He has said that they already know everything they need to know to get to AGI.
OpenAI has not made a single thing that wasn't just a wrapped LLM.
So either A: he has somehow been running a skunk works that has fundamentally changed everything we know limits LLMs and none of the researchers leaked anything or B: he thinks LLMs are the way.
Additional quote when he was asked about AGI:
“How did we get to the doorstep of the next leap in prosperity? In three words: deep learning worked. In 15 words: deep learning worked, got predictably better with scale, and we dedicated increasing resources to it,” Altman said.
This tracks with the whole "I need 1 trillion dollars of energy investments" plan to get to AGI that he's asked for.
The guy's either honestly convinced himself that we can get there with deep learning scaling or he's a conman. Could be both.
Call links are a lot more work than "a few buttons"