An interactive 3D simulation and visualization of a black hole, leveraging Three.js for rendering and custom GLSL shaders to achieve stunning details in the event horizon, starfield, and accretion disk. Coded using newly released Grok 4 from xAI

Engineering is the closest thing to magic we have in this world

“I'm motivated by curiosity about the nature of the universe. You know, where are the aliens? Are there aliens? Where do universes come from? How do they end? Are we in a multiverse? Or what are even the right questions to ask?” Elon Musk

A view of the ISS from SpaceX Dragon. Amazing that videos like this can exist so casually on social media.

“Tesla’s are the best bro”

Vision & voice of @Grok work like magic! Download Grok now & try it for free: apps.apple.com/us/app/grok/id…

My Cybertruck is even more bad ass at night. Inspired by Starship.

I pasted the Three.js code from the previous 3D scene in Grok 4 from xAI and prompted it to create a variation with new shapes. The scene leverages custom GLSL shaders for particle behavior and click morphs between shapes. Open source code and workflow in the thread below. 🧵👇

Starship falling into Indian Ocean and Starlink provides the coverage 🤯

Hm, what changed about society in 2012? 👀

Cybertruck has a tent mode which levels the bed. It also has a hidden Picnic mode which turns the frunk and windshield into a flat table!

Grok 4 gets a little better every few days

We are creating a multi-agent AI software company @xAI, where @Grok spawns hundreds of specialized coding and image/video generation/understanding agents all working together and then emulates humans interacting with the software in virtual machines until the result is excellent.

Ultimately, it’s just going to be: Input Bitstream -> Feedback -> Output Bitstream Tesla already does the first two steps in the car and has also been able to generate real-world video for a few years. Just need to widen the aperture for a far broader variety of bit IO

Grok 4 Heavy is better than any model available at identifying issues in your codebase. Here's the JS prompt I use with my game code to have Grok 4 Heavy find the bugs. Python prompt in Comments👇

After talking to the @xAI team late one night about this, I thought damn we’re probably in a sim right now 🫤

Just left the Tesla design studio. Most epic demo ever by end of year. Ever.

Just at ~1% of Type I Long way to go

Elon Musk with Nvidia CEO Jensen Huang in 2016.