The economics of running AI: pricing, unit costs, and whether the spend pays for itself.
2 articles · Updated
Your dashboard says 90% cache hits. Your bill says otherwise. The gap is almost always three specific patterns inside the system prompt that don't show up in any log, and you can fix them in an afternoon.
Opus 4.8 lists at $5/MTok in and $25 out (a third of the prior Opus generation) with cache hits at $0.50. Here's what that does to the real per-request math for production teams.
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