The LLM Context Window Arms Race: Does It Actually Matter?
Every week brings a new headline: “Model X reaches 1M token context!” “Model Y supports 2M tokens!” The LLM industry seems locked in an arms race where the stated goal is always “bigger context window,” as if this single metric determines whether a model is useful. It doesn’t. The context window arms race reveals a gap between what engineers think matters and what actually works in production systems. And if you’re building with LLMs, understanding that gap will save you from infrastructure that doesn’t solve your problems. ...