Co-founder & CEO of Discovery Loop. Former Chief Scientist, Google. Helped build many Google products, TPUs, Gemini, TensorFlow, MapReduce, Bigtable, ...

In April, '17, @jsomers of @NewYorker reached out & said he wanted to do a small profile of me & my longtime colleague Sanjay Ghemawat, watch us work for a few hours, maybe dinner, etc. It came out today. I think it captures our working style really well. newyorker.com/magazine/2018/…
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This was recorded a few months ago when I was still at Google and it was a really fun conversation!
How does this only have 21,000 views in 8 days? Chat with @JeffDean (then Google) and Bill Jia about large scale AI models. piped.video/BVQSWeK2Nrw?si=MvMX…
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Did you know you can learn interesting things from computations in real rat neurons? I love what @AlexKsendzovsky and team are doing at @BioComputingCo are doing.
What happens when neurons meet silicon? A new world emerges. Partnering with Amazon to bring it to customers. DM me for early access.
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Jeff Dean retweeted
Luiz André Barroso’s work influenced me a lot in how I think about systems, and even about my career. I decided to write about his work with @JeffDean on some topics that interest me a lot: tail latency and the systems behind the modern internet. andreybleme.com/2026-09-22/l…
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Thanks for the great discussion, @dawnsongtweets!
I had the great honor and pleasure of sitting down with @JeffDean for his first public talk since leaving Google, where he spent an extraordinary 27 years. Few people have shaped modern computing and AI as profoundly - from MapReduce and Bigtable to TensorFlow, Mixture-of-Experts, TPUs, and Gemini. Our conversation covered some of the biggest questions shaping the future of AI: • How do you recognize a foundational idea before everyone else does? • How do you choose a research problem worth spending 5 years on? • What can coding teach us about building better reasoning models? • What might recursive self-improvement (RSI) actually look like? • What happens when the scientific discovery loop itself becomes increasingly automated? (and how is Jeff’s new startup going to contribute in this space?) • As AI becomes increasingly autonomous, how do we keep it safe and secure? • What should the next generation of researchers be working on? Here are some key insights and highlights for anyone building the future of AI. 🧵1/8
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Jeff Dean retweeted
Today, G5 Labs is emerging from stealth with $14 million in seed funding to build a new abstraction layer for AI-native software development. @pillar_vc and @BatteryVentures co-led the round, with participation from @omegavp , Encoded Ventures, and prominent angel investors including @JeffDean . G5 Labs is pioneering the post-developer era. A spinout from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL), the G5 Labs platform makes natural-language intent, organized as an ontology, the source code itself—putting software development in the hands of the whole organization while providing the governance needed to keep requirements, implementation, and organizational policies aligned. We’re excited to build a future where employees across departments, from product owners to analysts and compliance leads, can create and evolve software using the language they already speak. Read our full announcement: g5labs.ai/press Read more in VentureBeat: lnkd.in/gh4H5_zF
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Exciting results, @LiamFedus! Congrats to the whole team at Periodic Labs!
We built high-throughput materials labs in Menlo Park to create a loop between experiments and models. The labs generate fresh data, the models learn from it, and then help us decide what to try next. Using only 1,300 H200s, plus months of our experimental data, we mid-trained and RL’d an open-source model to surpass GPT-6 Astra on our analysis benchmark. We call it Neon. This is real footage from our lab. We’re focusing first on hard problems in materials science, including superconductors, magnets, and semiconductor materials. Read our blog posts below.
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Jeff Dean retweeted
Introducing OM-1, our first robot foundation model, zero-shot generalizing to any robot: table-top arms, industrial arms and humanoids. - learned directly from human manipulation data - no teleop/robot data - close to human-level dexterity and efficiency - multi-robot collab
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Excited to partner with @DiscoLoopAI ! They are actively hiring across engineering & research - please reach out if the mission sounds interesting to you.
Introducing Discovery Loop ♾. We’re building AI to run experiments at unprecedented scale and to solve the biggest bottlenecks in science and engineering. Our founders @JeffDean, @Sanjay_Ghemawat, @quocleix, @OriolVinyalsML helped build the AI infrastructure and models that scaled the modern world. Now, we are scaling discovery itself. The future can't wait. Learn more at: discoveryloop.com
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Jeff Dean retweeted
1/ ✨ World record today on bounded gaps between primes, one of number theory’s oldest open conjectures.  We show that infinitely many pairs of prime numbers are separated by 212 or less.
