31 articles tagged with Cost Optimization.
A single NAT Gateway quietly billed us $2,900 in one month, mostly for data processing on traffic that never needed to leave the VPC. Here's how we found it and cut it.
Our S3 bill tripled in a month with no growth in stored data. The storage line was flat. The cost was in requests and a misconfigured lifecycle rule quietly shredding money.
Users kept asking the same questions in slightly different words, and we paid full price every time. Semantic caching cut our LLM bill by a third.
A long, stable system prompt re-billed on every request is money on fire. How prompt caching works, where the cache boundary belongs, and the structuring discipline that got us a big cost and latency cut without changing behavior.
Three discounting mechanisms, three different commitments. The rules of thumb we use to pick, and the mistakes we made before settling on them.
Token caching, model routing, prompt compression, and the boring discipline of measuring. The levers that cut our LLM bill 60% without touching feature scope.
Bad resource requests waste money or trigger OOMs. The methodology we use to right-size requests based on actual usage, and the gotchas the autoscalers don't fix.
