Anthropic has launched the Fable 5 family of models, representing a new "Mythos-class" of artificial intelligence designed for high-level autonomous tasks. While the Mythos version is provided to the security community for vulnerability research without restrictions, Fable 5 includes safety guardrails for general use. These models are built on a massive 10 trillion parameter training run, enabling them to handle long-range complex explorations that exceed the capabilities of previous generations.
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