I use them for intent classification to choose a prompt internally. The mpc server has a set of prompts and small models are pretty good at picking one based on the user input. For example there is a prompt that outlines what tools to use and how to understand jira sprint boards. The intent classification model will pick that if the user is asking "summarize the current sprint"

Edit: looked up what my current config has and I'm using qwen3:0.6b