret Taylor About AI Agents and Tech History Lessons https://t.co/9xe2gY8bbB
stratechery.com
An interview with Sierra founder and CEO Bret Taylor about his career in tech and the future of AI.
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