New releaseHappyHorse 1.0 is now available. Try it now →
HappyHorse 1.0 is an open-source AI video generation model with 15 billion parameters, designed to turn text prompts or still images into high-resolution video clips in roughly 38 seconds — with motion accuracy and prompt fidelity that independent benchmarks currently rank above every closed-source alternative.
Text or image to video in the browser. Set resolution and duration, then preview on the right.
HappyHorse 1.0 — also written HappyHorse-1.0 — is the first major release of the HappyHorse open-source AI video model. It uses a 15-billion-parameter architecture optimized for temporal coherence, smooth motion rendering, and accurate prompt-to-video translation, and it ships with a commercial usage license that covers monetization and client work.
The model appeared on the Artificial Analysis video leaderboard in early April 2026 and quickly drew attention for outperforming closed-source models that cost significantly more to access. HappyHorse-1.0 runs through a browser-based interface — no local GPU, no terminal, no model weight download required.
15B
Parameters
HappyHorse-1.0 runs on a 15-billion-parameter transformer-based architecture. That's the same parameter scale as leading proprietary video models — the difference is the weights and training methodology are publicly documented.
1080p
Output Resolution
Clips generate at full 1080p resolution across all access tiers. Output files are standard-format video ready for editing software, ad platforms, and direct social upload without transcoding.
~10s
Generation Time
Most prompts return a finished clip in around 10 seconds on the managed platform. That's fast enough to iterate inside a single creative session rather than batching requests overnight.
OSS
Open Source
The HappyHorse-1.0 model architecture and benchmark results are publicly available. Developers can review the technical spec, run evaluations, and build on the model without access agreements.
Two input modes, one consistent output standard — and a commercial license that makes every clip immediately usable.
From Written Prompt to Finished Clip
Write a scene description in plain English and HappyHorse 1.0 renders it as video. The model interprets natural language well enough to handle specific camera directions, lighting conditions, and subject behavior — not just generic "a dog running in a field" outputs. For content teams, that level of prompt responsiveness means fewer regeneration cycles and more predictable results per credit spent.
Animate Any Still With a Text Directive
Upload a source image and layer a text prompt on top. HappyHorse-1.0 uses the still as a visual anchor and animates outward from it, preserving color accuracy and subject identity across frames. Product teams use this to turn catalog photography into motion content without reshooting or outsourcing to motion designers.
Every Clip Covers Paid Work and Client Delivery
HappyHorse 1.0's open-source license extends to generated output. Videos you create are yours to publish, monetize, license, and run as ad creative — no royalty structure, no usage windows, no per-platform restrictions. That's a meaningful difference from tools that charge separately for commercial rights or restrict monetization to personal use tiers.
No Local Setup, No Hardware Requirements
The managed platform for HappyHorse 1.0 runs entirely in the browser. You don't need a GPU workstation, a Python environment, or a CUDA-compatible machine. If you can open a tab, you can generate video — which matters for teams working across mixed hardware or on company-managed machines without admin access.
For Developers and Researchers
HappyHorse-1.0's 15B-parameter architecture is publicly documented. Developers can review the model spec, run independent benchmarks, and integrate via API rather than relying on self-reported performance claims. The open foundation also means the community can flag regressions and contribute to improvement cycles — faster than closed-source iteration.
Direct model output. No post-processing applied. What you see is what the generator produces.
Text → cinematic urban scene · ~9s · 1080p
Product still → animated clip · color-accurate output
12-word prompt → landscape · commercial license included
Brand asset → motion clip · no post-production
The model is general-purpose, but these are the workflows it handles best.
Performance marketers use HappyHorse 1.0 to generate video ad variants from a product brief or single image, then push them directly to paid channels. Because output is commercially licensed, there's no legal review step between generation and launch — the turnaround from brief to live ad can be measured in minutes, not weeks.
Creators use HappyHorse-1.0 to fill B-roll gaps, generate intro sequences, and build visual transitions without stock footage subscriptions. The ~10s generation time is fast enough to test multiple visual directions inside a single editing session before committing to one.
Upload a product photograph and HappyHorse 1.0 animates it into a motion clip suitable for storefront headers, social ads, and email. The image-to-video pipeline holds product color and detail across frames — important for categories like fashion and beauty where visual accuracy is a purchase signal.
