This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Sam Altman, CEO of OpenAI, takes his seat before a meeting of the White House Task Force on Artificial Intelligence Education in the East Room of the White House, Thursday, Sept. 4, 2025, in Washington. Credit: AP Photo/Alex Brandon If the future of the internet looks like a constant stream of amusing videos generated by artific ...

With a net expense ratio of 0.55%, this fund is considerably more expensive than the 0.03% expense ratio found in the Vanguard S&P 500 ETF .The fund's expense ratio of 0.2% is higher than some passively managed ETFs, but it's still reasonable for investors looking for a simple way to bet on today's existing winners.The fund is a particularly good buy for investors who believe that the largest companies by market cap will benefit the most from AI.The Ten Titans make up 39% of the S&P 500, which is already a ...

Sora 2 性能提升 - 相比于旧版本，Sora 2在物理准确性、真实感和可控性方面都更胜一筹，并具备音画同步能力 [1] - Sora 2生成的视频没有物体相互穿透或无故消失，人物手指未出现畸变，且能自动生成连贯的评论音频 [5] - 模型可直接生成最长20秒的1080p视频 [7] 与谷歌Veo 3的对比测试 - 在诺曼底士兵场景中，Veo 3严格遵循文本描述，雨水效果更逼真，人物运动幅度更大，而Sora 2省略了“跪下”等部分动作 [16][17] - 在ASMR和男歌手场景中，两个模型均能实现精准的音画同步，细节处理到位，效果惊艳足以以假乱真 [20][22] - 在假新闻场景中，Sora 2胜出，其视频包含演播室主播和现场镜头切换，使内容更像真正的新闻报道，而Veo 3画面较模糊 [24][25] - 在中文脱口秀场景中，Sora 2能根据中文提示词自动生成中国演员及对应口型，但提示词中夹杂的英文发音不准；Veo 3目前仅支持英语提示，无法成功生成 [27] 技术局限性与挑战 - 在生成体操视频时，Sora 2和Veo 3均出现翻车，如动作突然倍速、多出胳膊或手臂旋转异常等物理错误 [28][29][31][33] - 有观点指出，当生成的视频长度加倍时，文本到视频生成器的能耗会增加四倍，引发对计算资源用于此类应用而非癌症研究等领域的资源错配担忧 [9][10] 产品化与市场策略 - Sora 2目前可通过网页端或iOS App（美加地区）免费使用，但需要邀请码和美区IP [11][12] - OpenAI为Sora 2采取了邀请制、安全水印及限制公众人物深度伪造等安全措施，以防止滥用，App常因版权保护等原因拒绝生成视频 [35] - OpenAI推出了基于自拍的客串功能，并推出了设计极似TikTok的Sora iOS应用，包含推荐算法驱动的视频流和社交互动功能 [39][42][44] - 有分析认为，通过应用程序建立产品壁垒可使公司在模型指标暂时落后时，仍能握住用户入口和使用习惯 [46]

中国信息通信研究院日前发布的数据显示，经测算，2024年我国人工智能产业规模已超9000亿元， 同比增长24%。截至2025年9月，人工智能企业数量超5300家，全球占比达到15%，形成覆盖基础底 座、模型框架、行业应用的完整产业体系。 此外，工业和信息化部人工智能标准化技术委员会介绍了成立以来在人工智能行业标准研制、生态 建设、课题研究等方面取得的成果。目前已征集到167项人工智能标准立项建议，与中国通信标准化协 会联合推动20项人工智能标准发布。（记者周圆） 【纠错】 【责任编辑:吴京泽】 会上，中国信通院发布了"2025人工智能产业十大关键词"，即基础超级模型、自主性更强的智能 体、走向实训的具身智能、萌芽中的世界模型、AI正在重塑软件、开放智算生态、面向行业的高质量 数据集、开源成为标配、缓解模型幻觉、人工智能国际公共产品。 中国信通院人工智能研究所所长魏凯认为，人工智能十大关键词是追踪行业发展的重要窗口， 如"走向实训的具身智能"一词背后是具身智能正在加速走出实验室，走向竞技场和训练场，但从"实 训"走向"干活"仍面临高质量数据缺、模型泛化难、软硬协同难等挑战。总体来看，2025年人工智能技 术、应 ...

