Musk’s xAI unveils world’s most powerful AI training system
Developed in collaboration with Nvidia, Colossus significantly surpasses existing models such as OpenAI’s, which uses 80,000 GPUs.

Elon Musk’s xAI has launched Colossus, now the world’s most powerful AI training system, setting a new benchmark in the rapidly advancing field of AI. Colossus, which boasts a 100k H100 training cluster, is set to double in size in the coming months, solidifying its position as a leading force in AI development. This achievement places xAI ahead of competitors, with Colossus surpassing the capabilities of even the most advanced models to date, including those from OpenAI.
The development of Colossus was accomplished in collaboration with Nvidia, a leader in semiconductor technology. The system’s power is driven by many GPUs, making it the most potent AI training system currently available. Industry reactions have been overwhelmingly positive, with many experts praising the accomplishment as a significant milestone in AI technology. Nvidia, which provided the cutting-edge H200 semiconductors for Colossus, highlighted the model’s exceptional gains in energy efficiency.
Musk’s ambitions in AI extend beyond Colossus. He has plans for a supercomputer that could be operational by 2025 and has expressed support for regulatory measures to ensure the safe development of AI. Despite the controversies surrounding these regulations, Musk remains a vocal advocate for responsible AI innovation, aiming to balance progress with public safety.