Simon Willison: Under-Reported Details of xAI/Anthropic Data Center Deal — Environmental Record, Colossus 1 vs 2, Model Deprecations
Simon Willison·medium signal
Simon Willison highlighted three under-reported aspects of the Anthropic-SpaceX deal: (1) Anthropic gets Colossus 1 while xAI keeps the larger Colossus 2 for its own training; (2) Colossus 1 has a terrible environmental record, with gas turbines running without Clean Air Act permits by classifying them as 'temporary'; (3) xAI sent deprecation notices for Grok 4.1 Fast and other models with just two weeks' notice the night before Anthropic's announcement.