LLM Drift: Why Your AI Detection Pipeline is Quietly Decaying (Kimi K2 Benchmark)

A short field report on what current AI detectors actually do when you point them at frontier reasoning model output, and what I changed in my own detection workflow. I integrate AI detection into a few small side projects—content moderation pre-filters, writing quality flags, etc. The more I relied on detection, the more concerned I became that I was trusting numbers based on stale benchmarks. This week, a benchmark study confirmed my worst fears. It tested two popular detectors against 47 essa