Unverified50% confidenceFactExact time
Mainstream prefix caching implementations include Anthropic's Prompt Caching, OpenAI's automatic caching, and RadixAttention in inference frameworks such as vLLM.
1
Sources
50%
Confidence
Long-term
Relevance
10/18/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedAnthropic's Prompt Caching is implemented through explicit cache_control markers, while OpenAI offers automatic prefix caching.80% similarUnverifiedMainstream inference frameworks such as vLLM already natively support automatic prefix caching.78% similarUnverifiedvLLM implements Automatic Prefix Caching, and SGLang supports fine-grained cache reuse based on RadixAttention.77% similarUnverifiedBoth OpenAI's Prompt Caching and Anthropic's Prompt Caching adopt a KV cache reuse mechanism.72% similarUnverifiedTypical scenarios that benefit from prefix caching include multi-turn conversations sharing the same system prompt, repeated document contexts in RAG, and stable codebase prefixes in code completion.72% similar
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