Claude shipped Fable 5.1. The feed will treat that as the model you should use now.
I looked at my own usage. The list-price meter was about $56k in 30 days. Memberships made it about $800. That is the gap the labs are selling: sticker vs seat.
I still use cheap or free models for rewrites and first drafts. OpenCode plus DeepSeek covers a lot of that. I save the expensive slow model for a long agent run, the same way I would not hire a specialist for a sore throat.
If the job is simple, use the simple tool.
@mehdizare Does this mean you actually have a $55k bill for your private work with Fable?