xAI joins Google and Microsoft in CAISI pre-deployment safety testing; pivots toward neocloud

Under a new Commerce Department deal, Google, Microsoft, and xAI will give CAISI early access to frontier models for national-security pre-deployment evaluations. xAI also moved Grok training to Colossus 2, freeing the original Memphis site, and is reportedly leasing capacity to Anthropic — fueling talk of an xAI/SpaceX neocloud pivot ahead of a possible IPO.