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Model Fallback Middleware (Python)
LangChain· 2025-11-18 17:00
Hey folks, it's Sydney from the Python open source team at Langchain, and I'm super excited to bring you our next edition of our middleware series. So, model outages can be incredibly unpredictable, but luckily with Langchain's new model fallback middleware, the reliability of your application doesn't have to be. Whatever the reason may be that your model calls are no longer working, that could be a provider outage or an API quota exhausted, lingchain's model fallback middleware can help you fall back to a ...
Sam Altman reveals exact date of intelligence explosion
Matthew Berman· 2025-10-29 19:01
AI Development Timeline - OpenAI estimates an intern-level AI research assistant by September 2026 and a legitimate AI researcher by March 2028 [1][2][3][23] - The industry anticipates that automated AI research will lead to an intelligence explosion, rapidly advancing towards super intelligence [4][5] AI Task Capabilities - AI is currently capable of autonomously completing tasks for durations of seconds, minutes, and hours, with the industry aiming for days, weeks, months, and years [7] - The industry emphasizes that efficiency in token usage and compute during task duration is as important as the duration itself [8][9] AI Model Trustworthiness - OpenAI is exploring methods to ensure AI models are aligned with human incentives by allowing models to think freely without intervention, to gain insights into their thought processes [15][17][18][20][21] - OpenAI emphasizes the importance of controlled privacy for AI models to retain the ability to understand their inner processes [19][20] Infrastructure and Investment - OpenAI's infrastructure plan includes building a factory to produce AI factories, with a potential output of a gigawatt per week [25] - OpenAI's current infrastructure projects are valued at $1.4 trillion [24] Organizational Structure - OpenAI's structure consists of the OpenAI Foundation (nonprofit) governing the OpenAI group (public benefit corporation), with the nonprofit owning 26% of the PBC equity [28][29] - The OpenAI Foundation has a $25 billion commitment to health/curing diseases and AI resilience [29] Concerns and Future Development - OpenAI acknowledges concerns about the addictive potential of AI products like Sora and chatbots [30][31][32][33] - OpenAI plans to continue supporting GPT-40 while developing better models [35][36] - OpenAI expects significant advancements in model capability within six months [40]
通用人工智能(AGI)已经来了
3 6 Ke· 2025-09-08 00:21
Core Viewpoint - The concept of Artificial General Intelligence (AGI) is not a distant future but is already present, evolving through recursive processes that enhance its depth and scope [1][9][39] Group 1: AI and Organizational Transformation - The recent government document emphasizes the importance of "intelligent native enterprises," which represent a blend of technology and organizational models that transform production processes [3][5] - The challenge lies in bridging the gap between understanding AI technology and organizational operations, which is crucial for the implementation of AGI [8][18] - The emergence of "unmanned companies" signifies a shift towards AI-driven organizational structures, where AI becomes the primary agent of value creation [11][17] Group 2: Speed of Change and Value Creation - The rapid evolution of AI technologies is reshaping industries at an unprecedented pace, making previous models of operation obsolete [9][23] - Companies must adapt to the accelerated pace of AI development, as traditional business cycles may not align with the speed of technological advancements [26][28] - The focus should shift from merely using AI tools to redefining business models that maximize AI's potential [29][30] Group 3: New Paradigms and AI Thinking - The concept of "intelligent priority" suggests a need for new thinking patterns that prioritize virtual solutions and scalable experimentation [34][36] - The relationship between AI and human roles is being redefined, necessitating a shift in how companies approach collaboration between humans and AI [35][36] - The idea of "unmanned companies" raises questions about the future of business structures in a world where intelligence is evenly distributed, leading to potential economic stagnation [37][39]
