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Moonshot AI releases open-weight Kimi K2 base and instruction models

Moonshot AI published Kimi K2, a trillion-parameter mixture-of-experts family with 32 billion active parameters, open weights and an instruction model designed for tool use and agentic tasks.

CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM55confidence 93/100

Why it moved the index

Public weights for a large agentic model family materially expanded access to advanced reasoning, coding and tool-use capability outside controlled APIs.

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Assessment history

  1. R1
    Toward 55 · confidence 93

    New open-weight July 2025 release with exact official repository and model-publication timestamps; no durable collision.

    12 Aug 2026