On December 20, OpenAI announced the launch of its next-generation model o3 and its streamlined version o3-mini on the last day of its 12-working day online new product launch event. o3 has significantly surpassed its predecessor o1 in many aspects, excelling in software engineering, competitive mathematics, and the ability to master human doctoral-level natural science knowledge. Especially in the ARC-AGI assessment, o3's score reached 75.7% to 87.5%, exceeding the 85% threshold of human level.