The level of conspiracy theory is nuts
I would say the lack of skepticism is nuts, honestly.
Capabilities of this sort have already been demonstrated by independent parties, and models have consistently gotten better at this. Yes, insinuating that mathematicians and scientists are secretly solving decades-old problems on OpenAI's behalf is an insane conspiracy theory.
That's not what is being purported, you're doing a complete misdirect. OpenAI wants to IPO so Altman can potentially capture a trillion dollar bag, with so much money on the line + betting US foreign policy on it as well (pax silica) it's not hard to be overly suspicious of such claims. Especially in the context of a group of people wanting to generate a new decades long cold war in the form of China being the new big baddie (just ignore how destructive, both self- and towards the world, the US has become).
These companies desperately want a return to serfdom. If they didn't come off as so anti-human the public backlash wouldn't be so great.
Altman has no shares in OpenAI.