Axios Pro Exclusive ContentExclusive: Spectro Cloud hits $1B valuation amid rising AI model switchingIllustration: Annelise Capossela/AxiosSpectro Cloud, an AI infrastucture company helping manage token costs, raised $100 million at an over $1 billion valuation, the company tells Axios exclusively. Growth Equity at Goldman Sachs Alternatives led.Why it matters: Ballooning AI costs have made companies that drive down AI costs a major bet for investors in 2026....