Claude Fable relaunch disappoints users with nerfed performance

Anthropic's Claude Fable 5 Launch Sparks Backlash Over Token Costs, Censorship, and Data Policies

Anthropic released Claude Fable 5, its most powerful public AI model, but the launch has been met with significant backlash from the AI comm

Early access review: Claude 5 Fable (Mythos-class AI) shows major performance leap

The article describes the author's early access experience with Mythos-class AI model Claude 5 Fable. While much discussion has focused on i

Early access review: Claude 5 Fable (Mythos-class AI) shows major performance leap

The article describes the author's early access experience with Mythos-class AI model Claude 5 Fable. While much discussion has focused on i

Early access review: Claude 5 Fable (Mythos-class AI) shows major performance leap

The article describes the author's early access experience with Mythos-class AI model Claude 5 Fable. While much discussion has focused on i

We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5. We'll begin restoring access tomorrow, and will share an update soon. We’re grateful to our users for their patience, and to everyone who wo

Anthropic (@AnthropicAI)

Claude Fable 5 benchmarks show middling results with 19% security pass rate but four unprecedented solves

An analysis of Anthropic's Claude Fable 5 (Mythos-class model) benchmarked on 200 real-world vulnerability-fixing tasks. Despite high launch