AI Research Atlas
Preprint / conference paper

Reasoning methods

Zero-shot step-by-step prompting

A simple step-by-step instruction improved reasoning results without worked examples in the prompt.

Takeshi Kojima and colleagues

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The contribution

The paper investigated prompting language models to reason through a problem before extracting an answer. The phrase “Let's think step by step” improved performance on several benchmark tasks without supplying task-specific reasoning demonstrations.

What this does not establish

The effect is empirical and task-dependent. It neither guarantees valid reasoning nor makes every model a reliable zero-shot reasoner.

Why this date?

The preprint was submitted on 24 May 2022. This is the source for the familiar zero-shot phrase, distinct from Wei and colleagues' worked-example method.

This entry follows the linked publication. Read the source and date conventions.

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