US Startup Funding Roundup November 2026: From OpenAI’s $1.25T Valuation to a $600M Robotics Bet
US AI startup funding in November 2026 week 1 delivered one of the most concentrated bursts of capital the sector has ever seen, with OpenAI closing $11 billion at a $1.25 trillion valuation while Zipline pulled in $1.5 billion and