Brand Engagement Network Inc. (NASDAQ:BNAI) is one of the oversold tech stocks to invest in. Effective September 18, Brand Engagement Network/BEN announced the appointment of Ruy Carrasco, M.D., to its Board of Directors. Carrasco has served as BEN’s Chief Medical Informatics Officer since 2021 and brings extensive expertise in healthcare, informatics, and enterprise innovation to the board. BEN is actively executing its strategy and delivering secure, compliant AI solutions across various regulated secto ...

Artificial intelligence is the greatest investment opportunity of our lifetime. The time to invest in groundbreaking AI is now, and this stock is a steal! AI is eating the world—and the machines behind it are ravenous. Each ChatGPT query, each model update, each robotic breakthrough consumes massive amounts of energy. In fact, AI is already pushing global power grids to the brink. Wall Street is pouring hundreds of billions into artificial intelligence—training smarter chatbots, automating industries, and b ...

文章核心观点 - 人工智能是巨大的投资机会，但其发展面临能源危机，为能源基础设施公司创造了“后门”投资机遇 [1][2][3] - 一家未被市场关注的公司整合了AI能源需求、美国液化天然气出口、制造业回流及核能等多重趋势，估值极具吸引力 [5][6][7][8][10] AI行业能源需求 - AI是史上最耗电的技术，单个数据中心耗电量堪比小型城市，正将全球电网推向极限 [1][2] - AI的每次查询、模型更新和机器人突破都消耗大量能源，对电力需求激增 [1][2] - 行业领袖发出警告，AI的未来取决于能源突破，否则明年可能面临电力短缺 [2] 目标公司业务定位 - 公司拥有关键的能源基础设施资产，定位为AI能源需求激增的受益者 [3][7] - 公司是全球少数能跨石油、天然气、可再生燃料和工业基础设施执行大型复杂EPC项目的企业之一 [7] - 公司在美国液化天然气出口领域扮演关键角色，将受益于“美国优先”能源政策 [5][7] - 公司在核能领域拥有关键基础设施，核能是未来清洁可靠电力的来源 [7][14] 公司财务状况与估值 - 公司完全无负债，且持有大量现金，现金储备相当于其总市值近三分之一 [8] - 剔除现金和投资后，公司交易市盈率不足7倍，估值极具吸引力 [8][10] - 公司还持有一家热门AI公司的巨额股权，为投资者提供间接的AI增长敞口 [9] 宏观趋势利好 - 制造业回流趋势将推动公司获得重建、改造和重新设计设施的业务 [5] - 美国液化天然气出口预计将激增，公司处于收费环节 [5][14] - AI基础设施超级周期、制造业回流、液化天然气出口激增和核能构成公司增长的四大驱动力 [14]

Nebius Group N.V. (NASDAQ:NBIS) is one of the Unstoppable Stocks to Buy and Hold for the Next 5 Years. On September 22, the company announced that, in connection with its previously announced underwritten public offering of Class A ordinary shares, the underwriters exercised in full their option to purchase an additional 1,621,621 shares. This has been done at the offering price of $92.50, less underwriting discounts and commissions, resulting in Nebius Group N.V. (NASDAQ:NBIS)’s aggregate gross proceeds o ...

Amazon.com Inc. (NASDAQ:AMZN) is one of the best NASDAQ stocks to buy according to hedge funds. On September 27, Amazon Vice President Karthik Ramakrishnan, who was involved in the development of artificial general intelligence/AGI, stepped down from the company after 13 years of service. Ramakrishnan was a member of the team responsible for creating the Alexa voice assistant and Echo devices. His prior professional experience includes roles at Netscape and Tellme Networks, the latter of which was later a ...

整理 | 褚杏娟 Neel Nanda，今年 26 岁，但已经成为人们口中的"传奇人物"了。 Neel 2020 年本科毕业于剑桥大学纯数学专业，曾在量化金融领域 Jane Street 和 Jump Trading 公司实习，但他觉得这并不适合自己，于是在毕业后花 了一年时间探索人工智能安全。尽管涉足机械可解释性研究仅四年左右，Neel 却贡献了多项基础性成果，多篇论文被大量引用。 | 21 | | --- | | TITLE | CITED BY | YEAR | | --- | --- | --- | | Training a Helpful and Harmless Assistant with Reinforcement Learning from Human | 2878 | 2022 | | Feedback | | | | Y Bai, A Jones, K Ndousse, A Askell, A Chen, N DasSarma, D Drain, ... | | | | arXiv preprint arXiv:2204.05862 | | | | A Mathematical Fram ...