Where every idiot with a Google account/Microsoft account/phone number can sign up for their service and start churning out tokens per second by the query, I'd say it's pretty open to the public. The far more closed alternative would be to keep it invite only, granted only towards a set of elites, at select companies. Only OpenAI knows how much $20/user is charging them, but for the price insensitive wealthy, after b…
$20/mo for the average user, but I expect to see LawyerOpenAI, PhysicianOpenAI, and FinanceGuyOpenAI where OpenAI has access to specific training data that makes it significantly more useful for the particular profession and perhaps it's skills and knowledge will be neutered otherwise.
Professionals/Companies will fork over hundreds or thousands of dollars per month, like they do to Bloomberg or NexusLexus in order to be most effective at their job