As a result of a US government directive, we are suspending access to Claude Fable 5 for all users. You can continue to use all other Claude models.
Hereโs what this means for you:
Across Claude products, new sessions will run on your selected default model or Opus 4.8, and existing Fable 5 sessions will end with an error.
On the Claude Platform, requests to Fable 5 will also return an error. Please update your integrations to other Claude models.
We know this is a disruption to your workflows; we appreciate your patience and support.
Results from Internal Coding Evals For Claude Fable
- For 98% of tasks, it simply does the same thing as GPT 5.5 or Opus 4.8 and costs 2x
- For 2% of hard coding tasks, it does make sense if you are willing to pay double and get some quality gains
So ideally, you want to ROUTE VERY hard tasks to Fable
We made a small coding model. Its open source apache 2.0.
Now more than ever i think this tech needs to be built in public so that those using it are in control. Try it out if you want a small and efficient coding model.