piaoyang

it has been 10 years since the legendary alphago match. it may sound like hindsight but one should be able to foresee what we have today back then knowing the power of deep learning. and remember we didn't even have transformer then. onwards for the next 10 years

@simon_zhai Good luck man

Today is my last day at xAI, feeling very fortunate about the opportunity. It has been an amazing journey 🫡🫡🫡

@himanshustwts @pizzacritic999 Crunchbase is simply wrong in this case.

@pizzacritic999 original cofounders are 8 people as crunchbase mentions. tho others are in founding team lets say.

this isn't looking good

SpaceX has acquired xAI, forming one of the most ambitious, vertically integrated innovation engines on (and off) Earth → #xai-joins-spacex" target="_blank" rel="nofollow noopener">spacex.com/updates#xai-jo…

@TheGregYang Get well soon Greg! hope to see you back with full energy soon

I've been suffering from Lyme disease. I'm stepping back from xAI into an informal advisory role so I can go founder mode on my health, starting today. --- The symptoms started when I got sick (cold, flu, or COVID -- I'm not sure which) in early 2025. I distinctly felt less energetic, less creative, and less agentic even weeks after "recovery." After that, my condition ebbed and flowed, but the lows kept getting lower. Accidentally eating the wrong thing would make me extremely tired, taking days to recover. Working out would leave my whole body feeble for days. There was a week where I slept 12 hours a day and still couldn't recover. Lyme is famously hard to diagnose, but luckily I have an incredible doctor. He suspected these symptoms, far from being just in my head, indicated immune issues. Detective work over a few rounds of testing revealed I have Lyme disease. I was very surprised because Lyme is said to come from tick bites (where the bump looks like a target), but I don't ever remember having one. Likely I contracted Lyme a long time ago, but until I pushed myself hard building xAI and weakened my immune system, the symptoms weren't noticeable. --- Overall, I actually feel lucky to have discovered this early. Lyme is a serious disease that only gets harder to treat with age -- patients discovering it in their 50s or 60s have a much tougher time. Lyme can also be debilitating, leaving its victims bedridden, but luckily I'm still functional and can take care of myself day to day. So while some folks have said "you shouldn't have pushed yourself so hard," I'm glad I did. I found this issue early, and now I can fix it so I can push myself even harder when I rebound. --- Chronic Lyme is not well understood in the literature or by the public. For folks suffering from it, it can be a lonely fight. But I hope my story can make it just a little less lonely.

github.com/DGoettlich/his… great that someone made this happen!

Introducing Grok 4.1, a frontier model that sets a new standard for conversational intelligence, emotional understanding, and real-world helpfulness. Grok 4.1 is available for free on grok.com, grok.x.com and our mobile apps. x.ai/news/grok-4-1

@MartTmrLand @Yuchenj_UW maybe not a wise comment to give. They can just tell you "skill issue" and I bet they believe it

@Yuchenj_UW "We have confidence in our research stack." Right — the same research stack that published a result claiming Muon is nearly two times faster than Adam, a conclusion few could reproduce and which has since been refuted by multiple papers. Sure. No hype at all.

Whenever people ask me, “Is Muon optimizer just hype?” I need to show them this. Muon isn’t just verified and used in Kimi; other frontier labs like OpenAI are using it and its variants. It’s also in PyTorch stable now!

@therealmjin It was a pleasure working with you Matteo. Wishing you all the best!!

After ~1.5 years, my time at xAI has come to an end. Thank you to the staff at xAI for the opportunity and experience. It’s been one hell of a ride 🚀

@burkov wild claim. many people literally are talking about their new model. maybe you are not paying attention.

Unfortunately, DeepSeek has become the Chinese Mistral. Just like Mistral, they had a once-in-a-lifetime opportunity to become THE open-weight model company, but they just stopped. That's really sad.

@xDreamCoding general purpose model vs coding focused model. both are versatile though

@pycui64 Can you explain why there are distinct models for grok 4 code fast and grok 4 fast?

fast and furious

x.ai/news/grok-4-fa… Best search model in the world! Super proud of the team's achievement

@ChrSzegedy @morph_labs @mathematics_inc Congrats! nice puzzle on the career page btw

Excited to share that I am starting a new company dedicated to the creation of verified superintelligence via autoformalization. Building on the amazing RL infrastructure that we have developed at @morph_labs, @mathematics_inc has already achieved a breakthrough result by completing the formalization of the strong prime number theorem with its new autoformalization agent, Gauss.

@beaversteever you should share their name. i'm sure they won't mind

didn't even mention the 1 year probation period

@ryazan_dev not yet, stay tuned

@pycui64 *tool

try Grok Code Fast 1 -- "it's a good model"™

@boneGPT @adcock_brett did you actually watch the video?

