actionable ai

Free guide

Run Fable 5 all day without blowing your limits

The 4 settings that let one developer run Claude's most expensive model for 5.5 hours straight on about $150, with a copy-paste ranking file so you can set it up in 20 minutes.

  • The effort rule that cuts your usage burn in half with one command
  • The delegation instruction that makes cheap models do the grunt work while Fable thinks
  • An editable copy-paste ranking file so Claude picks the right model for every job automatically
  • The routing rules that keep huge documents, logs, and testing off your Fable 5 limit

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4 settings + a copy-paste ranking file to run Fable 5 all day without blowing your usage limits.

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A look inside

What's inside

01

Why Your Limits Keep Vanishing

Fable 5 is the smartest model most people have ever used, and the loudest complaint about it is the same everywhere: the usage limit disappears in a day.

02

Who Figured This Out

Theo of t3.gg, in his public walkthrough "A proper guide to Fable 5." He deliberately did not share his config files so people would build their own.

03

Hack 1: High Effort, Never Max

The reasoning effort selector is the single biggest lever on your bill.

The rest of the guide

  1. Hack 2: Hand Implementation to Cheaper ModelsFable can call other AI models from the command line the same way it runs any other tool.
  2. Hack 3: The Model Ranking FileInstead of deciding which model to use every time, have Claude write the decision down once, mapped to YOUR actual work.
  3. Bonus: Outsource the Token-Hungry JobsSome jobs eat tokens no matter how smart the model is: browser and computer use, reading giant documents, digging through logs, long research sweeps.
  4. The One-Prompt InstallWant the whole stack in one shot?
  5. The 5-Day PlayWith the hacks on, the free window changes shape: Fable stops being a chat you ration and becomes a manager you can leave running.
  6. When To Skip ThisIf you only use Claude for short questions and quick rewrites, setting 1 is all you need.
  7. ResourcesA proper guide to Fable 5 (Theo, t3.gg): the full 43-minute walkthrough these settings come from Claude Fable 5 is included in paid plans until July 12 Want this running on your machine this week?

About the author

Cooper Simson

Founder of Actionable AI. 30,000+ operators read the newsletter.

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