devindkim's profile picture. a real human bean. building intelligence, prev @xAI

Devin Kim

@devindkim

a real human bean. building intelligence, prev @xAI

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When the only strategy to understand the universe is truth-seeking, you build a truth-seeking machine


September was my last month at xAI! I joined as one of the first members of the post-training team in 2024 and eventually led research tooling, where we built some of the world’s best systems to accelerate Grok’s development. On my first day, I was at the whiteboard with @ibab


Try uploading your PDFs to Grok, including books! We’ve significantly improved performance on summarizing or answering questions about long documents.

We've upgraded Grok 4's PDF processing abilities: 1. Grok can now seamlessly handle massive PDFs - hundreds of pages and beyond! 2. Grok has a better understanding of the PDF content through sharper recognition capabilities. Grok's PDF upgrades are now live for all our users on…



grok 4 is a big chungus


maybe the real human data was the friends we made along the way

Meta taking a 49% stake in Scale AI for $14.8B, investors and employees get paid. Meta prob wanted to acquire them but didn’t want to go through regulatory approval so found this roundabout scheme. Alexandr will run Meta’s superintelligence lab, and Scale will find a new ceo

pitdesi's tweet image. Meta taking a 49% stake in Scale AI for $14.8B, investors and employees get paid. 

Meta prob wanted to acquire them but didn’t want to go through regulatory approval so found this roundabout scheme. 

Alexandr will run Meta’s superintelligence lab, and Scale will find a new ceo


training a model on X is called post training *not to be confused with post-training, which comes after pre-training


once again we learn the hard lesson that hard things are supposed to be hard


the team cooked with this one

Meet the Grok 3 family, now on our API! Grok 3 Mini outperforms reasoning models at 5x lower cost, redefining cost-efficient intelligence. Grok 3, the world's strongest non-reasoning model, excels in tasks that need real world knowledge like law, finance, and healthcare.

xai's tweet image. Meet the Grok 3 family, now on our API!

Grok 3 Mini outperforms reasoning models at 5x lower cost, redefining cost-efficient intelligence.

Grok 3, the world's strongest non-reasoning model, excels in tasks that need real world knowledge like law, finance, and healthcare.


the most powerful AI agent tool call is "human"


bye bye oura

devindkim's tweet image. bye bye oura

working backwards yields the best decision trees


insanely fun year ahead, prepare for max acceleration :)

@xAI has acquired @X in an all-stock transaction. The combination values xAI at $80 billion and X at $33 billion ($45B less $12B debt). Since its founding two years ago, xAI has rapidly become one of the leading AI labs in the world, building models and data centers at…



how it feels to release GPUs back into the pool for your cracked coworker's training run


taking requests for magic crystal ball to predict the future below (with %) 🔮


Devin Kim 已轉發

This is it: The world’s smartest AI, Grok 3, now available for free (until our servers melt). Try Grok 3 now: x.com/i/grok X Premium+ and SuperGrok users will have increased access to Grok 3, in addition to early access to advanced features like Voice Mode


Devin Kim 已轉發

Thanks team for the hard work!

yiwenyuan98's tweet image. Thanks team for the hard work!

going live now!



Devin Kim 已轉發

Woah! That was one of the most unexpectedly rewarding hours of my life. Instead of passively listening to an audiobook about physics while doing errands as usual I had an hour long back-and-forth conversation with Ara from Grok 3 about a bunch of scientific topics. We started…


good morning to all those who celebrate


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