Glossary
What is Semantic Caching?
A caching technique that returns stored responses for semantically similar queries, not just exact matches.
Unlike traditional caching (which requires exact string matches), semantic caching uses embeddings to identify queries that mean the same thing. For example, 'What is the capital of France?' and 'Tell me France's capital city' would return the same cached response. This can reduce LLM costs by 20-40% for applications with repetitive query patterns.
Examples
- → FAQ chatbots where users ask similar questions in different ways
- → Customer support where common issues have standard responses
- → Search interfaces where users paraphrase queries
Related Terms
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