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Can post-training unlock reasoning potential hidden during pretraining?
MiMo: Unlocking the Reasoning Potential of Language Model – From Pretraining to Posttraining
Published: 12 May 2026 · Updated: 13 July 2026
Read the original sourceWhat the paper says
MiMo proposes a multi-modal pretraining and post-training pipeline that leverages vision and audio data to enhance reasoning in text. The authors claim significant improvements on reasoning tasks.
The Critique
Multi-modal pretraining may enrich representations, but the link between vision/audio and abstract reasoning is tenuous. The paper does not provide a clear ablation showing that the modalities contribute to reasoning rather than general performance.
Why It Matters
Exploring new data modalities may reveal synergies that improve reasoning and robustness.
What They Missed
The authors do not address the increased computational cost and potential privacy concerns of using audio/visual data.
The Big Question
To what extent can non-text modalities enhance textual reasoning, and what are the trade-offs?