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AI聊天机器人越聊越“笨”?可能真不是错觉
Sou Hu Cai Jing· 2026-02-21 14:26
不知道大家有没有这种感觉:和AI机器人短时间聊天的话还行,时间一长,就感觉对话开始变的前言不搭后语、逻辑不通。 其实这种感觉并不是错觉。 研究人员对包括 GPT-4.1、Gemini 2.5 Pro、Claude 3.7 Sonnet、o3、DeepSeek R1 和 Llama 4 在内的 15 款顶尖模型进行了超过 20 万次模拟对话 分析,揭示出一个被称为"迷失会话"的系统性缺陷。 数据显示,这些模型在单次提示任务中的成功率可达 90%,但当同样的任务被拆解成多轮自然对话后,成功率骤降至约 65%。 研究指出,模型的核心能力仅降低约 15%,但"不可靠性"却飙升 112%。 最近,微软发表的一项研究证实,即使是目前最先进的大语言模型,在多轮对话中的可靠性也会急剧下降。 研究人员指出,现有的基准测试主要基于理想的单轮场景,忽略了模型在真实世界中的行为。 因此,对于那些依赖 AI 构建复杂对话流程或智能体的开发者而言,这一结论意味着未来将要接受严峻挑战。 再来看看其他消息。 也就是说,AI 大模型仍然具备解决问题的能力,但在多轮对话中变得高度不稳定,难以持续跟踪上下文。 | Short Form | Nam ...
OpenAI大幅下调支出目标?
傅里叶的猫· 2026-02-21 14:13
今天关于 OpenAI 大幅下调支出目标的新闻被讨论得非常广,我们在星球中也第一时间对这个新闻 做了说明。 这个新闻的源头应该是 CNBC 发的这个新闻。 下午,国内的媒体也进行了转发,但很可惜,国内媒体并没有搞清楚始末就进行了转发。 1.4 Trillion 的由来 在去年 10 月份,奥特曼直播中表示,OpenAI 致力于投入 1.4 万亿美元,建设总计 30GW 的算力 资源。这里的 1.4 万亿可以理解成 Capex,但不仅包括 OpenAI,还有它的合作伙伴。 而 600 B 是指 OpenAI 到 2030 年的 OpEx,所以根本就不是一回事。 这里简单解释一下 CapEx 和 OpEx 的区别: 资本支出(CapEx) CapEx 是公司花大钱买或建造能用很多年的东西,比如买机器、建厂房、买服务器或升级大楼。这 些钱不是马上花完就没了,而是把东西记成资产,之后每年通过"折旧"一点点算进成本。简单说, 就是为了未来赚钱而做的长期投资,花钱的时候现金流出很大,但当期利润不会一下子掉很多,因为 成本被分摊了。 运营支出(OpEx) OpEx 是公司每天正常运转必须花的钱,比如付员工工资、交房租、水电 ...
Nvidia insiders dump over $105 million in monster NVDA stock trade
Finbold· 2026-02-21 13:57
Core Insights - Nvidia insiders have sold over $105 million worth of company stock in 2026, with a total of 575,280 shares sold, primarily through automatic sales in January and early February [1][5]. Insider Sales Activity - Colette Kress, Nvidia's CFO, executed four transactions, selling shares at prices ranging from $172.40 to $188.85 between January 2 and February 4, 2026 [2][4]. - Ajay Puri reported two significant sales of 200,000 shares each on January 7 and January 21, 2026, at prices of $187.25 and $180.04 respectively [2][4]. - Donald Robertson sold 80,000 shares on January 2, 2026, at $188.85 per share [3][4]. Overall Insider Sales Trend - The last 12 months have seen no insider purchases, with total sales amounting to approximately $1.79 billion across 15 executives, contributing to a 24-month total of about $2.88 billion [5]. Context of Sales - The insider sales are attributed to routine diversification, option exercises, and personal financial planning rather than indicating any doubts about the company's future [6]. Strategic Moves in AI - Nvidia is reportedly in advanced discussions to invest up to $30 billion in OpenAI, which is valued at $730 billion pre-money, as part of a funding round that could raise up to $100 billion [7]. - A multiyear partnership with Meta Platforms was announced on February 17, 2026, to enhance AI infrastructure, involving the deployment of millions of GPUs and CPUs [8]. Upcoming Financial Performance - Investors are anticipating Nvidia's fourth-quarter fiscal 2026 earnings report on February 25, with expected revenue of approximately $65 billion and earnings per share of $1.52, following a record $57 billion in Q3 revenue [9].
