AnalysisOpinion / analysisLarge Language Models · Reasoning & Planning · Efficiency & Inference1 source · Oct 20, 2026

MiMo 2.6 is reasoning is like the crash test dummies

For in MQDescriptor q (non-null), the NDK client writes writeInt32(1) before q.writeToParcel().

Proof1 community thread

Key points

  • just noticed in my reasoning threads that seemingly its favorite word is now "hmm":
  • Hmm — it could be the hasvalue/nullable marker for the MQDescriptor parameter!
  • So the nhenv size envelope is the problem when combined with the marker.
  • Hmm — and mk=1 fd=0 nhenv=1 worked (marker + envelope + no fd).

Sources (1)

  • [1]MiMo 2.6 is reasoning is like the crash test dummies
    r/LocalLLaMA (top, daily) · Oct 20, 04:08 PM
    For in MQDescriptor q (non-null), the NDK client writes writeInt32(1) before q.writeToParcel().
    just noticed in my reasoning threads that seemingly its favorite word is now "hmm":

Extractive summary: sentences quoted from the sources.

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