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      "title": "Anthropic refined Fable 5's safety classifier to reduce unnecessary fallbacks to Opus",
      "source_url": "https://www.anthropic.com/news/improving-fable-5-s-biology-safeguards",
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      "permalink": "https://techflow.svetandroida.cz/en/tip/anthropic-refined-fable-5-s-safety-classifier-to-reduce-unnecessary-fallbacks",
      "status": "published",
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      "summary": "Anthropic has improved the safety classifier for Claude Fable 5 to significantly reduce false positives—cases where the model unnecessarily blocks requests and routes them to the less capable Opus 5. The update reduces biology-related fallbacks by approximately 85 percent, enabling Fable 5 to assist with a wider range of biology tasks while maintaining caution on dual-use applications in professional research and drug development.",
      "summary_generated_by": "ai",
      "submitted_by": "Petr Mišák",
      "submitted_kind": "editor",
      "published_at": "2026-08-11T09:05:50Z",
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