Claude Fable 5 ships with built-in safety filters that redirect certain queries to an older model. Claude Mythos 5, a second, less restricted version, goes only to govt-vetted partners.

Anthropic has released a full version of its cybersecurity-centric Claude Mythos model—along with a safer version for the general public.

Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like…

Claude Fable 5 brings Mythos-class AI coding power to general users, but with cybersecurity guardrails, fallback models, and pricing that could make developers think twice.

It says new safeguards make it possible to release a Mythos-class model it previously said was too risky to make public.

Anthropic is releasing Claude Mythos 5 to trusted organizations and Claude Fable 5 to the public, a version it says can’t be used for cyberattacks.

Anthropic launches Claude Fable 5, a Mythos-class AI model engineered with new safeguards that specifically restrict its use in cybersecurity.

Anthropic, maker of the Claude artificial intelligence (AI) models, on Tuesday made the most powerful version of its technology available to the general public while restricting…

Back in April, Anthropic unveiled its Claude Mythos AI model that it said was too powerful to publicly release. Instead,...

Anthropic launched Claude Fable 5 with safeguards for high risk tasks while limiting Mythos 5 to trusted cyber partners.

Anthropic said it could not yet release the full Claude Mythos 5 model, so instead it created Fable 5 with baked in safeguards.

Anthropic's 5th-generation AI model makes Mythos-level capabilities available to all customers and shows exceptional performance in coding, knowledge work, and vision— now…

Anthropic launches Claude Fable 5, its most powerful AI model yet, balancing advanced capabilities with strict safety safeguards and restricted high-risk uses.

Anthropic launched Claude Fable 5, its most capable consumer-facing AI model to date, but with a few guardrails.

Positioned a tier above the previous Opus models, Claude Fable 5 sets a new benchmark for generally available AI, outperforming rivals like OpenAI's GPT-5.5.

This version comes with guardrails that block some of its most powerful capabilities

AI company restricted access to Fable 5, its most powerful Mythos model, for months over cybersecurity concerns

One step further into the power politics of frontier AI systems.

Anthropic launches Claude Mythos 5 for restricted cybersecurity use and Claude Fable 5 for the public, splitting its most powerful AI model into two tiers.

Anthropic sets AI performance records with new Mythos 5, Fable 5 frontier models - SiliconANGLE

Anthropic says its new Fable 5 AI model can handle long-running tasks and agents. The tradeoff: higher costs, tighter safeguards and usage limits.