Musk's video is dated 26 August 2024 per Tom's Hardware[1]. The end date is Tesla's[4][5] Q4 2024 earnings call on 29 January 2025 (call date from the Nasdaq transcript listing), where Tesla confirmed Cortex 1's ~50k-H100 deployment was complete (Structure Research[8]).
On 26 August 2024 Elon Musk posted a video of the inside of Cortex, Tesla's new AI training supercluster being built at Giga Texas in Austin. It is meant to train Full Self-Driving and the Optimus robot, and Tesla has said it will hold 50,000 Nvidia H100 GPUs plus 20,000 of its own hardware.
Jiyue