That doesn't imply reasoning and more likely expresses that it's focused on better tool calling capabilities.

I think the promise back when all the separate reasoning / multimodal models were out was that GPT-5 would be the model to bring it all together (which mostly comes down to audio/video I think since o3/o4 do images really well).

Of course it is. GPT-5 is one of the most anticipated things in AI right now. To live up to the hype, it needs to be a reasoning model.