That is more or less the same thing.

I am not sure who is the intended user of this fusion api as with all things prompt + model matter.

One scenario I can see it working is writing markdown specs before the coding starts and analysing it for gaps. That’s so few tokens that throwing as much LLM against it as possible is worthwhile regardless of cost per million tks

A unified UI would be great, although not obvious how useful the "fusion" value prop is.