If OpenAI is the foremost in solving the AGI - possibly the biggest invention of mankind - it's a little weird that everyone's dropping out. Does it not look like that no one wants to work with Sam in the long run?
Artificial General Intelligence requires a bit more than parsing and predicting text I reckon.
There's almost certainly better options out there given it looks like we don't need so many examples to learn from, though I'm not at all clear if we need those better ways or if we can get by without due to the abundance of training data.