🚀HardInference OptimizationPREMIUM

Prefix Caching and Prompt Caching

Understand how shared prompt prefixes reuse KV work in vLLM, SGLang, and hosted APIs, and how to structure prompts for cache hits.

What you'll master

KV reuse across requests

Static-prefix prompt structure

Provider prompt caching behavior

Cache hit instrumentation

Privacy and invalidation trade-offs

Hard20 min readIncludes code examples, architecture diagrams, and expert-level follow-up questions.

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