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微软BitDistill将LLM压缩到1.58比特:10倍内存节省、2.65倍CPU推理加速
机器之心· 2025-10-20 07:48
Core Insights - The article discusses the challenges of deploying large language models (LLMs) efficiently in downstream applications, particularly on resource-constrained devices like smartphones, due to high memory and computational costs [1][7] - A new approach called BitDistill is introduced, which aims to compress existing pre-trained LLMs into a 1.58-bit BitNet model while minimizing performance loss and training costs [4][19] Group 1: Challenges and Solutions - LLMs face significant deployment challenges as their scale increases, leading to instability in training and performance degradation when quantized to lower bit representations [2][10] - The introduction of extreme low-bit LLMs, such as BitNet, aims to reduce memory usage and accelerate inference, but achieving comparable accuracy to high-precision models requires extensive pre-training [1][4] Group 2: BitDistill Framework - BitDistill consists of three key stages: model refinement, continuous pre-training, and distillation-based fine-tuning [8][12] - The first stage addresses activation variance issues in low-bit models by introducing additional normalization layers to stabilize the optimization process [9][30] - The second stage involves continuous training with a small amount of pre-training data to adapt the model to the 1.58-bit representation before fine-tuning on specific tasks [11][32] - The third stage employs knowledge distillation techniques to align the performance of the quantized model with that of the full-precision teacher model [13][27] Group 3: Experimental Results - BitDistill demonstrates excellent scalability, achieving performance comparable to full-precision baselines while providing significant improvements in inference speed (approximately 2x) and memory usage (nearly 10x reduction) [19][20] - Experiments on text classification and summarization tasks show that the 1.58-bit BitDistill model maintains high accuracy and quality, with results indicating a strong performance across various model sizes [16][21] - The method exhibits cross-architecture generality, maintaining stable performance even when using different pre-trained models [22] Group 4: Ablation Studies - Ablation studies indicate that each stage of the BitDistill process is crucial for achieving the desired balance between efficiency and accuracy, with the removal of any stage leading to significant performance drops [25][26] - The combination of logits and attention distillation techniques yields the best results, highlighting the importance of using multiple strategies to mitigate quantization challenges [27][29]
瑞穗前瞻软件行业Q3财报季:云服务与AI需求强劲 有望交出超预期“答卷”
Zhi Tong Cai Jing· 2025-10-20 06:27
Group 1 - The core viewpoint of the articles indicates that the U.S. software industry is expected to achieve better-than-expected growth in Q3, driven by strong performance in public cloud, consumer data, and the continued adoption of artificial intelligence [1][2] - Mizuho's analyst team, led by Gregg Moskowitz, reported robust survey results for Q3, highlighting good demand in cybersecurity and resilience in the Software as a Service (SaaS) sector, with some improvement in specific sub-segments [1] - The strongest performing software companies identified by Mizuho include Microsoft, Datadog, Palo Alto Networks, and CyberArk, all receiving "outperform" ratings with target price increases [1] Group 2 - Mizuho expects Atlassian to deliver solid performance, with a current target price of $235 and an "outperform" rating [2] - The anticipated median revenue growth for the industry in Q3 is approximately 3% quarter-over-quarter and 18% year-over-year, slightly lower than the strong growth rates of the past two quarters [2] - Mizuho's survey results for Microsoft Azure are optimistic, predicting a year-over-year growth rate exceeding the company's guidance of approximately 37% [2]
微软已向英特尔下达其下一代AI芯片Maia 2的晶圆代工订单,计划采用18A或18A-P制程
Ge Long Hui· 2025-10-20 05:31
Core Insights - Microsoft has placed a wafer foundry order with Intel for its next-generation AI chip, Maia 2, which will utilize the 18A or 18A-P process technology [1] Group 1 - The Maia 2 chip is intended for use in Microsoft's Azure data centers and other AI infrastructure [1]
Justin Wolfers Says Calling AI Bubble Is A Bit Like Trying To Spot The Top Of Mt. Everest, Economist Questions 'Confident Bears' - Apple (NASDAQ:AAPL), Amazon.com (NASDAQ:AMZN)
