Comment by wolverine876

It could be somewhat embarassing for someone who trusts the app and then says the wrong thing to another human. As an off-the-cuff idea (not because you haven't already thought deeply but because I hate to find a problem without offering a solution), maybe use videos of real speakers for basic instruction, then the AI for responsive lessons, etc.?

As you no doubt have considered, but if you define you mission by the tool (AI) and not the outcome (accurate, faster language acquisition) you'll have a great tool and lesser outcomes. Whatever you prioritize, that's what you'll get! :)