Fable 5.2 or Opus? When to use each model in Claude Code

Claude Fable 5.2 is now available, and a new guide explains when to start on Opus 5.5, when to move up to Fable 5.2, or down to Sonnet 5.5 or Haiku 5.5 in Claude Code. It also covers splitting one job across models, with availability and usage limits varying by plan.