{"data":{"id":"45383375-4ceb-4a83-9b5e-2abbf3987979","title":"llm-anthropic 0.31","summary":"llm-anthropic 0.31 adds support for Anthropic's Fable 5.2 and Mythos 5.2 models, so users can run prompts against claude-fable-5.2 through the llm CLI. In the author's pelican-on-a-bicycle SVG tests, the max reasoning effort level returned no image, running out of tokens after 128,000 thinking tokens, a bug the author says also appeared with Opus 5.5 but not in Fable 5 or 5.1. Fable 5.2 is priced at $8 per million input tokens and $40 per million output tokens.","solution":"N/A -- no mitigation discussed in source.","labels":["industry"],"sourceUrl":"https://simonwillison.net/2026/Nov/9/llm-anthropic/","publishedAt":"2026-11-09T23:58:46.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":[],"issueType":"news","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":["Anthropic"],"affectedVendorsRaw":["Anthropic","Claude","Fable 5.2","Mythos 5.2","llm-anthropic","Opus 5.5","Fable 5","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":"2026-11-09T23:58:46.000Z","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}}