Fable 5, Anthropic's newest model for complex, long-running work, is now available in Ana.

In our early testing, Fable 5 holds focus across long, multi-step work. It stays coherent on deep investigations, scheduled agents that run for a while, and analysis that spans large, interconnected datasets.

Try it now by opening a new thread and selecting Fable 5 from the model picker.

Enabling Access

Fable 5 is available to all Ana users. To enable it for your organization, go to Settings > Models and toggle Enabled next to Fable 5.

Learn More

Full model configuration options are in our documentation.