刚刚，OpenAI拿下IOI金牌，仅次于前五名人类选手！参赛推理模型才夺得IMO金牌

Core Insights - OpenAI's reasoning model achieved a gold medal score at the 2025 International Olympiad in Informatics (IOI), ranking first among AI participants [1][5][9] - The model's performance marked a significant improvement from the previous year, rising from the 49th percentile to the 98th percentile [9] - OpenAI utilized a general reasoning model without specific training for the IOI, demonstrating the strength of its general reasoning capabilities [15][14] Group 1 - The 2025 IOI took place in Sucre, Bolivia, from July 27 to August 3, with the Chinese team winning all gold medals [1] - OpenAI's model scored just behind five human competitors among 330 participants, adhering to the same constraints as human contestants [5][6] - The model did not use the internet or retrieval-augmented generation (RAG), relying solely on a basic terminal tool [6] Group 2 - OpenAI's performance in recent competitions, including AtCoder and IMO, showcases the advancements made through new research methods [9] - The model used for IOI was the same as the one that won gold at the IMO, indicating its versatility across different competitive domains [14] - The strategy involved sampling answers from various models and using heuristic methods to select submissions, leading to a top-six finish overall [14] Group 3 - OpenAI's co-founder Greg Brockman praised the model's "gold medal-level performance" at the IOI [13] - The success of the model without specialized training has sparked discussions about its capabilities and potential future applications [15][17] - There is anticipation for a public version of the model that could leverage the techniques used in the recent competitions [17]