Behind the scenes, OpenAI’s o1 offers several responses to each question and analyzes them to find the best one. It can perform more complex tasks, like writing a business plan or creating a crossword puzzle, while explaining its reasoning—which helps the model learn a little bit from each answer.

All that added brainpower is expensive. OpenAI is now paying to generate multiple answers to a single query, instead of just one.

아무래도 기자는 여러 답변 생성하고 하나 택하는 방식으로 이해한듯 하네요