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Why HappyHorse Dominates the Leaderboard
See what makes HappyHorse 1.0 the #1 ranked AI video model.
Unified Audio-Video Architecture
Unlike competing models that bolt audio on as a post-processing step, HappyHorse generates video and audio jointly within a single 40-layer Transformer — the first open-source model to achieve this.
#1 on Artificial Analysis Arena
Blind user voting on Artificial Analysis placed HappyHorse at Elo 1333–1357 for Text-to-Video and 1391–1406 for Image-to-Video, surpassing Seedance 2.0 by nearly 60 Elo points.
Blazing Fast 8-Step Inference
DMD-2 distillation eliminates Classifier-Free Guidance entirely, reducing denoising to 8 steps. Combined with FP8 quantization, single-GPU deployment is now achievable.
7-Language Native Lip-Sync
Mandarin, Cantonese, English, Japanese, Korean, German, French — all natively supported with a word error rate of 14.60%, far outperforming the 19%–40% range of other open-source alternatives.
Key Features of HappyHorse
A unified architecture that sets new standards for open-source video generation.
Unified Transformer Architecture
A 15B-parameter, 40-layer single-stream Self-Attention Transformer processes text, video, and audio tokens simultaneously in one unified sequence — no cross-attention, no modality-specific sub-networks.
Joint Audio-Video Generation
The first open-source model to achieve true end-to-end audio-video joint pre-training from scratch. Dialogue, ambient sound, and Foley effects are generated alongside video frames.
8-Step Fast Inference
DMD-2 distillation reduces denoising to just 8 steps without Classifier-Free Guidance, dramatically boosting generation speed. Further accelerated by the in-house MagiCompiler runtime.
Native 1080p / 2K Output
Generate native high-resolution video up to 2K cinema-grade quality. Built-in super-resolution module available for further upscaling.
7-Language Lip-Sync
Natively supports Mandarin, Cantonese, English, Japanese, Korean, German, and French with a word error rate of only 14.60% — far below the industry average.
Text-to-Video & Image-to-Video
A unified pipeline handles both T2V and I2V tasks under the same model. Describe a scene or upload a reference image — HappyHorse brings it to life.
Multi-Shot Narrative
Advanced motion synthesis with breakthrough multi-shot narrative capabilities. Generate videos with realistic motion, seamless transitions, and strong prompt adherence.
Fully Open Source
Base model, distilled model, super-resolution module, and inference code — all released under a commercial-friendly license. Fine-tune and deploy on your own GPU infrastructure.
Diverse Aesthetic Styles
From photorealistic to anime, cyberpunk to watercolor — HappyHorse supports a wide range of visual styles to match any creative vision.
Price per Image Generation
Choose Your Perfect Plan
Flexible plans to generate high‑quality Artworks with HappyHorse credits. Choose monthly, annual or one‑time packs—no extra charges.
Pro
Most PopularBuilt for professional creators
- 6,000 credits / year (500 / month)
- Priority generation queue
- JPG/PNG/WebP format downloads
- Batch generation feature
- Unlimited cloud storage
- Commercial Use License
- Watermark-free outputs
- Priority customer support
Billed annually ($179). Save 25% vs monthly
Basic
For light and occasional use
- 1,800 credits / year (150 / month)
- Standard generation speed
- JPG/PNG format downloads
- 30-day cloud storage
- Watermark-free outputs
- ❌ Commercial Use License
Billed annually ($89). Save 25% vs monthly
Max
For high-volume production
- 18,000 credits / year (1,500 / month)
- Faster generation speed
- Higher concurrency limits
- Advanced style templates
- Batch generation feature
- Unlimited cloud storage
- Watermark-free outputs
- Commercial Use License
Billed annually ($449). Save 25% vs monthly
Ultra
For teams and commercial workflows
- 36,000 credits / year (3,000 / month)
- Fastest generation priority
- Dedicated high-performance queue
- API & bulk export access
- Private generation history
- Team & commercial license
- Watermark-free outputs
- Priority support
Billed annually ($721). Save 30% vs monthly — Best value for teams
Creators Powered by HappyHorse
See how professionals are using HappyHorse to transform their video production workflows.
Alex Chen
Short Film Director
HappyHorse's joint audio-video generation eliminated my entire post-dubbing pipeline. I now go from script to finished clip in minutes.
Sarah Kim
Social Media Manager
We produce 20+ video ads per week with HappyHorse. The multilingual lip-sync lets us localize for 5 markets without reshooting.
Marcus Rivera
Indie Game Developer
The diverse style support — anime, cyberpunk, cinematic — means I can prototype cutscenes before committing to full art production.
Yuki Tanaka
Content Creator
HappyHorse's 8-step inference is a game changer. What used to take hours of rendering now finishes in seconds.
David Park
Startup CTO
Being fully open source with commercial rights means we can fine-tune HappyHorse for our specific use case and deploy it on our own GPUs.
Emma Laurent
Marketing Director
The quality gap between HappyHorse and competitors is obvious. Our engagement metrics jumped 40% after switching to HappyHorse-generated content.
Frequently Asked Questions
Everything you need to know about HappyHorse 1.0.
Start Creating with HappyHorse
The #1 open-source AI video model is ready for you. Generate cinema-grade video with synchronized audio — no post-production needed.