+++StepByStep

The prompt

+++StepByStep(numbered=true) — place this line above your question to force the model into an explicit, numbered reasoning trace before it gives a final answer.

Expected result

A numbered list of reasoning steps followed by a clearly labeled final answer, instead of one unstructured paragraph.

Why it works

This is an informal community convention, not an official API parameter — it works because models pattern-match the syntax to structured-output requests seen in training data.