All the other models performed much worse for the skills I'm using. I tried gpt-5.1 (and then 5.4 again recently), and also tried pointing it at OpenRouter and using a few of the cheaper models, and all of them added too much friction for me.

Be judgemental all you want, but I feel like I'm paying for less friction, and also more security since my experiments also showed claude to be the least vulnerable to prompt injection attempts.