Compare / Claude Fable 5 vs GPT-5 Mini

Claude Fable 5 vs GPT-5 Mini

21 results from 4 sources that measured both models. Each row is in the source's own units; there is no overall winner.

Claude Fable 5
Anthropic · profile
GPT-5 Mini
OpenAI · profile
Results compared
21
Shared sources
4
BenchmarkMetricClaude Fable 5GPT-5 Mini
Arena (formerly LMArena)reportedOverallArena rating 1,4831,394
Arena (formerly LMArena)reportedBusiness, management and financeArena rating 1,5031,381
Arena (formerly LMArena)reportedCreative writingArena rating 1,5011,324
Arena (formerly LMArena)reportedExpert promptsArena rating 1,5501,400
Arena (formerly LMArena)reportedInstruction followingArena rating 1,5091,373
Arena (formerly LMArena)reportedOverallArena rating 1,5041,390
Arena (formerly LMArena)reportedWriting, literature and languageArena rating 1,5081,352
Artificial AnalysisreportedArtificial Analysis Coding Indexindex score 76.515.6
Artificial AnalysisreportedArtificial Analysis Intelligence Indexindex score 49.620.6
Artificial AnalysisreportedGPQA Diamond% of questions 92.6%82.8%
Artificial AnalysisreportedHumanity's Last Exam% of questions 55.5%21.5%
Artificial AnalysisreportedIFBench% of instructions 63.5%75.4%
Artificial AnalysisreportedLong-context reasoning (AA-LCR)% of questions 82.3%72.3%
Artificial AnalysisreportedSciCode% of problems 61.0%39.0%
Artificial AnalysisreportedTerminal-Bench 2.1% of tasks 84.6%3.7%
Artificial AnalysisreportedTerminal-Bench 4.0% of tasks 42.4%0.0%
Artificial AnalysisreportedTerminal-Bench Hard% of tasks 62.9%33.3%
Artificial AnalysisreportedΤ-bench banking% of tasks 38.1%15.5%
Artificial AnalysisreportedΤ²-bench telecom% of tasks 98.5%71.1%
SimpleQA Verified (Epoch AI)reportedCorrect answers% of questions 70.7%21.6%
Vending-Bench 2reportedMoney after a yearUS dollars $5,680.26$-31.18

Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.