Grok-3, developed by Elon Musk’s xAI, was unveiled on Monday, with the company making bold claims about its capabilities while showcasing a massive computing infrastructure that signals even bigger ambitions.
The announcement focused heavily on raw computational muscle, benchmark performance, and upcoming features, though many of the actual demonstrations felt like replays of what other AI companies have already achieved.
The star of the initial part of the show wasn’t the AI itself, but rather “Colossus,” a behemoth cluster of 200,000 GPUs that powers Grok-3’s training.
The system came together in two phases: 122 days of synchronous training on 100,000 GPUs, followed by 92 days of scaling up to the full 200,000. According to the xAI developers, building this infrastructure proved more challenging than developing the AI model itself.
The company already has plans for an even more powerful cluster, with Musk saying they are aiming for five times the current capacity, effectively building what would be the most powerful GPU cluster on earth.
