Adding the GPT-4.1 model for mods.

I really hope you can quickly add the GPT-4.1 model into your program as the default choice for handling custom mods.

I've been using very complex prompts, and the current GPT-4o model doesn't handle them nearly as well as the GPT-4.1 model. I've been working with the GPT-4o model for the past month until you added the ability to choose the GPT-4.1 model in the browser extension. The difference in processing prompts with custom mods is just incredible.