{"data":{"id":"a76c77ce-c798-4e06-b349-d1d15c73f25d","title":"Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark","summary":"Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, which it says improve coding, reasoning and vision. On Irregular's CyScenarioBench, Fable 5.2 completed 76.3% of challenges, versus 61.7% for Fable 5.1 and 61% for OpenAI's GPT-6 Cyber.","solution":"N/A -- no mitigation discussed in source.","labels":["industry","security"],"sourceUrl":"https://thehackernews.com/2026/11/anthropics-claude-fable-52-beats-gpt-6.html","publishedAt":"2026-11-10T08:16:14.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":["Anthropic","OpenAI","Google"],"affectedVendorsRaw":["Claude Fable 5.2","Claude Mythos 5.2","Claude Opus 5.5","Claude Sonnet 5.5","Claude Mythos 5.1","GPT-6 Cyber","GPT-6 Astra","Gemini 4 Argon","Gemini 3.8 Flash Cyber","Gemini 3.1 Pro","Claude Security","Fable 5.1"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":"2026-11-10T08:16:14.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":null,"aiComponentTargeted":null,"llmSpecific":true,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null}}