Anthropic is set to remove Fable 5 from its Claude subscription plan, effective tomorrow. Users are advised to take immediate action within the next 24 hours to manage their usage credits and adapt to the change. Key strategies include re-creating Fable intelligence using an extraction loop and integrating Fable with Sonnet 5. Additionally, users should familiarize themselves with the 10-80-10 strategy and enhance their advisor skills to mitigate the impact of this transition.