Analysis of 922 Agentic Task Traces Finds DeepSeek v4’s Cost Edge in Caching

I analyzed 922 agentic task trace and found the secret weapon of DeepSeek v4

A Reddit user analyzed 922 agentic task traces and reported $0.01 per task for DeepSeek v4 Flash versus $1.52 for Opus 4.7. Both used about 960K tokens per task, but DeepSeek showed a 97% cache hit rate versus 87%, with a 0.02 cache read/write price ratio versus 0.08. The key issue is caching, not headline pricing.

Why it matters: HKR-H/K/R all pass: 922 agent traces tie a large cost gap to cache hit rate and cache read/write pricing. Reddit single-source data and incomplete method detail keep it in the 78–84 band.