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… Claude Fable 5 and Claude Mythos 5 will cost developers $10 per million input tokens and $50 per million output tokens—twice as much as Anthropic’s publicly available AI models but cheaper than Mythos Preview. …
… The White House and Anthropic remain at odds after days of negotiations about bringing Claude Mythos and Fable 5 back online. …
… Mythos 5 was also privately released to this group last week, while Claude Fable 5, which is a Mythos-grade model, was released to the general public with specific blocks on its ability to give responses to questions about biology and cybersecurity. …
… However, the government stopped short of permitting a broader rollout of the model, and said nothing about the fate of Claude Fable 5, the consumer-facing version of Mythos that Anthropic released with significant additional safeguards. …
The administration continues to believe that there are ways to disable some of the guardrails on Anthropic’s Claude Fable 5, effectively allowing users to access the more powerful cybersecurity capabilities of the company’s Mythos model, the people said. …
… Our goal here is just to kick things off,” Graham said. “It's really important that Mythos Preview gets in the hands of defenders to give a head start.” The people considering the impacts of Mythos Preview extend far beyond tech firms. …
… Maybe the more advanced models will find a few things here or there, but I believe that, at least on the Firefox side having had a bit of a head start here, that we’ve rounded the curve.” Holley says that the Firefox team gained access to Mythos Preview as part of direct collaboration with Anthropi… …
… The executive order is the first major AI regulation directive of Trump's second term and reflects growing concern inside the administration that increasingly powerful systems, including Anthropic's Claude Mythos and OpenAI's GPT-5.5, could be exploited to carry out cyberattacks against critical in… …
… Anthropic formally announced its new Claude Mythos Preview model this week and said that for now it will only make the model available to a select group of a few dozen leading tech and financial organizations, including Apple, Microsoft, Google, and the Linux Foundation. …
… Discord Sleuths Gained Unauthorized Access to Anthropic’s Mythos AI Tool Anthropic’s Mythos Preview AI model has been touted as a dangerously capable tool for finding security vulnerabilities in software and networks, so powerful that its creator has carefully restricted its release. …