Anthropic’s $1.2T secondary valuation jumps 550% in a year, overtaking OpenAI Anthropic's secondary market valuation surged 550% in a year to $1.2 trillion, surpassing OpenAI. The AI startup faces high demand from buyers but limited sellers, reflecting investor enthusiasm for its technology. Anthropic has a problem most startups would envy: too many buyers and almost no sellers. According to a…