xAI’s Colossus 2 – First Gigawatt Datacenter In The World, Unique RL Methodology, Capital Raise

xAI is constructing a massive new AI training cluster called Colossus 2, the world's first planned gigawatt-scale datacenter. Demonstrating unprecedented speed, the project erected 200MW of cooling capacity in a mere six months, a feat that took competitors over a year to achieve. This rapid expansion is strategically designed to leapfrog rivals like Meta and Anthropic in total compute power for a single training cluster by the third quarter of 2025. Beyond the sheer scale of its hardware, xAI is also developing a unique reinforcement learning method that may give it a critical edge over OpenAI and Google.