Mysterious AI Video Model 'Happy Horse 1.0' Dominates Leaderboard

The new AI model from Alibaba's Future Life Lab is rumored to be coming to fal's generative media platform soon.

Apr. 14, 2026 at 5:39am by

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A highly detailed, 3D illustration of a futuristic AI video generation model, with various components and circuits illuminated by vibrant neon lights, conveying a sense of advanced technology and innovation.The glowing, high-tech visuals of the Happy Horse 1.0 AI video model reflect its cutting-edge capabilities and the excitement surrounding its potential integration with fal's generative media platform.San Francisco Today

A previously unknown AI video model called 'Happy Horse 1.0' has suddenly risen to the top of the Artificial Analysis Video Arena leaderboard, surpassing established competitors like Seedance 2.0 and Kling 3.0 in both text-to-video and image-to-video categories. The model, reportedly built by Alibaba's Future Life Lab team, is now rumored to be coming to fal's generative media platform in the near future.

Why it matters

The unexpected success of Happy Horse 1.0 has sparked intense interest in the AI research community, as it represents a potential shift in the landscape of video generation technology. If the model lives up to its performance on the leaderboard, its integration with fal's high-performance APIs could make it a game-changer for developers building with generative media.

The details

Happy Horse 1.0 is a 15-billion-parameter AI video generation model built around a unified 40-layer self-attention Transformer architecture. Unlike models that use separate pipelines for different modalities, Happy Horse puts text, image, video, and audio into the same token sequence, generating synchronized video and audio in a single forward pass. The model reportedly supports seven languages natively and claims inference speeds of approximately 38 seconds for a 1080p clip on a single NVIDIA H100 GPU.

  • On April 8, 2026, Happy Horse 1.0 suddenly appeared at the top of the Artificial Analysis Video Arena leaderboard.
  • The model's 'sudden rise and mysterious disappearance' from the leaderboard further fueled intrigue in the AI community.

The players

Happy Horse 1.0

An AI video generation model that has surpassed established competitors like Seedance 2.0 and Kling 3.0 on the Artificial Analysis Video Arena leaderboard.

Artificial Analysis

The most authoritative blind-test leaderboard for AI video generation, using an Elo rating system built on blind user preference votes.

Alibaba's Future Life Lab

The team behind the development of Happy Horse 1.0, led by Zhang Di, a former Vice President of Kuaishou and the technical lead behind Kling AI.

fal

A generative media platform known for high-performance inference APIs, which has confirmed that Happy Horse 1.0 is coming soon to its platform.

Zhang Di

The lead developer of Happy Horse 1.0, who rejoined Alibaba in November after spending five years away from the company.

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What they’re saying

“Happy Horse is rumored to be coming to fal in late April”

— Jacob Smith

What’s next

While the official fal integration for Happy Horse 1.0 is not yet live, developers can prepare by setting up a fal account and familiarizing themselves with the API pattern. fal has a track record of being first to market with major model releases, and the platform is expected to be the go-to provider for Happy Horse API access due to its speed, infrastructure, and direct partnerships with model creators.

The takeaway

The unexpected success of the mysterious Happy Horse 1.0 model has captured the attention of the AI research community, and its potential integration with fal's high-performance generative media platform could make it a game-changer for developers building with AI video technology.