The article presents OpenJev, a live experiment that allows users to compare the performance of a local decision model in their browser, using either direct readout or generation of option probabilities. The model can be run on different sizes and devices, with options to switch between models like MiniCPM5 2B and Qwen3 0.6B. The experiment aims to measure the difference in performance between the two approaches. The article also mentions that the model's weights come from Hugging Face and remain in the browser cache, with no inputs leaving the page.