A visitor at Anthropic’s Code W/ Claude event in San Francisco, May 7, 2026. The A.I. company’s pricing would make it one of the biggest ever public listings. It comes at a volatile moment amid fears that the A.I. boom may not be sustainable. (Jason Henry/The New York Times) By ERIN GRIFFITH, MIKE ISAAC and LAUREN HIRSCH Anthropic earlier this week set a price range for its initial public offering, valuing the company at more than $1 trillion, in a sign that investor demand for the…