[Alibaba's HappyHorse to Open Testing on April 27] According to Golden Finance, HappyHorse-1.0 will gradually open API testing on April 27 through Alibaba Cloud's PAI platform, with the first batch of test invitations extended to enterprise-level clients. Alibaba ATH revealed that Alibaba has been deeply involved in the AI video generation field for many years. The HappyHorse project is led by the ATH Innovation Division, in collaboration with multiple teams including Alibaba Platform Technology, Tongyi Laboratory, and Taotian Technology. After the testing phase opens at the end of April, HappyHorse-1.0 will officially launch for commercial use in May.