Smells like an opportunity for a new product to serve all sides. Let the people send prompts, which are then inflated locally on receiver-side with custom prompt-modifications, before they are shrunken again. This way you get fancy small text for the transport, the sender doesn't have to waste money on AI, and the sender can personalize their response, or also save money by just reading the prompt directly. And finally, some company can make money from this. Win-win-win-win I would say.