AI进化速递丨OpenAI推进新一轮巨额融资
Di Yi Cai Jing· 2026-02-21 13:20
②阿里千问宣布推出Qwen Coding Plan,支持更多模型; AI进化速递丨OpenAI推进新一轮巨额融资 ①OpenAI下调算力支出目标至6000亿美元,推进新一轮巨额融资; ④第二届国际人形机器人论坛19日至20日在瑞士比尔/比安创新园举行,探讨机器人应用发展趋势。 ③武汉出台十条措施,全力支持人工智能"超级个体"创新发展; ...
哈梅内伊及其子成为美国打击目标;印度AI峰会连爆名场面:两掌门拒绝握手;Claude引爆网络安全股重挫| 一周国际财经
Mei Ri Jing Ji Xin Wen· 2026-02-21 12:48
每日经济新闻 WEEKLY国际财经 2026 | 02 | 21 美最高法院6:3裁定 特朗普关税违法 1.4万亿美元收入"落空" 或撕开美国财政黑洞 周 焦点 ◆ 当地时间2月20日,美国最高法院以6:3裁定特朗普政府依据《国际紧急经济权力法》实施的大规模 关税违法。这场司法终槌直接让美国未来十年超1.4万亿美元关税预期收入"落空",还留下1750亿美元 的退税悬案。千亿财政窟窿亟待填补,美债收益率应声上涨。面对裁决,特朗普政府紧急唤醒沉睡52年 的法律条款,宣布开征10%的"全球进口关税"。 ◆ 美媒:哈梅内伊及其子成为美国考虑的打击目标,多国敦促在伊朗公民尽快撤离;OpenAI毛利率下 滑,大幅下调"烧钱"目标至6000亿美元;印度AI峰会连爆名场面:两掌门拒绝握手,Anthropic CEO拿 手机念演讲稿;"末日博士"彼得·希夫:金价飙升预示着美国将面临远超2008年的复合型危机;金价重 返5100美元,白银、美油双双涨超9%。 美最高法院6:3裁定特朗普关税违法 1.4万亿美元收入"落空" 或撕开美国财政千亿黑洞 特朗普 图片来源:新华社发(李源清摄) 当地时间2026年2月20日,美国最高法院以 ...
突发黑天鹅,全线闪崩
Zhong Guo Ji Jin Bao· 2026-02-21 11:06
【导读】一天干掉一个行业,这次是网络安全 中国基金报记者 泰勒 大家好,关注一下AI再次带来的恐慌,Anthropic推出Claude安全工具,网络安全类股全线暴跌。 隔夜美股,网络安全软件公司的股价集体跳水,Crowdstrike Holdings是跌幅最大的公司之一,下跌了约8%,而Cloudflare大跌约8.1%。与此同时, Zscaler下跌约5.5%,SailPoint下跌约9.4%,Okta下跌约9.2%。Global X网络安全ETF下跌约4.9%,收于2023年11月以来的最低水平。 | 制 五日 日K 周K 月K 季K 年K 120分 60分 30分 15分 5分 1分 | | 区间统计 | | 全屏显示 | | --- | --- | --- | --- | --- | | 均价:400.80 最新:388.60 -33.54 -7.95% | | | | | | 457.17 | 8.30% | | 成交明细 | | | 448.41 | 6.22% | 15:59 | 388.65 | 100 | | | | TR:28 | 388.66 | 76 | | 439.65 | 4.15 ...
大幅下调!AI,突传重磅消息
凤凰网财经· 2026-02-21 11:04
据最新消息,OpenAI已大幅下调算力建设支出目标至6000亿美元,该金额较此前宣称的1.4万亿美元基础设施承诺大幅缩水。 据报道,消息人士透露,由于外界普遍担忧其扩张野心远超潜在收入,这家AI巨头正提供一个更低的数字和更明确的支出时间表。这些要求匿名的人士表 示,OpenAI预计其2030年总收入将超过2800亿美元,其中消费者业务和企业业务贡献近乎持平。他们称,公司提出的支出计划旨在更直接地与其预期收入 增长挂钩。 消息人士称,OpenAI在2025年创造了131亿美元的收入,超出了其100亿美元的目标。全年消耗资金80亿美元,低于90亿美元的预期。如今,OpenAI将2030 年的收入目标定为约2800亿美元。不过,据The Information报道,OpenAI调整后的毛利率在2025年已下滑至33%,该公司仍预计到2030年现金流才能转 正。 OpenAI这家公司成立于2015年,最初是一个非营利性研究实验室,自2022年推出聊天机器人ChatGPT后迅速进入主流。消息人士称,ChatGPT目前每周活 跃用户数超过9亿,高于10月份的8亿。 面对来自谷歌和Anthropic等竞争对手的挑战,Ope ...
