A blank prompt can make every model look roughly the same. Give them a difficult idea, a specific voice, and a few rounds of pressure, and their personalities become obvious. One pushes toward structure. Another finds unusual language. A third notices the premise you forgot to question.
That variation is not noise to eliminate. It is creative leverage.
Stop looking for the single winner
Benchmarks are useful when the job is fixed. Creative work is rarely fixed. The task changes as the idea develops: exploration becomes selection, selection becomes craft, and craft becomes critique.
A model that is brilliant at opening possibilities may be the wrong one to tighten a final argument. Treating every stage as the same contest leaves useful capability on the table.
Difference is not a bug in the multi-model workflow. Difference is the workflow.
Choose a mind for the moment
Start by naming the move you need. Do you want breadth, precision, friction, taste, or speed? Then choose the model that gives the idea that kind of pressure.
The point is not to collect more answers. It is to create a better sequence of questions—without losing the context that made the idea interesting in the first place.