LLM wrapper is a tech-industry insult for a product that does little more than send queries to an existing AI model like GPT-4. Not concerning, just industry vocabulary about startup quality. If your kid uses it constantly, ask them where they first heard it, not to police their speech but to understand which online community they are in. Most slang of this kind moves through TikTok and group chats, so seeing it in your child's vocabulary just means they are plugged into normal teen internet culture.