AIIC AI Intelligence Centre

SOURCE-LINKED INTELLIGENCE

Claude Fable 5.1 (Adaptive Reasoning, Low Effort, Default Fallback): gpqa

Artificial Analysis · observation · Publication date unknown

Benchmark data by Artificial Analysis. Current measurement; upstream does not provide a measurement timestamp or benchmark revision here.

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recordType
observation
region
Global
value
0.881
unit
score
dimensions
{"metric":"gpqa","model":"05776db7-f5c0-40f7-b824-079160f8cfa8","parallel_queries":1,"prompt_length":1000}

Evidence & attribution

Artificial Analysis

First collected: 2026-09-19T21:50:47.018Z. This is not the publication date.

Observed changes

AIIC observation times, not verified publisher revision times. Up to eight recent revisions.

2026-09-26T16:33:30.713Z

  • performance: {"outputTokensPerSecond":47.566,"timeToFirstAnswerTokenSeconds":3.178,"timeToFirstTokenSeconds":3.178} → {"outputTokensPerSecond":49.599,"timeToFirstAnswerTokenSeconds":4.394,"timeToFirstTokenSeconds":4.394}

2026-09-25T16:23:29.199Z

  • performance: {"outputTokensPerSecond":47.395,"timeToFirstAnswerTokenSeconds":4.224,"timeToFirstTokenSeconds":4.224} → {"outputTokensPerSecond":47.566,"timeToFirstAnswerTokenSeconds":3.178,"timeToFirstTokenSeconds":3.178}

2026-09-24T16:13:45.287Z

  • performance: {"outputTokensPerSecond":50.229,"timeToFirstAnswerTokenSeconds":3.898,"timeToFirstTokenSeconds":3.898} → {"outputTokensPerSecond":47.395,"timeToFirstAnswerTokenSeconds":4.224,"timeToFirstTokenSeconds":4.224}

2026-09-23T16:13:28.179Z

  • performance: {"outputTokensPerSecond":50.37,"timeToFirstAnswerTokenSeconds":4.861,"timeToFirstTokenSeconds":4.861} → {"outputTokensPerSecond":50.229,"timeToFirstAnswerTokenSeconds":3.898,"timeToFirstTokenSeconds":3.898}

2026-09-22T16:03:50.148Z

  • performance: {"outputTokensPerSecond":50.109,"timeToFirstAnswerTokenSeconds":4.338,"timeToFirstTokenSeconds":4.338} → {"outputTokensPerSecond":50.37,"timeToFirstAnswerTokenSeconds":4.861,"timeToFirstTokenSeconds":4.861}

2026-09-20T21:52:07.471Z

  • pricing: Not provided → {"input":10,"output":50}
  • performance: Not provided → {"outputTokensPerSecond":50.109,"timeToFirstAnswerTokenSeconds":4.338,"timeToFirstTokenSeconds":4.338}