Pi achieves 99.93% cache hit rate with DeepSeek, cutting $132 bill to $2.65
solyarisoftware · x · 2026-08-26
A developer case shows Pi Agent achieved a 99.93% cache hit rate processing nearly 1B input tokens via DeepSeek V4 Flash, costing only $2.65 (vs. $132 without caching).
Compared to the typical 94-97% hit rate in other harnesses, Pi's advantages include:
- Short system prompts.
- Fewer default tools.
- Context visibility/editing before requests.
This design keeps cache prefixes stable, drastically reducing API costs.
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