When I dont want to display an answer, rather than use the raw input card use a wait for user input, the store it as a variable you can then pass to your ai task store it to another variable and then in the next node text card that last variable. I am fairly sure the raw input asks and then generates the answer where as the user input simply collects the input and does not do anything with it, errrr that is how the card reads to me and has seemed to operate for me