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Thinking Tokens Had Diminishing Returns

A 151-run analysis finds task structure predicts marginal reasoning efficiency better than nominal difficulty.

Published Updated Story ID: mp-2026-08-30-015
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Summary

A 151-run analysis finds task structure predicts marginal reasoning efficiency better than nominal difficulty.

Sequential inference tasks showed stronger token-normalized gains than knowledge recall, while higher reasoning effort sometimes lowered accuracy. The paper argues for selecting reasoning mode by task, effort and deployment context rather than enabling it universally.

Why it matters

A 151-run analysis finds task structure predicts marginal reasoning efficiency better than nominal difficulty.

Limits and context

No additional limitation was separately recorded.

Key claims

  1. A 151-run analysis finds task structure predicts marginal reasoning efficiency better than nominal difficulty.

    Evidence: source-2026-08-30-017

Sources

  1. arXiv preprint 2608.26235arXiv · primary research

Corrections

No corrections have been recorded for this story.