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Kimi K3.1 Pro drops to ninth in Artificial Analysis Intelligence Index v5

1 reports1 sources10/28/2026 updated

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Artificial Analysis updated its Intelligence Index to version 5, causing the open-source model Kimi K3.1 Pro to fall from fourth to ninth place. The score gap between Kimi and closed-source models widened from 3 to 12 points. The organization described the change as a major overhaul of the index system.

Written with AI from the reporting · updated 10/28/2026

Latest developmentOct 28, 23:04
Artificial Analysis updates Intelligence Index, Kimi K3.1 Pro drops nine spots as open-closed model gap widens to 12 points
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  1. 1Unclassified fact stationOct 28, 00:00recorded Oct 28, 23:07single sourcerevised

    Kimi K3.1 Pro 排名下跌至第九

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    Evidence & revisions · 1 source records
    Subject：
    kimi
    Action：
    排名下跌
    Object：
    AI 模型排名
    Occurred (fact side)：
    Oct 28, 00:00
    The Decoder ↗Report pageRevision 2 · currently revised
    Published (valid side)：
    Oct 28, 23:04
    First seen (known side)：
    Oct 28, 23:07
    Fact stationSingle source · one-sided claimRevised

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Oct 28
  1. The DecoderRelated fact: single sourceSource report revised
    Artificial Analysis updates Intelligence Index, Kimi K3.1 Pro drops nine spots as open-closed model gap widens to 12 points

    Report first recorded Oct 28, 23:07

    Artificial Analysis version 5 of its Intelligence Index now attributes 60 percent of scoring to private test sets, aiming to curb benchmark overfitting. Open-source model Kimi K3.1 Pro fell from fourth to ninth place, widening the gap between open and closed models from 3 to 12 points. Closed-source model Grok 4.7 also dropped 12 points in the updated rankings.

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