Anything else Noam?

@ibab It's sad to hear this. Thank you Igor for all the things you have done for the team and for having me at xAI. It's been a pleasure and inspiration to work with you, and I wish you all the best for your next endeavor!

Today was my last day at xAI, the company that I helped start with Elon Musk in 2023. I still remember the day I first met Elon, we talked for hours about AI and what the future might hold. We both felt that a new AI company with a different kind of mission was needed. Building AI that advances humanity has been my lifelong dream. My parents left the Russian Federation after the collapse of the USSR in search of a better life for their kids. Life wasn’t always easy as immigrants. Despite the hardships, my parents believed that human values were priceless: values like courage, compassion, curiosity for understanding the world. As a child, I admired scientists like Richard Feynman and Max Planck, who relentlessly pushed the frontiers of physics in order to understand the universe. As a particle physics PhD student at CERN I was excited to contribute to that mission. But the search for new physics was getting harder and harder, requiring bigger and bigger colliders, while new discoveries kept getting fewer. So I began to wonder if superintelligence, not larger colliders, could be the key to unlocking the mysteries of the universe. Could AI develop a consistent theory of quantum gravity? Could AI prove the Riemann hypothesis? In early 2023 I became convinced that we were getting close to a recipe for superintelligence. I saw the writing on the wall: very soon AI could reason beyond the level of humans. How could we ensure that this technology is used for good? Elon had warned of the dangers of powerful AI for years. Elon and I realized that we had a shared vision of AI used to benefit humanity, thus we recruited more like minded engineers and set off to build xAI. The early days of xAI were not easy. Naysayers told us that we arrived too late to the game, so starting a top AI company from scratch would be impossible. But we believed we could do the impossible. Starting a company from zero required lots of hands-on work. In the beginning I built many of the foundational tools used at the company to launch and manage training jobs. I later oversaw much of the engineering at the company, including Infrastructure, Product and Applied AI projects. xAI’s people are deeply dedicated. Through blood sweat and tears, our team’s blistering velocity built the Memphis supercluster, and shipped frontier models faster than any company in history. I learned 2 priceless lessons from Elon: #1 be fearless in rolling up your sleeves to personally dig into technical problems, #2 have a maniacal sense of urgency. xAI executes at ludicrous speed. Industry veterans told us that building the Memphis supercluster in 120 days would be impossible. But we believed we could do the impossible. Our goal was to get our training setup running at scale on the Memphis cluster ASAP. Towards the end of our 120 day deadline, we were riddled with mysterious issues with communicating over RDMA between the machines. Elon decided to fly to the datacenter, and we followed. Our infra team landed in Memphis in the middle of the night and got straight to work. After pouring through tens of thousands of lines of lspci output we finally identified a wrong BIOS setting, the root of the problem. Elon was there with us until late into the night. When the training run finally worked, Elon posted our triumph at “4:20am” causing us to laugh out loud. I will never forget the rush of adrenaline that night, and the emotional bonds that we were all in this together. We went to bed feeling like we were living through the most exhilarating time of our lives. I have enormous love for the whole family at xAI. Our team is truly special - you’re the most dedicated people I’ve ever worked with. Catching up to the frontier this quickly hasn’t been easy. It was made possible by everyone’s diehard grit and team spirit. Thank you to every single person who joined me on this adventure. I want to honor your contributions, your time, your sacrifices, which are never easy. I will always remember working together far into the nights and burning the midnight oil. I will never forget the sacrifices and contributions you’ve made. As I drive away today, I feel like a proud parent, driving away after sending their kid away to college. My heart is brimming with tears of joy, rooting for the company as it grows and matures. As I'm heading towards my next chapter, I’m inspired by how my parents immigrated to seek a better world for their children. Recently I had dinner with Max Tegmark, founder of the Future of Life Institute. He showed me a photo of his young sons, and asked me “how can we build AI safely to ensure that our children can flourish?” I was deeply moved by his question. Earlier in my career, I was a technical lead for DeepMind's Alphastar StarCraft agent, and I got to see how powerful reinforcement learning is when scaled up. As frontier models become more agentic over longer horizons and a wider range of tasks, they will take on more and more powerful capabilities, which will make it critical to study and advance AI safety. I want to continue on my mission to bring about AI that’s safe and beneficial to humanity. I’m announcing the launch of Babuschkin Ventures, which supports AI safety research and backs startups in AI and agentic systems that advance humanity and unlock the mysteries of our universe. Please reach out at ventures@babuschk.in if you want to chat. The singularity is near, but humanity’s future is bright!

@ViaFloo it'd be cool to trigger the glitch in the matrix

@pycui64 It will break the simulation, be careful man

has anyone in gdm tried starting genie with a photo of a computer running genie and see if you can control the computer to play genie inside genie?