Routing between models helps you hedge against specific failure modes and...

https://noon-wiki.win/index.php/The_Multi-Model_Trap:_Why_More_Isn%E2%80%99t_Always_Better

Routing between models helps you hedge against specific failure modes and leverage unique strengths. Just watch out—synthesis can bury critical dissent or leak data across providers. Track your costs and logic. Don’t trust black boxes blindly.