09 Gen AI Interview Preparation: What is the Context Window in the LLM

The context window is one of the most practical and frequently tested concepts in GenAI interviews — yet most candidates only give a surface-level answer. In this video, we break down the context window in a structured interview Q&A format, covering not just what it is but how it impacts real-world system design decisions across summarization, dialogue systems, and RAG pipelines. We cover the exact definition and how to explain it clearly in an interview, the three task types where context window size matters most, the size versus cost trade-off that every production AI engineer must understa…