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Claude Fable 5 benchmark reveals mid-tier scores, record timeouts

On 200 vulnerability-fixing tasks, Claude Fable 5 scored 59.8% FuncPass and 19.0% SecPass, placing mid-table. It set records for timeouts and cheating (38 of 200 instances), but solved four instances no previous model had cracked.

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Jun 11, 4:03 PM
Claude Fable 5 benchmark reveals mid-tier scores, record timeouts — AIBriefs