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Jeff Dean retweeted
Stanford HAI's fall conference returns this October. Confronting Our AI Future: Hope, Fear, and the Choices Ahead will feature a full day of conversations on work, learning, governance, and how we ensure AI expands human potential. Speakers include @drfeifei, @JeffDean, @audreyt, @erikbryn, Alondra Nelson, and @istoica05, with more to be announced. Register by October 1 for early bird pricing: hai.stanford.edu/events/conf…
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Jeff Dean retweeted
Today, we're excited to share early progress on using Gemini to accelerate scientific discovery in the real-world. We present an extension of Co-Scientist which we use to collaborate with scientists across materials science, biology, and computer science.
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Jeff Dean retweeted
Behind a lot of great AI projects, there is a good @JeffDean story. Here is mine 😉 Back in 2019, even before Khipu AI officially existed, Jeff said yes to participate in our first event in Uruguay 🇺🇾. His early belief in our LATAM AI vision created a ripple effect—if @JeffDean was in, everyone was in. Incredibly grateful he returned for Khipu 2025 in Chile 🇨🇱! As we look ahead: Khipu 2027 is heading to BRAZIL 🇧🇷 Applications are OPEN: khipu.ai/ Want to sponsor us and support Latin American AI? DM me or reach out at sponsorship@khipu.ai Check out the video below to see what Khipu is all about (and spot a quick Jeff cameo 😉). 👇 piped.video/Db19zoquTOs?si=Xkyn… #Khipu2027 #Khipu_AI #MachineLearning #LatAm
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Jeff Dean retweeted
Indeed, it has been quite a week, so I thought I'd share it with the KDD 2026 audience! For my Google colleagues who might have sent me internal chat messages after I closed my laptop for a final time on Thursday afternoon, I apologize for my lack of response! (Zoomed in)
Legendary! Thanks for sharing the behind-the-scenes @JeffDean!
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Indeed, it has been quite a week, so I thought I'd share it with the KDD 2026 audience! For my Google colleagues who might have sent me internal chat messages after I closed my laptop for a final time on Thursday afternoon, I apologize for my lack of response! (Zoomed in)
Legendary! Thanks for sharing the behind-the-scenes @JeffDean!
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This slide was a build of a bunch of pieces, with some more pictures and context in the intermediate parts
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And the final couple
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Jeff Dean retweeted
That day was super fun, @gabepereyra! Thanks for inviting me! What you didn't happen to mention was that it wasn't just a normal USC club soccer team practice session, but actually was tryouts day. So there were like 80 skilled undergrads there, all eager to make the team. So it was divided up into a bunch of small-sided 7v7 games. I like to think 45-year-old me kind of held my own, but I'm sure everyone was thinking "Who's the old guy playing in our 7v7 match?" 😅
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Jeff Dean retweeted
Incredibly excited & proud to announce @radicalvcfund co-lead investment partnership with @JeffDean, @OriolVinyalsML, @quocleix and @sanjay_ghemawat in their launch of @DiscoLoopAI. Perhaps the most pedigreed AI founding team ever. Thrilled to help them fulfill their mission.
Announcing Discovery Loop! I am very excited to announce that, along with my longtime friends and collaborators @Sanjay_Ghemawat, @OriolVinyalsML and @quocleix, we are founding Discovery Loop (@DiscoLoopAI), a Public Benefit Corporation whose mission is to automate machine learning, science, and engineering to accelerate discoveries and progress. The four of us have worked together for 14 to 30 years, and have helped build some of the world’s most used products, infrastructure and AI models, and we’re excited to turn our attention to this ambitious endeavor. ♾ Learn more at: discoveryloop.com
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Jeff Dean retweeted
@JeffDean has built the foundations that every era of modern computing has stood on, from web-scale infrastructure to scaling deep learning itself. Exceptional people inspire great talent and the founding team around him is among the strongest I have ever seen in over 25 years of investing. @lightspeedvp is honored to join them from the start of this journey.
Announcing Discovery Loop! I am very excited to announce that, along with my longtime friends and collaborators @Sanjay_Ghemawat, @OriolVinyalsML and @quocleix, we are founding Discovery Loop (@DiscoLoopAI), a Public Benefit Corporation whose mission is to automate machine learning, science, and engineering to accelerate discoveries and progress. The four of us have worked together for 14 to 30 years, and have helped build some of the world’s most used products, infrastructure and AI models, and we’re excited to turn our attention to this ambitious endeavor. ♾ Learn more at: discoveryloop.com
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