Elon Musk’s xAI brings 1GW Colossus 2 AI training cluster online

Teslarati
By Simon AlvarezJan 18, 2026, 11:33 pm97 ptsTrending
xAI has brought its Colossus 2 supercomputer online, making it the first gigawatt-scale AI training cluster in the world, and it’s about to get even bigger in a few months. Elon Musk shared his update in a recent post on social media platform X. Colossus 2 goes live The Colossus 2 supercomputer, together with…

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