Engineers mix models to balance speed and reasoning, or to catch hallucinations...

https://medium.com/@gashomor/i-run-five-ai-models-in-one-chat-heres-what-multi-model-ai-actually-is-6a1bb329d292

Engineers mix models to balance speed and reasoning, or to catch hallucinations via disagreement. But be careful. Auto-synthesis can hide model dissent and leak data across providers. Focus on reliability over hype—don't over-engineer the stack.