AI BriefingSpaceX Nears Completion of Its Own AI Training Stack V1.0 Built in C
Key point
SpaceX has nearly completed development of its own C-based AI training stack V1.0, targeting a performance improvement of more than 10x over JAX.
Details
SpaceX has nearly finished developing its own AI training stack V1.0 using C. This stack is designed to be optimized for a 220k GB300 environment equipped with 800G NICs.
It actively utilizes pipeline parallelism and is characterized by adopting an approach as close as possible to bare metal in order to maximize hardware performance.
For large-scale training jobs, it is expected to achieve speed improvements of an order of magnitude (10x) or more compared to the existing JAX.
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