GPT-5.3-Codex
OpenAI🇺🇸
openai/gpt-5.3-codexGPT-5.3-Codex is OpenAI's February 2026 Codex-native coding agent, pairing frontier coding performance with general reasoning for long-horizon, real-world engineering work. It supports steering the agent mid-task and is notable as a model OpenAI used to help build itself.
비용 비율
2.5x
컨텍스트
400K
출시일
2026년 2월 24일
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