Remember that OpenAI was created specifically to stave off the threat of AI monopolization by Google (or anyone else - but at the time Google).
DeepMind have done some interesting stuff with Go, Protein folding etc, but nothing really commercial, nor addressing their reason d'etre of AGI.
Google's just-released ChatGPT competitor, Bard, seems surprisingly weak, and meantime OpenAI are just widening their lead. Seems like a case of the small nimble startup running circles around the big corporate behemoth.