I mostly use local models when the data has personal information. Earlier this year, I felt the coding quality was still not as good as Claude Code.

One thing that works for me is to ask the local model to make some fake data with the same format, let Claude Code work on the fake data, and then bring the code back and run it locally on the real data.

This way the real data never leaves my machine, but I can still use a stronger model for most of the coding.