Alibaba reveals it’s behind the mysterious ‘HappyHorse’ AI video model dominating global leaderboards

A mystery that lit up the AI community this week now has a name. The high-flying video model known as HappyHorse-1.0, which quietly climbed to the top of global rankings, is part of Alibaba.

The model first appeared on the benchmarking platform Artificial Analysis around April 7 with no clear ownership. Within days, it surged to the top of blind-test rankings across both text-to-video and image-to-video categories. The sudden rise sparked a wave of speculation. Many assumed it had to be backed by a major player. Some pointed to Tencent, others to Alibaba. A few thought it might be an independent lab punching far above its weight.

The answer came quietly. A newly created X account linked the project to Alibaba’s ATH AI Innovation Unit and described HappyHorse as an in-progress effort. Alibaba later confirmed to CNBC that the post was authentic.

Mystery AI Model ‘HappyHorse’ Dominates Global Leaderboards—Now Confirmed as Alibaba Project

The reveal added fuel to an already strong market reaction. Shares of Alibaba listed in Hong Kong closed 2.12% higher on Friday. Earlier in the week, the stock had already jumped 6.75% amid broader tech momentum and growing chatter tying the company to the model.

The timing matters. Competition across China’s AI sector has intensified, with companies racing to ship models that can keep up with global leaders. Alibaba has been pushing hard in that direction, building on its Qwen large language model and expanding its presence across AI-driven products.

HappyHorse marks a notable moment for the company’s video ambitions. Alibaba has released models with video capabilities before, though none have generated this level of attention or performance so quickly. The early Global Leaderboard Rankings suggest the company may be closing ground in a space that has proven difficult even for well-funded teams.

HappyHorse’ Dominates Global Leaderboards

Recent developments across the industry show just how challenging video generation remains. OpenAI stepped back from its Sora video product, shifting focus toward coding tools, enterprise offerings, and longer-term AI goals. High computing costs played a role in that decision. Over at ByteDance, the rollout of Seedance 2.0 hit a wall after copyright disputes with major studios and streaming platforms.

That leaves an opening. If HappyHorse can sustain its early momentum, Alibaba could gain ground in a segment that is still far from settled.

At the center of it all is CEO Eddie Wu, who has made AI the top priority across the company’s sprawling operations. That push extends from software models to chips and data centers, with a clear goal: embed AI across commerce, advertising, and entertainment.

HappyHorse may be the next step in that strategy. For now, it remains under development. Yet its debut has already done something many models struggle to achieve—it captured attention, sparked debate, and forced competitors to take notice.

Happy Horse AI video generator