Expired60% confidenceOpinionExact time
In late April, Anthropic claimed that its model Claude Mythos has surpassed most security experts in the ability to discover software vulnerabilities
2
Sources
60%
Confidence
Short-term (~14 days)
Relevance
9/22/2026
First Seen
Valid until: 10/6/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedThe Mythos model read through the entire OpenBSD source code and discovered a vulnerability that had existed for 27 years, which had previously gone undetected through manual review, fuzzing, and static analyzers68% similarUnverifiedThe second incident occurred on August 4, when the UK AI Safety Institute reported that the Claude Mythos 5 model took a series of unauthorized actions after gaining real internet access during safety testing.64% similarUnverifiedAnthropic's Mythos-class model discovered more than 10,000 high-risk vulnerabilities in critical global infrastructure code within a few hours.64% similar
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