Musk's Colossus 1 AI supercomputer's inefficient mixed-architecture design couldn't be used to train Grok, so Anthropic's using it for inference instead — Musk readies unified Blackwell-only Colossus 2 for frontier training and potential IPO
…limits, and strict time-based usage ceilings on Claude Code sessions, particularly during periods of heavy demand. It was clear that Anthropic was running out of inference capacity. While training an AI…