Artificial Analysis reports Kimi K3.1 Pro's personality and writing style differ from Kimi K3
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Artificial AnalysisOfficialKimi K3.1 Pro shifts writing style toward bold text, headings, and tablesAIArtificial Analysis says Kimi K3.1 Pro's responses use fewer parenthetical asides, em dashes, contractions, and italics than Kimi K3. The model uses more bold text, headings, and tables instead.
- Artificial AnalysisOfficialKimi K3.1 Pro gains on Organization but trails K3 on Warmth and Imagination
AIArtificial Analysis says Kimi K3.1 Pro ranks higher than Kimi K3 on Organization, rising from 33 to 88. It ranks lower on Warmth (93 to 51), Imagination (88 to 53), Expressiveness (93 to 63), and Informativeness (51 to 23).
- Artificial AnalysisOfficialKimi K3.1 Pro clusters with GPT-6 models, unlike Kimi K3
AIArtificial Analysis says Kimi K3.1 Pro falls in a different personality family from Kimi K3 in its default model selection. Kimi K3 is most similar to GLM-5.3 and Claude Fable 5.1, while Kimi K3.1 Pro is most similar to GPT-6.1 Sol and GPT-6 Astra.
- Artificial AnalysisOfficialKimi K3.1 Pro shows largest personality shift from Kimi K3
AIArtificial Analysis reports that Kimi K3.1 Pro shows the largest personality change it has measured against a direct predecessor on AA-PersonalityBench. Across 30 traits, its percentile ranks moved by an average of 30 points from Kimi K3's, versus 23 for GPT-6 Sol to GPT-6.1 Sol, and 18 traits shifted 25 points or more.
