← Releases🇺🇸Anthropic·Tue, Sep 1Claude Fable 5.1 (Adaptive Reasoning, High Effort, Default Fallback)✓CompareInput / 1M$10Output / 1M$50Blended / 1M$20Output speed55 tok/sTime to first token10.31sContext—BenchmarksIntelligenceⓘ51.2Codingⓘ79.1Mathⓘ—GPQAⓘ0.9MMLU-Proⓘ—LiveCodeBenchⓘ—AIMEⓘ—SciCodeⓘ0.6HLEⓘ0.6MATH-500ⓘ—