Anthropic, OpenAI launch enterprise JVs; SpaceX-Anthropic inks 300MW compute deal

Anthropic unveiled a $1.5B joint venture with Blackstone, Hellman & Friedman, and Goldman Sachs on May 4—each contributing $300M. Hours later, OpenAI announced The Development Company, raising $4B from 19 LPs including TPG and Brookfield at a $10B post-money valuation. Anthropic released Claude Opus 4.7, its flagship financial-services model, plus Microsoft 365 add-ins on May 5. SpaceX and Anthropic inked a Memphis Colossus 1 computing deal May 6, delivering 220,000+ Nvidia GPUs and 300MW of new capacity for Claude training and inference. Cursor crossed $2B ARR by February, capturing SaaS's fastest-ever $1B milestone.