Benzinga· 2025-10-20 04:05
Core Viewpoint - Economist Justin Wolfers argues that fears of an AI bubble may be overstated, suggesting that the high valuations in the tech sector could be justified by genuine technological advancements [1][2]. Group 1: AI Boom and Market Valuations - Wolfers describes the AI boom as a potential "beautiful industrial revolution," indicating that significant investments align with a real technological shift [1]. - He emphasizes that while the market could be in a bubble, the current valuations may be rational if AI fulfills its potential in automating tasks [2]. - Goldman Sachs supports this view, projecting an $8 trillion opportunity in AI and asserting that current investment levels are sustainable [3]. Group 2: Diverging Perspectives on the Market - There is a stark contrast between bullish and bearish perspectives, with some analysts labeling the market as "Dotcom on steroids," citing deteriorating company fundamentals [3]. - Crescat Capital highlights that top tech stocks are valued 270% higher as a percentage of GDP compared to the dot-com peak, raising concerns about current market conditions [3]. Group 3: Economic Conditions and AI Investment - Wolfers warns against overconfidence in identifying market bubbles, stating that certainty often leads to errors in judgment [2][4]. - He notes that the U.S. economy is effectively operating as "two economies," with the AI boom masking weaknesses in other sectors, suggesting a potential "non-AI recession" without AI-related investments [4]. Group 4: Performance of AI-Linked Stocks and ETFs - The S&P 500 index has gained 13.55% year-to-date, while many AI-linked stocks and ETFs have significantly outperformed the market [5]. - Notable performers include the iShares US Technology ETF with a year-to-date performance of 23.58% and Nvidia Corporation with a 32.47% increase [6][7].
1.58bit不输FP16!微软推出全新模型蒸馏框架,作者全是华人
量子位· 2025-10-20 03:46
Core Insights - Microsoft has introduced a new distillation framework called BitNet Distillation (BitDistill), which achieves model quantization with minimal performance loss while reducing memory consumption to 1/10 of FP16 [1][6][22]. Group 1: Framework Overview - BitDistill has been validated on models with 4 billion parameters and below, such as Qwen and Gemma, and is theoretically applicable to other Transformer models [2]. - The framework consists of three interconnected stages: Model Refinement, Continue Pre-training, and Distillation-based Fine-tuning [8]. Group 2: Model Structure Optimization - The primary goal of model structure optimization is to support the training of 1.58-bit models and address optimization instability issues common in low-precision training [9]. - BitDistill introduces a normalization module called SubLN in each Transformer layer to enhance training stability by controlling the variance of activations [10][12]. Group 3: Continue Pre-training - A lightweight continue pre-training phase is designed to help the model gradually adapt its weights from full precision to a distribution suitable for 1.58-bit representation [14][15]. - This phase allows the model to "learn how to be quantized," preventing information loss during the fine-tuning stage [16]. Group 4: Distillation-based Fine-tuning - BitDistill employs a dual distillation mechanism—Logits distillation and multi-head attention distillation—to recover the performance of the quantized model [18]. - Logits distillation uses the probability distribution from the full precision model as "soft labels" to guide the quantized model [19]. Group 5: Performance Evaluation - BitDistill demonstrates performance nearly equivalent to full precision models across various downstream tasks while significantly reducing memory usage and improving inference speed [22]. - In text classification tasks, the 1.58-bit model achieved accuracy levels comparable to full precision fine-tuned models, outperforming directly quantized models [23][24]. - In text summarization tasks, BitDistill's generated text quality was nearly identical to that of full precision models, with slight improvements in BLEU scores [25][27]. Group 6: Generalizability and Compatibility - BitDistill has been successfully applied to other pre-trained models like Gemma and Qwen2.5, showing high fidelity in performance recovery [28]. - The framework is compatible with various quantization strategies, proving its utility as an independent distillation solution applicable to multiple post-quantization optimization scenarios [28].
