Investors are hoping for a $2 trillion listing in October backed by one of the fastest revenue ramps anyone has ever seen on a company that has yet to report an annual profit. That might bode well for OpenAI.

Half a dozen of the company’s backers said rapidly rising revenue would enable it to more than double its current valuation in a planned October float.

Investors expect Anthropic to be valued at $2trn or more in its upcoming IPO, doubling its initial aim of $1trn and dwarfing SpaceX.

Anthropic is heading towards a potential record-breaking IPO, with investors reportedly expecting a valuation of more than $2 trillion as the AI startups revenue continues to…