Runway Gen-4.5刷屏发布，把重量、尘土和光影都做对了，网友：颠覆

Core Insights - Runway Gen-4.5 has been released, achieving a score of 1247 Elo in the Artificial Analysis text-to-video benchmark, surpassing all existing models and being hailed as a "disruptor" in the industry [3][14]. - The model demonstrates unprecedented physical and visual accuracy, making it increasingly difficult to distinguish between real and AI-generated content [15]. - Gen-4.5 retains the speed and efficiency of its predecessor while achieving significant improvements in video quality [24]. Group 1: Features and Capabilities - Gen-4.5 excels in understanding and executing complex sequential instructions, allowing for precise control over camera movements, scene composition, timing, and atmospheric changes within a single prompt [21][22]. - The model's video generation includes realistic weight and momentum characteristics for moving objects, with surfaces reflecting physical properties consistent with the real world [25]. - It supports various control modes, including text-to-video, image-to-video, keyframe generation, and video-to-video [39]. Group 2: Visual and Physical Realism - The model showcases high levels of physical fidelity and visual precision, with examples such as realistic skateboard effects and effective background blur [28][30]. - Complex scenes, such as reflections and dynamic environments, are rendered with minimal visible flaws, enhancing the overall realism of generated content [8][10][12]. Group 3: Pricing and Accessibility - Gen-4.5 will be available at a price similar to current subscription packages, offering enhanced features without a price increase [16]. Group 4: Limitations and Future Improvements - Despite its advancements, Gen-4.5 still faces limitations in causal reasoning and object permanence, which the development team is actively working to optimize [40][41].