Greg Yang (@TheGregYang) / X

Greg Yang

2,468 posts

Greg Yang

@TheGregYang

xai cofounder. fighting lyme

Joined February 2019

Pinned
Greg Yang
@TheGregYang
Jan 20
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
1.2M
Greg Yang
@TheGregYang
Jan 19, 2025
by gawd, what have i created...
813K
Greg Yang
@TheGregYang
Oct 7, 2024
caught someone cheating in my interview today, for the first time (that I know of) I wasn't even mad. Just very curious how do people cheat in interviews these days So we had a nice chat at the end where they taught me all the tricks. The most surprising thing: a rando Chinese
2.5M
Greg Yang
@TheGregYang
Nov 28, 2024
grok haters, it's your time to shine: what are the worst parts of the grok experience? you name it we fix it
37M
Greg Yang
@TheGregYang
Jan 7, 2025
working on improving grok's personality now tell me all the situations where grok is woke or lame the more replies this post gets, the more based grok will be!
12M
Greg Yang
@TheGregYang
Jul 12, 2023
Finally launched x.ai! The mathematics of deep learning is profound, beautiful, and unreasonably effective. Developing the "theory of everything" for large neural networks will be central to taking AI to the next level. Conversely, this AI will enable everyone
xAI — Creators of Grok, the AI Chatbot
From x.ai
2.6M
Greg Yang
@TheGregYang
Dec 24, 2024
Nate Silver
@NateSilver538
Dec 23, 2024
NYC has a considerably lower crime rate than most large American cities. It's also a city of 8+ million where lots of crazy shit happens on a daily basis. I don't blame anyone for being concerned but it's sort of a test for whether you think in terms of narratives or base rates.
1.8M
Greg Yang
@TheGregYang
Dec 8, 2024
honestly it's unfair how fun it is at @xai just a bunch of guys and gals hanging out building cool shit, laughing their asses off of stupid jokes hardly feels like working
Nikita Bier
@nikitabier
Dec 8, 2024
Replying to @justindross
I have literally never seen a team work this hard in my entire life. 9-2am everyday, weekends and holidays included
2M
Greg Yang
@TheGregYang
Jul 2, 2025
that's not our office we have way more tents
djcows
@djcows
Jul 1, 2025
visiting the xAI office really humbled me
580K
Greg Yang
@TheGregYang
Sep 27, 2024
Gut health is so critical to brain health that I wouldn't be surprised if America is losing half of its productivity just due to junk food
309K
Greg Yang
@TheGregYang
Jun 27, 2025
what kinda problems you'd like grok 4 to solve for you? reply below!
Elon Musk
@elonmusk
Jun 27, 2025
Grinding on @Grok all night with the @xAI team. Good progress. Will be called Grok 4. Release just after July 4th. Needs one more big run for a specialized coding model.
2.7M
Greg Yang
@TheGregYang
Jul 10, 2025
so proud of the @xai team! grok4ever
1M
Greg Yang
@TheGregYang
Jul 14, 2023
Since folks are asking: The books I mentioned on @xai spaces are "Linear Algebra Done Right" by Axler and "Naive Set Theory" by Halmos. Other math books that I really enjoyed over the years: "Introduction to Algorithms" by Thomas H. Cormen & Charles E. Leiserson & Ronald L.
1.3M
Greg Yang
@TheGregYang
Nov 27, 2024
to all the college kids out there: the classes don't matter the people do so do things that maximize the number of interesting smart people you meet and be in the trenches with you'll thank me later
371K