X @Avi Chawla
Avi Chawla· 2025-08-23 19:32
LLM Context Length Growth - GPT-3.5-turbo 的上下文长度为 4k tokens [1] - OpenAI GPT4 的上下文长度为 8k tokens [1] - Claude 2 的上下文长度为 100k tokens [1] - Llama 3 的上下文长度为 128k tokens [1] - Gemini 的上下文长度达到 1M tokens [1]
X @Avi Chawla
Avi Chawla· 2025-08-23 06:30
LLM Context Length Growth - The industry has witnessed a significant expansion in LLM context length over time [1] - GPT-3.5-turbo initially supported 4k tokens [1] - OpenAI GPT4 extended the limit to 8k tokens [1] - Claude 2 further increased the context length to 100k tokens [1] - Llama 3 achieved a context length of 128k tokens [1] - Gemini reached an impressive 1M tokens [1]
Legora AI vs. Harvey AI
20VC with Harry Stebbings· 2025-08-16 05:00
Competitive Strategy - Being second to market forced the company to prioritize product development to catch up [1] - The company focused solely on the application layer [2] - Initial product quality was critical, as early negative experiences could lead to customer churn, especially when priced 10x higher than alternatives like GPT4 [2] - The company initially had only one chance to impress potential partners [2][3] Product & Market Perception - Early adopters of competing products had negative experiences, leading them to prefer GPT4 [2] - The company acknowledges that brand recognition now allows for a second chance to win back customers with improved products and new features [3]
OpenAI Unveils ChatGPT-5: Everything Announced at OpenAI's Summer Update in 12 Minutes
CNET· 2025-08-07 23:02
Product Launch & Adoption - GPT5 is launched as a major upgrade over GPT4, aiming for Artificial General Intelligence (AGI) [2] - Chat GPT has grown to approximately 700 million weekly users since its launch 32 months ago [1] - GPT5 is rolling out to free, Pro, and Team users immediately, with Enterprise and Education users gaining access the following week [6] - Free tier users will have access to GPT5, transitioning to GPT5 Mini upon reaching their limit [6] Key Features & Capabilities - GPT5 aims to provide the perfect answer with the perfect amount of thinking, eliminating the choice between speed and thoughtfulness [4] - GPT5 can write entire computer programs from scratch, enabling "software on demand" [3] - GPT5 excels in areas requiring deep reasoning and expert-level knowledge, including math, physics, and law [5] - Voice experience is enhanced with natural-sounding voices, video integration, and consistent language translation, available to free users for hours and nearly unlimited for paid subscribers [19][20] User Experience & Customization - GPT5 Pro subscribers will get unlimited GPT5 access with extended thinking for more detailed responses [7] - Subscribers can customize the voice experience to their specific needs [21] - GPT5 demonstrates creativity, unlocking new possibilities for users [26]
Pipecat Cloud: Enterprise Voice Agents Built On Open Source - Kwindla Hultman Kramer, Daily
AI Engineer· 2025-07-31 18:56
Core Technology & Product Offering - Daily 公司提供实时音视频和 AI 的全球基础设施,并推出开源、供应商中立的项目 Pipecat,旨在帮助开发者构建可靠、高性能的语音 AI 代理 [2][3] - Pipecat 框架包含原生电话支持,可与 Twilio 和 Pivo 等多个电话提供商即插即用,还包括完全开源的音频智能转向模型 [12][13] - Pipecat Cloud 是首个开源语音 AI 云,旨在托管专为语音 AI 问题设计的代码,支持 60 多种模型和服务 [14][15] - Daily 推出 Pipecat Cloud,作为 Docker 和 Kubernetes 的轻量级封装,专门为语音 AI 优化,解决快速启动、自动缩放和实时性能等问题 [29] Voice AI Agent Development & Challenges - 构建语音代理需要考虑代码编写、代码部署和用户连接三个方面,用户对语音 AI 的期望很高,要求 AI 能够理解、智能、会话且听起来自然 [5][6] - 语音 AI 代理需要快速响应,目标是 800 毫秒的语音到语音响应时间,同时需要准确判断何时响应 [7][8] - 开发者使用 Pipecat 等框架,以避免编写turn detection(转弯检测)、中断处理和上下文管理等复杂代码,从而专注于业务逻辑和用户体验 [10] - 语音 AI 面临长会话、低延迟网络协议和自动缩放等独特挑战,冷启动时间至关重要 [25][26][30] - 语音 AI 的主要挑战包括:背景噪音会触发不必要的LLM中断,以及代理的非确定性 [38][40] Model & Service Ecosystem - Pipecat 支持多种模型和服务,包括 OpenAI 的音频模型和 Gemini 的多模态实时 API,用于会话流程和游戏互动 [15][19][22] - 行业正在探索 Moshi 和 Sesame 等下一代研究模型,这些模型具有持续双向流架构,但尚未完全准备好用于生产 [49][56] - Gemini 在原生音频输入模式下表现良好,且定价具有竞争力,但模型在音频模式下的可靠性低于文本模式 [61][53] - Ultravox 是一个基于 Llama 3 7B 主干的语音合成模型,如果 Llama 3 70B 满足需求,那么 Ultravox 是一个不错的选择 [57][58] Deployment & Infrastructure - Daily 公司在全球范围内提供端点,通过 AWS 或 OCI 骨干网路由,以优化延迟并满足数据隐私要求 [47] - 针对澳大利亚等地理位置较远的用户,建议将服务部署在靠近推理服务器的位置,或者在本地运行开放权重模型 [42][44] - 语音到语音模型的主要优势在于,它们可以在转录步骤中保留信息,例如混合语言,但音频数据量不足可能会导致问题 [63][67]
“AI 教父”Geoffrey Hinton 首度在华演讲:AI 恰似一只小虎崽,而人类本身是大语言模型?
