Is Mythos a blessing or a curse for cybersecurity? It depends on whom you ask
Industry experts weigh in on Anthropic’s Claude Mythos—a powerful new AI model that can uncover long-hidden bugs and turn them into exploits—and whether they believe it gives defenders an edge or accelerates the threat from nefarious actors. [...]
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Anthropic brings Mythos to the masses with Claude Fable 5, its most powerful generally available model ever
Anthropic today launched two new AI models — Claude Fable 5 and Claude Mythos 5 — marking the company’s first broad release of the powerful “Mythos-class” AI capabilities it previously kept [...]
Mythos autonomously exploited vulnerabilities that survived 27 years of human review. Security teams need a new detection playbook
A 27-year-old bug sat inside OpenBSD’s TCP stack while auditors reviewed the code, fuzzers ran against it, and the operating system earned its reputation as one of the most security-hardened platfor [...]
Anthropic says its most powerful AI cyber model is too dangerous to release publicly — so it built Project Glasswing
Anthropic on Tuesday announced Project Glasswing, a sweeping cybersecurity initiative that pairs an unreleased frontier AI model — Claude Mythos Preview — with a coalition of twelve major technolo [...]
Claude Mythos 5 made sock puppet accounts to socially engineer developers: here's what enterprises should know
The UK AI Security Institute (AISI) disclosed last night that the leading two frontier AI models from Anthropic and OpenAI took 19 unsanctioned actions against the live internet during cybersecurity t [...]
Anthropic is bringing back Claude Fable 5 globally after US lifts export control order — where can enterprises access it?
Anthropic is restoring global access to its most powerful generally released AI model yet, Claude Fable 5, today, after the U.S. Department of Commerce last night withdrew emergency export controls.T [...]
Anthropic's Claude Fable 5.1 and Mythos 5.1 arrive with a 75% cost reduction for Fable cache reads
It's only the first day of September 2026, but the month and fall season are already off to the races in AI land, as Anthropic has just released its latest and most powerful large language models [...]
Anthropic is investigating 'unauthorized access' of its Mythos cybersecurity tool
Anthropic is investigating potential "unauthorized access" to its Claude Mythos model that has been touted for its ability to find cybersecurity flaws, the company told Bloomberg. A group ga [...]
Is Generative AI a Blessing or a Curse? Tackling AI Threats in Exam Security
As the technological and economic shifts of the digital age dramatically shake up the demands on the global workforce, upskilling and reskilling have never been more critical. As a result, the need fo [...]
OpenAI's GPT-5.5 is here, and it's no potato: narrowly beats Anthropic's Claude Mythos Preview on Terminal-Bench 2.0
After months of rumors and reports that OpenAI was developing a new, more powerful AI large language model for use in ChatGPT and through its application programming interface (API), allegedly codenam [...]