Partially Verified65% confidenceFactExact time
Cached input still counts toward TPM; caching is a billing discount, not a rate-limit discount.
3
Sources
65%
Confidence
Long-term
Relevance
10/15/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedPrompt caching usually has an expiration period, requires rewriting after content changes, and the cache discount applies only to the input side, while output tokens are still billed at the standard rate.69% similarUnverifiedCached input refers to pre-storing the same context on the server side so that subsequent requests can reuse the cache without repeated computation, and is billed at a lower price.68% similarUnverifiedCached input tokens typically enjoy a discount of 25%–50% off the original price, as there is no need to recompute embeddings and attention weights—only the precomputed KV vectors need to be loaded from cache.67% 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65% similarVerifiedSome service providers have introduced cache-hit pricing, charging at a lower discounted rate when repeated long system prompts hit the cache.64% similar
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