Gen AI is revolutionizing the insurance industry by enhancing efficiency and customer experiences. With global spending on Gen AI projected to reach $143 billion by 2027, leading Japanese insurers like Mitsui Sumitomo, Meiji Yasuda, Sumitomo Life, and Dai-ichi Life are integrating this technology to streamline operations and boost productivity. Despite being in its early stages, Japan's Gen AI adoption shows promise, requiring a long-term approach to address bias, privacy, and governance. The future holds significant innovations, driving growth and efficiency through human-AI collaboration.