Company also changes data retention policy
It's here. Anthropic's Mythos model, supposedly too dangerous for public release in April, is now available to wreak havoc or tackle other tasks for a hefty price and with some new guardrails in place. Just make sure you don't mind having Anthropic keep some of your data for a while.The AI biz on Tuesday announced public availability of Claude Fable 5, a Mythos-class model, and private availability of Claude Mythos 5 for Glasswing partners. Both are distinct from Mythos Preview, the model family's elder sibling. Mythos-class models are said to be a tier above Claude Opus in terms of benchmark performance."Fable 5’s capabilities exceed those of any model we’ve ever made generally available," the company said. "It is state-of-the-art on nearly all tested benchmarks of AI capability, showing exceptional performance in software engineering, knowledge work, vision, scientific research, and many other areas."
As if to suggest that the current technocracy still has room for humanities scholars, Anthropic notes that the name Fable comes from the Latin fabula, "that which is told," similar to the Greek mythos.
"The safeguards are what distinguish the two models (Fable and Mythos) and are why we’ve given them different names," the company said.Anthropic considers Fable capable of causing serious damage without safeguards. So part of its protocol is to failover to Opus 4.8 for certain types of queries – prompts related to cybersecurity, biology and chemistry, or distillation. Fable 5 ships with a new set of classifiers, which are separate AI models that look for misuse.The AI biz is also instituting a new data retention policy – it's retaining log data to have a record in the event of misuse. This applies specifically to organizations with zero data retention policies – which now technically are not zero data retention.