Video producers and agency creative teams use HappyHorse-1.0 to mock up motion directions before committing to production budgets. A text prompt can stand in for a storyboard in a client presentation, and because output is commercially licensed, approved concepts go straight to campaign use.
Developers and ML researchers use HappyHorse-1.0 as a documented 15B-parameter baseline for comparative testing against closed-source models. The public architecture spec makes it one of the few video models where benchmark conditions can be independently reproduced and verified.
These rankings are from Artificial Analysis, an independent AI evaluation platform. We're linking directly to their leaderboard so you can verify the numbers yourself.
| Rank | Model | Source Type | Commercial License |
|---|---|---|---|
| 1 | HappyHorse-1.0 | Open-source | Included |
| 2 | Seedance 2.0 | Closed-source | Restricted |
| 3 | Kling | Closed-source | Restricted |
Source: Artificial Analysis AI Video Leaderboard · Rankings reflect published evaluations as of April 2026 and are updated as new data is released.
Three steps. Runs in browser. First result in about 10 seconds.
Describe what you want in plain English — include camera angle, subject, and lighting if you want more control over the output. Or upload a still image to use as the visual starting point. HappyHorse 1.0 accepts both inputs independently or in combination.
Select your output settings — 1080p is available on all paid plans. Hit Generate. HappyHorse-1.0 processes the request server-side and returns a video preview directly in the browser in roughly 10 seconds. No page reload, no email notification, no waiting screen.
Download the finished file at full resolution. The commercial license applies automatically — publish it, run it as ad creative, deliver it to a client, or monetize it on any platform. No additional sign-off, no usage declaration required.
All plans include 480p and 720p video output and commercial usage rights. No hidden per-video fees.
$9.9/mo
Perfect for beginners to explore AI video generation with HappyHorse.
$29.9/mo
Ideal for creators who need more capacity and better value.
$49.9/mo
Best for production teams requiring high-volume video generation.
$99.9/mo
Maximum value for studios and businesses with large-scale needs.
Prices include all taxes. Cancel anytime.
HappyHorse 1.0 is an open-source AI video generation model with 15 billion parameters. It converts text prompts or still images into 1080p video clips in roughly 10 seconds, with a commercial license built into the output. It's accessible through a browser-based platform — no software install or local GPU required.
HappyHorse-1.0 is open-source with a commercial license; Seedance 2.0 is closed-source with more restricted access and usage terms. On the Artificial Analysis video leaderboard, HappyHorse-1.0 currently ranks above Seedance 2.0 on motion quality and prompt adherence. Browser access is also more direct with HappyHorse — no platform registration gatekeeping.
HappyHorse-1.0 is a 15-billion-parameter model. That puts it at the same scale as leading closed-source video generation models, with the difference that the architecture is publicly documented and available for independent evaluation.
Yes. Every video generated through the HappyHorse 1.0 platform includes a commercial usage license. You can publish, sell, license to clients, or run the output as paid advertising without additional agreements, attribution requirements, or royalty fees.
Yes. HappyHorse-1.0 is open source with a publicly documented 15B-parameter architecture. Developers and researchers can review the model spec, run independent benchmarks, and build on the model. The web platform provides managed access with infrastructure, queuing, and licensing handled server-side.
Yes. Upload any still image as a source frame and HappyHorse-1.0 will animate it based on your text prompt. The model preserves subject identity and color accuracy across frames — useful for product photography, brand assets, and custom illustrations.
HappyHorse-1.0 generates at 1080p resolution on all paid plans. Output files use standard video formats compatible with major editing tools, ad platforms, and social media upload specs without requiring transcoding.
The closest alternatives are Seedance 2.0 and Kling — both closed-source models with more restricted commercial licensing. Runway Gen-3 and Sora (OpenAI) are also widely used but priced higher and don't include a commercial license by default. For open-source specifically, HappyHorse-1.0 is currently the only top-ranked option with a commercial-use-included license.
API access is available on Pro and Business plans. It lets developers integrate HappyHorse-1.0 generation directly into their own tools, pipelines, or applications without routing through the web interface.
Open-source. 1080p output. Commercial license on every plan. Runs in browser. Your first clip takes about 10 seconds.
Try HappyHorse 1.0