Anthropic releases Claude Fable 5 and Mythos 5, two Mythos-class models sharing one model, differing only by safeguards.

Anthropic said the new version, called Claude Fable 5, will have safeguards to prevent misuse in fields like cybersecurity.

Anthropic launched Claude Fable 5 on Tuesday, a Mythos-class model with safeguards blocking cybersecurity and biology queries, priced at $10 per million input tokens.

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

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.

Anthropic first announced Mythos in April, which it called a "step change" in capabilities, but opted to tightly control its rollout.

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…

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 is pricing both Fable 5 and Mythos 5 at $10 per million input tokens and $50 per million output tokens. The company says that is less than half the price of Claude…

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.

As AI models get more powerful, there’s also going to be a level of danger. Anthropic announced Mythos not long...

Anthropic launched Claude Fable 5 today, June 9, 2026. It is the most capable model Anthropic has...

Anthropic ships two new models, Claude Fable 5 and Mythos 5, that claim to blow past the current Opus generation, especially in coding and research. Fable 5 finished a code…

Anthropic apre al pubblico il primo modello Mythos-class. Le richieste su cybersecurity, biologia e distillazione vengono dirottate su Opus 4.8 in meno del 5% delle sessioni.…

Anthropic apre al pubblico il primo modello Mythos-class. Le richieste su cybersecurity, biologia e distillazione vengono dirottate su Opus 4.8 in meno del 5% delle sessioni.…

Anthropic's most powerful model is now publicly available.

Today we’re launching Claude Fable 5: a Mythos-class model that we’ve made safe for general use.

Until today, Anthropic's Mythos-class models were restricted to a small group of cyberdefenders and...