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Anthropic’s restricted Claude Mythos model may be coming to Claude Code By Mayank Parmar May 25, 2026 01:07 PM Anthropic appears to be preparing for the public rollout of "Mythos," which was announced in April as a restricted model that poses major security risks to private and public software. …
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… In a blog post, Anthropic said it’s “been in ongoing discussions with US government officials about Claude Mythos Preview and its offensive and defensive cyber capabilities,” and an unnamed Anthropic official told Axios that CISA was among the agencies briefed. …
Anthropic’s tightly controlled rollout of Claude Mythos has taken an awkward turn. …
… One factor in this shift may be Anthropic’s limited April rollout of its powerful Mythos model, which the company said had flagged “thousands of high-severity vulnerabilities, including some in every major operating system and web browser.” Mythos also seemed to create an opening to thaw tensions b… …
… 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. …
… While Anthropic claims its Claude Opus 4.6 can barely find zero-days, Mythos Preview can pop up working exploits 72.4 percent of the time. It's a good thing Anthropic has limited its use for now; if it lives up to its hype, Mythos would crash the internet in a day. …