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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. …
… 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. …
Anthropic has officially launched Claude Opus 4.8, the latest version of its flagship AI mode. With this rollout the company promises that it may have fixed one of AI's biggest flaws. …
… 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. …
… Richard Lawler May 13 AI cybersecurity updates for MDASH, Mythos, and GPT-5.5. On Wednesday, the AISI, which evaluates AI models for the British government, said both Anthropic’s Claude Mythos Preview and OpenAI’s GPT-5.5 showed progress well above previous trends on cybersecurity testing. …
… Anthropic's less risky AI model Lastly, Anthropic's Opus 4.7 is, let's say, a more accessible and friendly version of AI than Mythos . Mythos is a highly advanced AI model that the company says is so potentially dangerous to cybersecurity that it has been kept from public release so far. …
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