1.5万亿承诺后,硅谷白宫关系变了多少
Huan Qiu Shi Bao· 2025-10-20 02:22
Core Insights - Major tech CEOs from Silicon Valley made a collective investment commitment of $1.5 trillion during a White House dinner, indicating a shift towards closer ties between the White House and the tech industry, although many commitments remain verbal [1][2][7] Investment Commitments - Meta's CEO Mark Zuckerberg pledged $600 billion, Apple’s CEO Tim Cook also committed $600 billion, and Google’s CEO Sundar Pichai promised $250 billion. Microsoft’s CEO Satya Nadella indicated an annual investment of approximately $75 to $80 billion in the U.S. [2][3] - Apple plans to invest $600 billion in U.S. manufacturing over four years, including a $2.5 billion investment in Corning for glass production in Kentucky and collaborations with companies like TSMC for semiconductor production [3] - Meta is investing heavily in data centers and infrastructure, with projected spending of $66 to $72 billion by 2025, marking a 68% increase from the previous year [4] - Google’s parent company, Alphabet, announced a $25 billion investment in data centers and AI infrastructure over the next two years [4] - Microsoft anticipates a global investment of $80 billion for AI data centers, with over half allocated to the U.S. [5] Relationship Dynamics - The relationship between Silicon Valley and the White House has evolved from friction to closer cooperation, significantly impacting the tech industry and political landscape [7][10] - Tech companies are seeking support from the White House in areas such as permitting, talent acquisition, trade predictability, and regulatory clarity [8][9] Company-Specific Requests - Apple seeks federal and state support for high-end manufacturing, including subsidies and tax incentives [9] - Meta requires stable and low-carbon energy supplies for its data centers and seeks to mitigate project delays due to local opposition [9] - Alphabet is focused on government support for AI talent development and green energy agreements [9] - Microsoft emphasizes the need for predictable approvals for large capital expenditures to ensure efficient deployment of funds [9] Broader Implications - The evolving relationship between the White House and Silicon Valley is expected to reshape the global tech landscape, with potential impacts on international perceptions of U.S. tech companies [12][13] - Concerns are rising about the ability of the U.S. to attract top talent and lead in AI development due to tightening immigration policies and regulatory uncertainties [11][12]
突发!三大科技巨头,加速撤离中国
是说芯语· 2025-10-20 02:18
Group 1 - Major tech giants Microsoft, Amazon, and Google are intensifying efforts to relocate their product manufacturing and data centers outside of China [1] - Microsoft plans to fully transition production of Surface devices and data center servers outside of China by 2026, requiring suppliers to prepare for this shift [2][5] - Microsoft has been moving a significant portion of its server production overseas since last year, aiming for at least 80% of the bill of materials (BOM) to come from outside China [4] Group 2 - Amazon's AWS is also pursuing a strategy to produce servers and AI data center equipment outside of China, considering reducing reliance on long-term PCB supplier SYE [9][10] - Industry insiders note that completely eliminating Chinese suppliers from AWS's supply chain is unrealistic due to their significant role and advantages in technology, quality, and cost [11][12][16] Group 3 - Google is actively expanding its production base in Southeast Asia, specifically requesting suppliers to increase server production capacity in Thailand, where new facilities are being established [16] - Thailand is emerging as a major server assembly hub, with companies like Quanta and Inventec planning to build SMT production lines, including a $25 million investment by Quanta [19] - Vietnam is becoming a key server production base for Foxconn outside of China, while India is also experiencing significant opportunities with Apple's production expansion, which now accounts for about 20% of Apple's global iPhone output [20][22] Group 4 - Southeast Asian countries are enhancing infrastructure investments and offering tax incentives to attract global tech manufacturing shifts [23]