突发黑天鹅,全线闪崩!
Zhong Guo Ji Jin Bao· 2026-02-21 10:53
Core Viewpoint - The introduction of a new security feature by AI company Anthropic has led to a significant decline in cybersecurity stocks, highlighting investor fears regarding competition from AI-native companies [1][3]. Group 1: Market Reaction - Cybersecurity software companies experienced a collective stock price drop, with Crowdstrike Holdings falling approximately 8% and Cloudflare down about 8.1% [1]. - Other notable declines included Zscaler at around 5.5%, SailPoint at 9.4%, and Okta at 9.2%, while the Global X Cybersecurity ETF decreased by about 4.9%, reaching its lowest level since November 2023 [1]. Group 2: AI Impact - Anthropic's new tool is designed to scan code repositories for security vulnerabilities and suggest targeted software patches for manual review, currently in a limited research preview phase [2][3]. - The decline in cybersecurity stocks is part of a broader trend where the software sector has faced selling pressure due to concerns over competition from AI-driven solutions, with the iShares expanded technology software industry ETF down over 23% this year, potentially marking the largest quarterly drop since the 2008 financial crisis [3]. Group 3: Analyst Insights - Analysts warn that AI-driven automation solutions could disrupt existing software business models, compress profit margins, and force companies to innovate rapidly, with the market closely monitoring how AI will reshape cybersecurity [4]. - The recent sell-off in the software sector, particularly in cybersecurity, is attributed to new AI tools from companies like Anthropic, OpenAI, and Google, raising concerns about "vibe coding," which allows users to create applications using AI, potentially diminishing demand for traditional products and impacting company growth, margins, and pricing power [4].
OpenAI大幅下调算力支出目标
2 1 Shi Ji Jing Ji Bao Dao· 2026-02-21 10:33
记者丨张嘉钰 陈归辞 编辑丨曾静娇 AI巨头有大动作! 据券商中国消息,美国人工智能巨头OpenAI正向投资者更新长期资本支出规划:公司计划到2030年投 入总计约6000亿美元用于算力建设,这一目标较其此前宣称的1.4万亿美元基础设施承诺已大幅缩水。 与此同时,OpenAI还在推进一轮规模或超1000亿美元的融资,叠加本轮融资后,其整体估值有望突破 8500亿美元,较去年底飙升70%。 据中国基金报援引知情人士消息,本轮融资的第一部分将主要来自战略投资者,包括亚马逊、软银集 团、英伟达和微软。如果这些公司的投资额接近讨论范围的上限,总承诺金额将接近1000亿美元。预计 这些公司将在本月底前敲定各自的配额。 据悉,该交易的下一阶段将包括风险投资机构、主权财富基金和其他财务投资者,预计将在稍后完成, 并可能使总筹款金额大幅提升。 据21世纪经济报道,当地时间1月19日,OpenAI首席财务官萨拉·弗莱尔(Sarah Friar)发文公开OpenAI 过去三年年收入及算力规模。 数据显示,OpenAI2025年年度经常性收入(ARR)突破200亿美元,2024年为60亿美元,2023年为20亿 美元;2025年算 ...
Should You Buy Oracle Stock Right Now?
The Motley Fool· 2026-02-21 10:11
Core Viewpoint - Oracle is heavily investing in artificial intelligence (AI) and is positioned to benefit significantly if the AI market develops favorably [1] Group 1: Financial Performance - Oracle Cloud Infrastructure (OCI) revenue is growing at 66% year over year, with a backlog exceeding $523 billion due to substantial AI contracts with major companies like Meta Platforms, Nvidia, and OpenAI [2] - OCI is now the fastest-growing major cloud platform, surpassing Amazon Web Services and Microsoft's Azure [2] Group 2: Strategic Risks - Oracle is taking on tens of billions in debt and is contemplating selling profitable business units to finance the necessary data center buildout for AI customers [3] - The company's financial health could be jeopardized if the AI investments do not yield the expected results, potentially leading to a significant decline in stock value [4] Group 3: Market Outlook - A large portion of Oracle's backlog is reliant on OpenAI, which has financial commitments that far exceed its revenue and has a negative net income [6] - The current risk-reward profile for Oracle is viewed unfavorably, leading to skepticism about the stock's potential performance [6]