So a few people started using grok bot and I'll probably regret that some day, but honestly the deployment model they have here for custom agents is kind of appealing to me, much more than BigLang.
I've found the grok-4.5+ variants to be quite suitable for powerhouse work, and I have a legacy plan with a Third Party model allowance, so I can throw the occasional harder planning tasks at e.g. Fable when needed.
I like that I can run any model from the major labs (or anything on Bedrock), instead of being fully tethered to a single vendor. I'll occasionally run the same task through several models/vendors to understand what's most cost effective to achieve a given outcome (and also to keep my grok calls -- which are very cheap through Cursor -- honest and within the limits of what it can do well).
I run most tasks through Cloud agents, with exceptions for Mac-native stuff (iOS builds, app store I/O etc).