There are five reasons I can think of to run an open model locally:
* This. I'm not sharing your prompts with anyone, so I don't have to worry about who reads them or how they might misinterpret them.
* Freedom of model choice. I often want help with writing plots that involve unethical and/or illegal activities, and any model that refuses to play along gets the boot.
* No rugpulls. If I want to run Gemma 4 31B forever, nobody is going to swap it out against my will.
* No usage limit, and no bill. As a practical matter, this is replaced by the speed of my hardware.
* No Internet required to run. My desktop computer rarely finds itself in this position, but it's still nice to know I'm not dependent on a connection.