xAI Colossus 2 Gigawatt Claim vs. Satellite Cooling Estimate

January 17, 2026

Elon Musk said Colossus 2 was running at one gigawatt with 1.5 gigawatts planned; satellite analysis estimated cooling capacity at roughly one-third of his claim.

xAI

Sources

Teslarati

News · Jan 18, 2026

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

Additional sources

Tom's Hardware

News

Elon Musk's xAI Colossus 2 is nowhere near 1 gigawatt capacity, satellite imagery suggests — despite claims, site only has 350 megawatts of cooling capacity

previous event

ClickHouse buys Langfuse

next event

Fabricated citations turn up in NeurIPS papers