From Prompt to Prediction: Understanding Prefill, Decode, and the KV Cache in LLMs

📰 Machine Learning Mastery

Understanding prefill, decode, and KV cache in LLMs for efficient inference

intermediate Published 30 Mar 2026
Action Steps
  1. Understand how attention works during the prefill phase
  2. Learn about the decode phase of LLM inference
  3. Optimize decode efficiency using the KV cache
Who Needs to Know This

NLP engineers and AI researchers can benefit from this article to improve their understanding of LLM inference, leading to better model performance and efficiency

Key Insight

💡 The KV cache can significantly improve decode efficiency in LLMs

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🤖 Boost LLM inference efficiency with prefill, decode, and KV cache!
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