Recently, the generative AI startup Runway officially launched its latest video generation model — Gen-4.5. This model has made significant improvements in visual accuracy and creative control compared to previous versions, aiming to provide users with a higher quality HD video generation experience. Users only need to input a short text prompt to generate dynamic videos that meet their needs, covering complex scenes and vivid characters.

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Gen-4.5 is pre-trained, fine-tuned, and inferred using Nvidia GPUs, achieving new heights in video generation accuracy and style control. According to market analyst Arun Chandrasekaran, although Runway continues to make progress in video generation, it faces challenges from competitors such as OpenAI's Sora and Google's Veo 3.1.

Notably, Gen-4.5 is primarily aimed at creating short videos for social media, suitable for platforms like Instagram, while Google's Veo focuses more on producing product marketing videos that last several minutes. Despite different market demands, Runway's Gen-4.5 has made significant improvements in the consistency of objects and characters, especially in recreating complex video scenes.

However, as the realism of generated models continues to improve, distinguishing between fake and real content has become more difficult. In this situation, there are differences of opinion within the industry about whether AI-generated content should be labeled. William McKeon-White, an analyst at Forrester, suggests adding a disclaimer at the end of the video to indicate that the content uses AI technology, a view that has different opinions among game companies.

In addition, the Runway Gen-4.5 model also reveals some limitations. For example, it performs poorly in causal reasoning, sometimes showing effects before causes or issues with temporal coherence of objects. Despite this, Runway continues to make efforts to improve memory and object interaction, expecting to launch more persistent and consistent visual effects in the future.

Key Points:

- 🎥 The Runway Gen-4.5 model makes video generation more creative and visually consistent.

- 📱 The model is mainly aimed at short videos for social media, with a different strategy from competitors targeting long videos.

- ⚖️ The authenticity of AI-generated content has sparked discussions within the industry, with suggestions to add disclaimers to distinguish real from fake content.