Unverified50% confidenceFactExact time
Prompt caching allows vendors to cache the same repeated prefix in an Agent loop, with subsequent calls billed at the cache read price, in this example $0.20 versus $4 for input, 20 times cheaper.
1
Sources
50%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedA Prompt Caching cache hit read costs only 0.1 times the base input price, while the initial write cost is 2 times the regular input price.77% similarUnverifiedSome vendors have introduced context caching (Prompt Caching) features, charging lower fees for repeatedly occurring long prefixes.77% similarUnverifiedPrompt Caching在提示词前缀完全相同且超过约1024 token阈值时命中，缓存token通常按原价的25%甚至更低计费75% similarVerifiedOpenAI Prompt Caching can reduce the cost of repeated prefixes to 10%–25% of the original price.75% similarUnverifiedOpenAI launched the Prompt Caching feature in 2024; when the prompt prefix is completely identical and exceeds the 1,024-token threshold, the KV Cache is reused, and the cached portion is typically billed at 25% of the original price or even lower.72% similar
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