Using multiple LLMs is tempting for solving edge cases, but it adds serious...

https://delta-wiki.win/index.php/The_Reality_of_Multi-Model_AI:_Why_One_Model_Isn%27t_Enough

Using multiple LLMs is tempting for solving edge cases, but it adds serious operational debt. While mixing models lets you leverage specific strengths or cross-check output for better accuracy, it is not a silver bullet