AIHacker Noonabout 7 hours ago
Four Lines of Code Cut Claude Agent Cost 57%
7 min read
A developer added a cache_control marker to a Claude-based BI agent's system prompt, cutting API cost from $0.1906 to $0.0824 per 15 queries, a 57% drop. Latency fell 14% from 82.8 to 70.9 seconds. The 1,804-token cached prefix hit on 31 of 32 calls.
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