SOURCE-LINKED INTELLIGENCE
Claude Fable 5.1 (Adaptive Reasoning, Max Effort, Default Fallback): artificial analysis intelligence index
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
- 53.4
- unit
- index
- dimensions
- {"metric":"artificial_analysis_intelligence_index","model":"3e87c73e-a257-495e-9730-367a66229811","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":70.547,"timeToFirstAnswerTokenSeconds":137.194,"timeToFirstTokenSeconds":137.194} → {"outputTokensPerSecond":71.496,"timeToFirstAnswerTokenSeconds":137.695,"timeToFirstTokenSeconds":137.695}
2026-09-25T16:23:29.199Z
- performance:
{"outputTokensPerSecond":69.925,"timeToFirstAnswerTokenSeconds":136.366,"timeToFirstTokenSeconds":136.366} → {"outputTokensPerSecond":70.547,"timeToFirstAnswerTokenSeconds":137.194,"timeToFirstTokenSeconds":137.194}
2026-09-24T16:13:45.287Z
- performance:
{"outputTokensPerSecond":66.762,"timeToFirstAnswerTokenSeconds":113.57,"timeToFirstTokenSeconds":113.57} → {"outputTokensPerSecond":69.925,"timeToFirstAnswerTokenSeconds":136.366,"timeToFirstTokenSeconds":136.366}
2026-09-23T16:13:28.179Z
- performance:
{"outputTokensPerSecond":65.081,"timeToFirstAnswerTokenSeconds":123.03,"timeToFirstTokenSeconds":123.03} → {"outputTokensPerSecond":66.762,"timeToFirstAnswerTokenSeconds":113.57,"timeToFirstTokenSeconds":113.57}
2026-09-22T16:03:50.148Z
- performance:
{"outputTokensPerSecond":71.608,"timeToFirstAnswerTokenSeconds":132.181,"timeToFirstTokenSeconds":132.181} → {"outputTokensPerSecond":65.081,"timeToFirstAnswerTokenSeconds":123.03,"timeToFirstTokenSeconds":123.03}
2026-09-20T21:52:07.471Z
- pricing:
Not provided → {"input":10,"output":50} - performance:
Not provided → {"outputTokensPerSecond":71.608,"timeToFirstAnswerTokenSeconds":132.181,"timeToFirstTokenSeconds":132.181}