SpaceX has almost finished writing V1.0 of an in-house AI training stack in C that exact-maps to 220k GB300s with 800G NICs, making heavy use of pipeline parallelism and getting as close to bare metal as possible.
The potential speed improvement vs JAX for large training runs is over an order of magnitude.
Just press Cmd + Shift + Ctrl + 3, then Cmd + V paste the screenshot directly into Grok Build and ask it to inspire, guide, explain, debug, or recreate what you want
It’s much easier to explain ideas visually instead of trying to type out every tiny detail manually
The workflow feels incredibly natural and easy once you start using images directly inside the development process
Grok is multimodal and already has surprisingly strong vision capabilities for understanding screenshots, UI, layouts, and visual context