"OpenAI claims that they would be profitable if they weren't spending on R&D "

Ermmm dude they are competing with Google. They have to keep reinvesting otherwise Google captures the users OAI currently has.

Free cash flows matter. Not accounting earnings. On a FCFF basis they largely in the red. Which means they have to keep raising money, at some point somebody will turn around and ask the difficult questions. This cannot go on forever.

And before someone mentions Amazon... Amazon raised enough money to sustain their reinvestment before they eventually got to the place where their EBIT(1-t) was greater than reinvestment.

This is not at all whats going on with OAI.