Understanding the Real AI Stack Beyond LLM APIs

Calling an LLM API is not an architecture. Here’s what actually is. There’s a conversation I keep seeing play out on engineering teams right now, and it goes something like this. A tech lead gets pulled into a. The AI feature looks incredible - it answers questions fluently, sounds confident, handles edge cases like a champ. Everyone’s impressed. Someone says “let’s ship it.” And they do. Three weeks later, the tickets start rolling in. Users complain the bot feels “dumb”. It keeps forgetting what they said two messages ago. It confidently gives wrong answers.