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o3

답하기 전에 긴 추론을 거쳐, 추론 시 연산으로 정확도를 높인다

OpenAI 모델 클로즈드 소스
입력텍스트이미지텍스트

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무엇인가

o3 is a reasoning model OpenAI released in April 2025, part of the o series. Unlike models that answer directly, it performs an internal chain of reasoning before producing its output, then derives the answer from that reasoning. The series is trained with reinforcement learning so the model learns to spend more reasoning steps when they buy a more reliable answer. o3 accepts text and image input and serves as the main version for mathematics, coding and scientific reasoning tasks.

기억할 만한 이유

It turned test-time compute into a product: by reasoning at length before answering, o3 spends more compute at inference to buy steadier correctness, and made this the default shape of mainstream reasoning models.

주요 사양

Type
Reasoning model
Context window
200K tokens
Modality
Text, image in; text out
Released
2025-04

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