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DeepSeek V4-Flash KV Cache: Cut Input Costs 50x — ContentBuffer guide

DeepSeek V4-Flash KV Cache: Cut Input Costs 50x

K
Kodetra Technologies··9 min read Intermediate

Summary

Structure prompts so DeepSeek's disk cache hits, and pay ~50x less on repeated input tokens.

DeepSeek V4-Flash KV Cache: Cut Input Costs 50x

DeepSeek quietly flipped the switch on DeepSeek-V4-Flash-0731 at the end of July, and the developer chatter has been about one thing: how absurdly cheap it is to run repetitive workloads on it. The headline number is real, but most people are leaving it on the table because they don't know how the cache decides what counts as a hit. This guide fixes that.

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#deepseek #deepseek-v4-flash #context-caching #llm-cost-optimization #prompt-engineering

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