HappyHorse-1.0 is crowned #1 open source AI video generator and tops the global artificial analytics leaderboard
The mysterious dark horse that hit the video arena is now completely open source and live. Instantly generate 1080p videos with native audio and lipsync with happy-horse.art.
“HappyHorse-1.0 proves that open source can lead the frontier, not just follow.”
Los Angeles, CA, April 10, 2026 /24/7 Press Release/ — Just 48 hours ago, an unknown model called Happy Horse 1.0 quietly took the number one spot in the Artificial Analysis video arena. It is currently completely open source and available to everyone.
In the latest snapshot of Artificial Analysis Video Arena, the industry’s most trusted blind user voting leaderboard, HappyHorse-1.0 ranks #1 in both Text-to-Video (no audio) and Image-to-Video (no audio), beating out Seedance 2.0, Kling 3.0, and Sora 2 Pro in a direct blind comparison.
According to the public rankings, HappyHorse-1.0 scores Elo ~1383 in text-to-video conversion (no audio) and has an even stronger lead in image-to-video conversion. It ranks almost second among tracks with audio. All results are based on blind voting from thousands of real users.
What is the difference between HappyHorse-1.0?
15B Parameter Integrated 40 Layer Self-Attention Transformer, “Sandwich” Design
Native integrated audio-video synthesis in a single forward pass
Ultra-low WER lipsync in 7 languages (English, Chinese, Cantonese, Japanese, Korean, German, French)
DMD-2 distillation → only 8 denoising steps (no CFG required)
Blazingly fast inference: up to 38 seconds at 1080p on a single H100
Try it now – it’s completely free to get started
The complete model is available at https://happy-horse.art/generator.
No credit card required for trial credits. Supports Text-to-Video, Image-to-Video, native audio, and multiple aspect ratios.
The complete open source package (weights + inference code + commercial use rights) is available from the official website. Developers can self-host on a single H100.
The post-Sola era has further accelerated.
While everyone is debating who built the mysterious model, Happy Horse 1.0 is already paying off. The #1 ranked open source video generator is here, working today and available for everyone to use.
Model information/live official: https://happy-horse.art/
Complete Leaderboard: Artificial Analytics Video Arena
Happy Horse AI is an independent open source AI video platform dedicated to providing instant access to the world’s best video generation models. We offer a complete open source weight with live web demos, API access, and commercial rights. It is not affiliated with the Closed Source Institute in any way.
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