There has been several updates on the numbers of Tesla Dojo systems that have been built. The main technical details are compared between the Tesla Dojo version 1 and the Nvidia H100 and chips from a startup Etched.
These are some of the main AI chips that are competing for the future multi-trillion AI training market.

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Dojo is likely to evolve to having fsd training algorithms run directly on chip. Otherwise Nvidia has the lead.