Machine Learning Algorithms & Natural Language Processing

May 29, 2026 · Industry Insights

SpaceX Switches Large‑Model Training Stack from JAX to C, Claiming Ten‑fold Speedup

SpaceX has replaced JAX with a C‑based training stack that Elon Musk says speeds up large‑model training by an order of magnitude, while simultaneously building the 1‑GW Colossus II supercomputer, listing AI infrastructure as a core business, and offering short‑term compute rentals such as a 180‑day lease to Anthropic.