🚨BREAKING: Tesla created a new file format called .SMOL to speed up FSD training by 4x Tesla engineers realized the GPUs were not the bottleneck. The storage system was. Old formats like MP4 and CSV forced the system to scan, decode and search through massive files just to find a few frames of data. That wasted time. Expensive GPUs were sitting idle waiting for data to load. So Tesla built a custom format from scratch. The idea is simple but powerful: Put a master index at the very front of the file that tells the system exactly where every piece of data lives. No scanning. No decoding. No searching. The system jumps straight to the exact byte it needs and feeds the GPU instantly. Result: • 400% fewer I/O operations • ~11% smaller files at petabyte scale • GPUs stay fully busy instead of waiting • FSD models train much faster without new hardware Tesla also stores data in ready to use tensor form, so the CPU does not waste time converting formats before the GPU can use it. Even more interesting. The patent says this format is not just for cars....