[_pdp_]

You could easily distribute the same task to 5 subagents that are specifically programmed to do as best as they can based on their scope and merge the results into a single coherent response.

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.

[vidarh]

People who don't want the hassle. A lot of Openrouters selling point is removing hassle, and providing things like this can move them up the value chain for people who aren't very cost sensitive and are happy to pay to get better outcomes without having to do the work themselves.