Anthropic opened its Fable AI model to Claude subscribers, promising capabilities it says match its unreleased Mythos system.
The company made the model available today, letting existing Claude users test Fable at no cost until June 22. No usage credits will be deducted during the trial, and the feature rolls out within the current Claude interface.
If the model lives up to Anthropic’s claims, developers and enterprises get an early look at next‑gen performance without waiting for a formal release. It also lets Anthropic collect real‑world feedback while sidestepping the usual pay‑per‑use barrier.
The move mirrors earlier limited‑beta rolls by other AI firms, but the free‑credit angle may attract users who are otherwise hesitant to burn through their allocation.