Anthropic has publicly filed for a stock market listing in what is slated to be one of the largest debuts in history. The company’s float on the US market will serve as a test of the financial viability of the multitrillion-dollar AI boom.

Analysts and investors have valued the San Francisco-based company, founded in 2021, at more than $1.5tn. The company, which will will list under the symbol ANT, confidentially filed with US financial regulators for an initial public offering in June.

“We believe AI is one of the most consequential technologies in human history,” the company’s investor prospectus reads.…