genAI to assist before, during and after lessons

GenAI facilitates the creation of lesson plans, relevant interventions during classes, and post-class assistance for, for example, evaluating activities. I would like to know at what point you have experienced benefits from using GenAI and if you have been able to compare the performance of ChatGPT and Gemini. Personally, I have noticed that Gemini, when given the same request, tends to deliver results that better meet my expectations.