Since its official release for paid users by OpenAI on December 12, 2024, Sora has been online for over a hundred days. Initially, Sora stirred up significant buzz in the global tech competition and triggered extensive exploration within the business community. However, its final impact has fallen short of the massive disruption we anticipated. After this period, as we revisit the AI video generation field, we find that the landscape has indeed transformed, albeit subtly. The initial hype and speculation surrounding Sora were intense. It was expected to bring revolutionary advancements and spark an unprecedented wave of innovation. Indeed, Sora's capabilities in AI video generation have deepened and expanded, yet they haven't quite lived up to the grand predictions. Instead, the technology has evolved in ways that highlight its potential but also reveal the ongoing challenges and complexities of the field. One notable change is the rapid advancement in technology. New models and algorithms have emerged, pushing the boundaries of what AI can achieve in video generation. These innovations have not only improved the quality of generated content but have also made the process more efficient and accessible. Companies and researchers have been actively competing to develop and refine their own AI solutions, leading to a flurry of activity and continuous improvements. Another significant development has been the shift in industry dynamics. The introduction of Sora has prompted existing players to reassess their strategies and invest more heavily in AI research. Startups have emerged to capitalize on the opportunities, while established tech giants have intensified their efforts to stay ahead. This competitive environment has fostered collaboration and innovation, driving the entire sector forward. Despite these changes, some fundamental issues remain unresolved. Ethical concerns around the generation and use of AI-generated content continue to be a major topic of debate. Issues such as deepfakes, privacy, and the potential for misuse are still being addressed. Regulatory bodies and tech companies are working together to establish guidelines and best practices, but the path forward is fraught with challenges. Moreover, the practical applications of AI video generation are still finding their footing. While there are promising uses in areas like entertainment, education, and marketing, the technology's adoption has been gradual. Businesses and consumers are cautiously exploring the potential benefits, balancing them against the risks and uncertainties. In conclusion, Sora's launch has catalyzed significant developments in the AI video generation field. The technology has matured, and the industry has become more robust and dynamic. However, the full extent of its impact remains to be seen as the sector continues to grapple with ethical, regulatory, and practical challenges. As we move forward, it will be important to monitor these developments and adapt to the evolving landscape.