I can't use Fable at work because all prompts are saved for "safety". I can't use Fable at home as the API pricing is much too expensive while codex is heavily subsidized with generous limits.
Fable is pretty fantastic for standard code monkey stuff. But yeah, anything related to security or science that's six degrees related to death, drugs, and/or fun gets flagged.
have fable do the planning and explicitly tell it to farm out actual tasks to opus 4.8 and sonnet 5 depending on complexity. it works pretty well but yes the API switchover guessing game is no fun