How KV Cache Makes LLMs Fast, and Why It Eats GPU Memory
Every LLM you've used, ChatGPT, Claude, Gemini, Llama, does the same thing under the hood. It predicts one token, appends it to the text, and runs again. It's your phone keyboard's next-word suggestion, in a loop, a few hundred times per answer. Done naively, that loop gets slower with every token,…
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- 2026-11-05 08:08 · DEV Community — Machine Learning
How KV Cache Makes LLMs Fast, and Why It Eats GPU Memory