LLM Interview Series #2: What Exactly Is an LLM?

============================================================= Preparing for AI, ML, or LLM infrastructure interviews? Practice real interview-style questions here: https://interview.vizuara.ai/ ============================================================ “What exactly is an LLM?” sounds like a simple introductory question. But in Meta, Google, OpenAI-style AI and LLM interviews, this kind of question often reveals how deeply you actually understand the field. Most candidates give a surface-level answer and stop. In this video, we break the question down at multiple levels of depth: (1) Why do we need a model in the first place? (2) Why is it called a large language model? (3) Why does next-token prediction work so surprisingly well? (4) How do form, meaning, and structure emerge as a byproduct of the next token prediction task? (5) How should you lead the interview discussion instead of just answering and stopping? ============================================================ A strong interview answer is not just technically correct. It shows first-principles thinking, curiosity, and genuine passion. Code can be replicated by AI, but your depth of understanding and the passion with which you think through a question cannot. ============================================================