Co-Founder @SierraPlatform. Board @OpenAI.

Joined July 2007
541 Photos and videos
Kraken and Sierra are partnering to modernize the customer experience for utilities globally. Excited to partner with Amir Orad, Assaf Biderman and team to build the AI operating system for public utilities. Our first agent, serving over a million customers, went live in just four weeks sierra.ai/customers/kraken
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Bret Taylor retweeted
Government and healthcare are two parts of the economy where productivity has slipped, and AI can help turn that around. @btaylor on Sierra being certified FedRAMP High so federal agencies can build better experiences for the people using their services.
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I am proud to announce that Sierra has been certified FedRAMP High — the standard for cloud companies working with U.S. federal agencies. Hundreds of millions of people rely on the U.S. federal government for services — from navigating Social Security, Medicare, and Veterans Affairs to filing their tax return or renewing their passport. AI agents built on Sierra can help make them simpler and faster. sierra.ai/blog/certified-fed…
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Here's a great case study of Sierra's work with GoFundMe, who used Sierra to create a coach to help guide people through the process of creating a fundraiser. We estimate the agent will result in $125 million in additional help raised in the U.S. this year alone. sierra.ai/customers/gofundme
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AI is advancing quickly. Society’s ability to manage its risks must advance just as fast. Today we’re sharing our vision for AI Resilience, with more than $130M in initial grants underway across bio-resilience, cyber-resilience, AI model safety, and AI’s impact on young people: openaifoundation.org/news/re…
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Jun 1
OpenAI frontier models and Codex are now generally available on AWS, giving enterprises a new way to build on Amazon Bedrock with OpenAI through the security, compliance, and governance workflows they already use. This is also the beginning of a broader expansion of OpenAI capabilities on AWS, including future availability for cybersecurity capabilities like Daybreak. openai.com/index/openai-fron…
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I am excited to have a discussion with @djrosent and @gilbert from @AcquiredFM (my favorite podcast by a mile) in NYC on June 24. You can register to attend in person at the link below. We're discussing "The AI Paradox" - all the apparent contradictions of AI (If AI is displacing jobs, why are there more job postings for software engineers today than there were a few years ago? If AI is deflationary, when will see lower prices? If AI is destroying the software industry, why are some younger applied AI companies growing so quickly?). David and Ben are the smartest and most well researched interviewers on the planet, and I'm really looking forward to our discussion. sierra.ai/events/sierra-acqu…
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Something we're excited about: June 24 · NYC · @btaylor the hosts of @acquiredfm The AI Paradox — what's real, what's hype, where we’re headed. 5:30pm, New York. Space is limited. Reserve your spot here: sierra.ai/events/sierra-acqu…
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Sierra just hit $200M in ARR. It took seven quarters to get to $100M, and only two more quarters to add our next $100M. Proud of the team and very grateful to our customers and partners.
21 Nov 2025
Sierra just hit $100M in ARR, just seven quarters since we launched in February 2024. @claybavor and I are very grateful to our customers and proud of the Sierra team, who has redefined the meaning of intensity and craftsmanship. I have never had this much fun in my career. (Photo is Clay signing the contract that crossed the $100M mark) sierra.ai/blog/100m-arr
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AI will transform the economy and jobs, creating opportunities while also bringing new challenges. At OpenAI Foundation, we are launching a program to better understand shifts, support the transition, and build long-term economic security. Starting with $250M dedicated openaifoundation.org/news/ec…
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Grateful for all the soldiers that made the ultimate sacrifice to preserve our freedom. Happy Memorial Day 🇺🇸
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At Sierra, we’ve built a transcription platform that dynamically routes across providers, incorporates a customer’s context, supports 70 languages, and adapts to real-world variability, improving both agent effectiveness and customer satisfaction sierra.ai/blog/voice-ai-is-o…
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An OpenAI model has achieved a major breakthrough in mathematics, by disproving a central conjecture in discrete geometry that was first posed by Paul Erdős in 1946. This is the first time AI has autonomously solved a prominent open problem central to a field of mathematics.
May 20
Today, we share a breakthrough on the planar unit distance problem, a famous open question first posed by Paul Erdős in 1946. For nearly 80 years, mathematicians believed the best possible solutions looked roughly like square grids. An OpenAI model has now disproved that belief, discovering an entirely new family of constructions that performs better. This marks the first time AI has autonomously solved a prominent open problem central to a field of mathematics.
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Sierra for branded credit cards: Imprint built a single agent that transforms into Booking, Shell, Rakuten—whichever brand is on the card—and got their sponsoring banks to sign off on it. Not a decision tree, but an intelligent agent that reasons, selects tools, and passes audits. sierra.ai/customers/imprint
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R1 sits at the intersection of providers, payers, and patients, handling the revenue cycle — everything non-clinical — on behalf of health systems across the country. In partnership with Sierra, the R1 AI agent is already resolving 40% of incoming calls sierra.ai/customers/r1-rcm
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Grateful that Sierra is partnering with @dhivyasu and Fiserv to replace IVR systems and hold times with delightful agents for the thousands of banks and millions of people who depend on Fiserv for payments infrastructure
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