The three things that separate an AI demo from an AI product aren't models. They're: being able to change a prompt without a deploy, knowing what each request cost you, and not leaking a user's credit card into logs. None of these are exciting. All three are in the ChimerAI stack, so here's what they do and — more usefully — the tradeoffs they hide. 1. Prompt templates in the database Instead of prompt strings scattered across .py files, there's a PromptTemplate model with ...