Musk targets over one million Nvidia chips for xAI Colossus 2

By Splitfeed EditorialLast updated Sep 26, 2026, 19:17 UTC

On September 25, 2026, Elon Musk announced that xAI's Colossus 2 data center is targeting a substantial expansion of its Nvidia GPU count by the end of the year. The original plan called for 660,000 GB300 GPUs, but the new target ranges from 990,000 to more than 1.2 million GB200 and GB300 units depending on the source, with one account citing a figure as high as 1.44 million total chips. The announcement sent Nvidia's stock higher on the day. Colossus 2 is the successor to xAI's first Colossus supercomputer cluster, and the revised figures would represent more than a doubling of the facility's previously stated capacity within a matter of months.

The scale of the buildout matters because it signals how aggressively xAI is trying to close the infrastructure gap with better-resourced competitors. At the upper end of the reported figures, Colossus 2 would hold more than a million high-end AI accelerators at a single facility, a count that would place it among the largest known GPU clusters in the world. The precise final number remains genuinely uncertain, with published figures spanning a range of roughly 250,000 chips, and no single confirmed target has been established. One framing circulating in coverage positions the expansion as a direct challenge to OpenAI's compute infrastructure, though whether xAI's chip count would actually surpass competitors at those figures is not settled.

The Pro-AI camp is treating the announcement as a sign of momentum. The account AlexTech.ai cited a total of 1.44 million GPUs by December and framed the goal as reaching GPT-6 levels of capability in record time, reflecting the camp's general enthusiasm for rapid scaling as a path to more powerful AI. Critics have used the news to highlight what they see as a mismatch in priorities. The account arcticfriend.bsky.social drew a contrast between large-scale AI infrastructure investment and projected Medicaid cuts affecting millions of Americans, a line of argument that treats the concentration of capital in AI buildouts as a political and social concern rather than a technical one. The Middle Ground camp, represented by Pidgeon, noted that communities are already pushing back on data center expansion over local resource demands, pointing to a layer of on-the-ground resistance that sits apart from both the optimism and the broader political critique.

The argument would sharpen considerably if xAI confirms a precise final chip count or announces a completion date for the expanded cluster. Any procurement filings, power agreements, or facility announcements tied to Colossus 2's buildout would give a clearer picture of whether the upper-end figures are realistic targets or aspirational ones.