苹果智能正努力入华;沐曦股份即将上会丨新鲜早科技
2 1 Shi Ji Jing Ji Bao Dao· 2025-10-20 01:40
Group 1: Technology Updates - Microsoft announced a major update for Windows 11, introducing AI features that allow users to interact with devices using voice commands and integrate Copilot into the taskbar [2] - Apple CEO Tim Cook revealed that Apple Intelligence is working to enter the Chinese market, emphasizing the transformative potential of AI in people's lives [3] Group 2: Corporate Actions - GoerTek announced the termination of its planned acquisition of two subsidiaries of Lianfeng Commercial Group due to failure to reach agreement on key terms [4] - UBTECH Robotics secured a contract worth 126 million yuan for the procurement and installation of intelligent data collection and testing center equipment [5] - Silan Microelectronics plans to invest 20 billion yuan in a 12-inch high-end analog integrated circuit chip manufacturing line, aiming for a production capacity of 540,000 pieces annually [5] - Mu Xi Integrated Circuit (Shanghai) Co., Ltd. is set to undergo a listing review on October 24, focusing on high-performance GPU chips for various applications [6] - WeRide Inc. has passed the listing hearing for a secondary listing on the Hong Kong Stock Exchange [7] Group 3: Financing and Investments - Tianbing Technology initiated its IPO process, focusing on the development of liquid rocket engines and launch vehicles [9] - Yidao Information plans to acquire 100% equity of Langguo Technology and Chengwei Information, enhancing its capabilities in smart education and IoT [10] - Jingwei Huikai intends to acquire 100% equity of Zhongxing System for 850 million yuan, entering the private network communication sector [11] - AI video company Aishi Technology completed a 100 million yuan B+ round financing, reporting an annual recurring revenue of over 40 million USD [12]
TMT行业周报(10月第3周):海外AI景气度进一步提升-20251020
Century Securities· 2025-10-20 01:25
Investment Rating - The report provides a positive outlook on the TMT industry, particularly highlighting the increasing demand for AI capabilities and related infrastructure [3][5]. Core Insights - The overseas demand for computing power is expected to rise significantly, with OpenAI announcing a procurement of 10GW computing power acceleration cards from Broadcom, aiming for deployment by the end of 2029 [5]. - Anthropic's release of the Claude Haiku 4.5 lightweight model is anticipated to enhance AI penetration across various scenarios due to its balance of performance, speed, and cost [5]. - The report suggests focusing on segments of the computing power supply chain, including optical modules, PCBs, servers, and power supplies, as they are likely to benefit from the growing demand [5]. Summary by Sections Market Weekly Review - The TMT sector experienced declines in the week of October 13-17, with the computer sector down by 5.61%, communication down by 5.92%, media down by 6.27%, and electronics down by 7.14% [5][10]. - The report highlights the performance of various sub-sectors, noting significant declines in semiconductor equipment and optical components [5][13]. Industry News and Key Company Announcements - OpenAI's procurement of computing power and the expansion of partnerships with companies like Oracle and AMD are key developments indicating a robust future for AI infrastructure [5][25]. - The report mentions significant advancements in AI models and applications, including new models from Microsoft and Baidu, which are expected to drive further innovation in the industry [5][19][20].
Windows 10停服,但其实还能继续当钉子户
3 6 Ke· 2025-10-20 00:28
站在2025年这个时间点回望过去,最初的Windows 10同样表现糟糕,只是经过了数年的小修小补才臻 至大成。然而经过4年的迭代,现在的Windows 11仍是一言难尽。 十年之期已至,Windows 10正式"飞升"。2025年10月14日,微软方面对于Windows 10操作系统的支持正 式结束,未来Windows 10用户将无法获得任何安全更新、错误修复,以及其他功能更新。 关于停更Windows 10的原因,微软也已经在官方博客文章中明说,"如果你有运行Windows 10的设备, 我们建议将它们升级到更新的、服务中且受支持的 Windows 版本"。 如今距离Windows 11发布已经过去4年时间,微软为何还会通过停止维护备受好评的Windows 10这一方 式,来安利Windows 11呢?当然是因为Windows 11既不叫好也不叫座,微软可以说是软的不行,就只 能来硬的。 事实上,Windows 11推广不利有两大关键因素。其一是微软要求电脑要满足TPM 2.0认证才能升级 Windows 11,但只有6代以后的酷睿平台中,才会在主板中直接集成TPM模块,所以就意味着有相当多 的老电脑是无 ...