Anthropic is having a month. The AI lab finished May by surpassing OpenAI in market share of business spending for the first time, Ramp just revealed . It raised $65 billion at a $965 billion valuation (also besting OpenAI) at the end of May, then waltzed into June by filing confidential paperwork for an IPO , reportedly on the strength of its first-ever profitable quarter . Then on Friday, the Trump administration renewed its war on the model maker by sending a letter demanding it ban non-