机器之心报道 机器之心编辑部 没想到吧，在别家节前卷大模型时，OpenAI 悄悄发布了 Sora2。 而且，这次是直接产品化，推出了 App，甚至还有配套的视频推送算法，声称可以防成瘾。这是要做自己的 TikTok？ 在介绍文章中，OpenAI 更是直言 Sora2 直接进入了视频领域的 GPT 3.5 时刻，也就是当时的 ChatGPT 时刻。 如此看来，OpenAI对Sora2的技术能力与产品体验都极为满意。 我们也搞到了邀请码，在后续文章中将体验一波。海外已经体验上的网友称，这就是媒体、电影和娱乐的新时代。 据介绍，Sora 在物理准确性、真实感和可控性方面都优于以往的系统。 另外，就是它还具备同步的对话和音效能力。 Altman 称之为 ChatGPT for creativity 时刻。 接下来就让我们先看下Sora2的官方效果吧。 Sora来了 2024 年 2 月发布的初代 Sora 模型，在很多方面都堪称视频领域的 GPT-1 时刻 —— 这是视频生成首次让人觉得开始行得通，像物体恒存性这样的简单行为，也随 着预训练计算量的提升而出现。从那以后，Sora 团队一直专注于训练具备更先进世界模拟能 ...

Core Viewpoint - The article discusses the inherent contradictions faced by content platforms like Douyin regarding the transparency of recommendation algorithms and their impact on user behavior and content quality [2][3]. Group 1: Algorithm Transparency and User Interaction - Douyin has established an algorithm transparency project team to explain the principles of its recommendation algorithms and its approach to content governance [4]. - The recommendation algorithm learns user behavior patterns by estimating the probability of user interactions with videos, such as likes and comments, based on historical data [5][9]. - The algorithm's effectiveness is enhanced by continuously feeding historical data into machine learning models, allowing for more accurate predictions of user behavior [9][10]. Group 2: Value Scoring and A/B Testing - Douyin determines the value score of user behaviors through A/B testing, adjusting the recommendation algorithms for different user groups to observe changes in key performance indicators [14]. - Multiple performance indicators may change in different directions, and Douyin's data analysis team creates relationships between these indicators to ensure they align with the primary goal of long-term user retention [16]. Group 3: Content Quality and Governance - Douyin's content operations team focuses on increasing the proportion of high-quality content by defining what constitutes "high-quality supply" and regularly reviewing and refining these standards [17][18]. - The platform employs a multi-layered review process for content, combining machine and human evaluations to filter out harmful or low-quality videos [19][24]. Group 4: User Behavior and Platform Adaptation - Douyin's governance measures are influenced by user behavior, with the platform adapting to user habits and preferences, such as the use of alternative terms to avoid perceived censorship [24][25]. - The platform has established a dedicated team to identify and counteract rumors, utilizing a "rumor database" to train machine learning models for better detection of false information [25][26]. Group 5: Evolving Standards and Regulatory Response - The article highlights the ongoing evolution of content platforms in response to public scrutiny and regulatory frameworks, emphasizing the need for continuous adaptation to societal expectations [28][29][30].

Core Viewpoint - The article discusses the innovative strategies and competitive advantages of Doubao, a product developed by ByteDance, in the AI assistant market, particularly focusing on its unique interaction design and technological advancements. Group 1: Product Development and Innovation - Douyin, as a latecomer in the short video market, succeeded by innovating interaction design and leveraging technology effectively, which allowed it to capture user interest and engagement [5][10][11] - The full-screen design of Douyin minimizes distractions, enhancing user experience by allowing immediate content consumption [6][7] - ByteDance's product development philosophy centers around user experience, setting OKRs that prioritize user needs and employing comprehensive technical capabilities to create distinct user experiences [15][16] Group 2: Market Position and Competitive Landscape - The AI assistant market has reached a saturation point where many companies are enhancing existing services rather than innovating, leading to a competitive stalemate [20] - ByteDance's strategy is to differentiate itself by investing in AI multimodal interaction, moving beyond traditional text-based interfaces to more intuitive voice and video interactions [21][30] Group 3: User Interaction and Accessibility - Doubao's introduction of real-time voice calling and video features aims to lower the entry barrier for users, particularly benefiting older adults who may struggle with text input [22][23][30] - The article highlights the importance of reducing user psychological barriers in AI interaction, suggesting that simplifying user engagement is more critical than merely advancing model technology [34][36]