# GardenBench: A lightweight, daily evaluation of LLM capabilities > Source: > Published: 2026-10-20 08:17:44.069216+00:00 [arXiv](https://arxiv.org/abs/2610.23866) ### GardenBench: A lightweight, daily evaluation of LLM capabilities Which summary reads better? Pick one — models revealed after.Both summaries are AI-generated. Silent post-deployment model drift and API changes can now be detected in real time using a new 11-suite daily tracking benchmark that measures day-to-day fluctuations in LLM accuracy, run times, and API costs. For anyone shipping agents, this enables a continuous monitoring pipeline to catch silent provider updates and degradation before they break production workflows. This shifts the paradigm from stale, one-off evaluations to automated, low-cost daily sanity checks of your active endpoints. GardenBench detects daily performance shifts in LLMs across 11 task suites, revealing unnoticed accuracy drops or cost spikes post-deployment. This lets engineers proactively monitor model drift and provider changes without heavy benchmarking, avoiding reliability surprises in production.