AI前线· 2025-07-27 04:30
Core Viewpoint - Geoffrey Hinton emphasizes the potential of AI to surpass human intelligence and the necessity for global cooperation to ensure AI remains beneficial to humanity [3][14][17] Group 1: AI and Human Intelligence - Hinton compares human cognition to large language models, suggesting that both can produce "hallucinations," but AI can transmit knowledge more efficiently through shared parameters [3][9] - The relationship between humans and AI is likened to raising a tiger cub, where the challenge lies in ensuring AI does not become a threat as it matures [14][17] - Hinton argues that AI can significantly enhance efficiency across various industries, making its elimination impractical [3][14] Group 2: AI Development Paradigms - Hinton discusses two paradigms of AI: logical reasoning and biological learning, highlighting the evolution of AI understanding through neural connections [4][5] - He notes the historical development of AI models, from simple models in the 1980s to the complex architectures of today, such as Transformers [5][7] Group 3: Knowledge Transfer and Efficiency - The efficiency of knowledge transfer between humans is limited, with a maximum of 100 bits per second, while AI can share knowledge at a vastly superior rate, potentially in the billions of bits [12][13] - Hinton introduces the concept of knowledge distillation, where larger neural networks can transfer knowledge to smaller networks, akin to a teacher-student relationship [11][12] Group 4: Global Cooperation on AI Safety - Hinton calls for the establishment of an international community focused on AI safety, where countries can collaborate on training AI to be beneficial rather than harmful [15][17] - He suggests that despite differing national interests, there is a shared goal among countries to prevent AI from dominating humanity, which could lead to cooperative efforts similar to those during the Cold War [15][17]
大模型强化学习,相比PPO,DPO 还是个弟弟?
自动驾驶之心· 2025-06-22 14:09
Core Insights - The article discusses the theoretical and experimental shortcomings of DPO (Direct Preference Optimization) compared to PPO (Proximal Policy Optimization), highlighting that while DPO appears to lead in open-source benchmarks, top closed-source models like GPT-4 and Claude utilize PPO [1][2]. DPO's Deficiencies - DPO encounters issues similar to reward hacking, where it can produce solutions that do not align with human preferences, despite lacking an explicit reward model [2]. - The theoretical framework suggests that the strategies derived from PPO are a true subset of those from DPO when given true reward signals, indicating that DPO may generate solutions that deviate from reference strategies [3]. Experimental Findings - Experiments reveal that DPO can assign higher probabilities to data points not covered in the preference dataset, leading to unexpected behaviors, while PPO optimizes effectively under KL constraints [6]. - The performance of DPO can be improved by reducing distribution drift through methods like SafeSFT, but it still does not surpass PPO [8]. Performance Metrics - Benchmark results consistently show that PPO outperforms both iterative DPO and DPO in various tasks, particularly in programming competitions [10]. - Specific metrics indicate that models using PPO achieve significantly higher pass rates compared to those using DPO, with PPO models reaching up to 44.4% in pass@5 metrics, while DPO models struggle to achieve meaningful results [11][12]. Conclusion - The findings suggest that while DPO has theoretical merits, its practical application in high-stakes tasks like programming is limited compared to PPO, which continues to set new standards in performance [13].