Some questions deserve more than one answer. Press Explore multiple next to Send, and the Explore this prompt dialog lets you run the same prompt as up to five variants, each with its own model. The answers stream in side by side instead of across a pile of browser tabs.
When they finish, GPTree scores them against your prompt and writes a short reason for its pick. Keep the winner, choose Use this answer on the one you prefer, or merge the strongest parts into one. Each variant is its own model run, so a five-way Explore uses five runs of credits.