startupfortune.com
2026-07-25
xAI announced the 2-trillion-parameter Grok 4.6 model on July 18, 2026, followed by an even larger Grok 4.7 model just weeks later, setting a new pace in AI model releases that no other lab has matched. This aggressive cadence is supported by xAI’s Colossus supercluster in Memphis, which has grown t