Is it normal that I have asked two networks (llama/mixtral) the same question ("tell me about most popular audio pitch detection algorithms") and they gave almo

Is it normal that I have asked two networks (llama/mixtral) the same question ("tell me about most popular audio pitch detection algorithms") and they gave almost the same answer? Both answers start with "Sure, here are some of the most popular pitch detection algorithms used in audio signal processing" and end with "Each of these algorithms has its own strengths and weaknesses, and the choice of algorithm depends on the specific application and the characteristics of the input signal.". And the content is 95% the same. How can it be?