HappyHorse 1.1 AI Video Generator
Generate cinematic video up to 1080p and 15 seconds with HappyHorse 1.1 — the upgraded release of the open-source HappyHorse video model. Drive it with a text prompt or up to 9 reference images, choose from a wider set of aspect ratios, and render every shot in one click on HeyMarmot.
Optional: add up to 9 reference images to guide characters, style and composition.
See HappyHorse 1.1 in motion
Real HeyMarmot creations: a prompt plus reference images become consistent, high-quality HappyHorse 1.1 video.
Prompt
分镜 1：动力重组：车尾裂变 (0-4s) 动作： Close-up tracking shot. A dusty muscle car accelerates. Suddenly, the rear chassis violently splits, expanding into gigantic hydraulic mechanical legs. The rear tires reconfigure into jagged metal heels. These legs slam onto the bridge deck, crushing the asphalt with a massive sense of weight. Blue sparks and white smoke erupt from the friction. High-frequency vibration, 8K photorealistic. 分镜 2：躯干扩张：钢铁脊梁 (4-8s) 动作：The transformation ripples forward. The car’s roof and hood fold and stack into a massive mechanical torso and armored shoulders. The interior of the car deconstructs, exposing a glowing power core. The titan stands nearly 15 meters tall, its metal spine extending and locking with a loud mechanical clank. Handheld shaky cam, low angle looking up at the growing giant. 分镜 3：正面武装：胸口炮仓 (8-12s) 动作：Extreme close-up on the chest armor plates. The heavy plating slides open in a complex clockwork sequence, revealing a colossal kinetic energy cannon nestled in the torso. Blue plasma arcs dance around the rifled barrel. The surrounding air begins to shimmer from intense thermal energy. The camera captures the intricate clicking of locking mechanisms. 分镜 4：终极裁决：毁灭一击 (12-15s) 动作：The cannon fires a devastating, blinding cyan energy beam directly from the chest. The massive recoil forces the titan to dig its metal claws into the bridge. The beam pierces through abandoned vehicles, causing them to melt and explode instantly. A shockwave ripples through the air, shattering remaining glass. Epic cinematic wide shot, masterwork, apocalyptic aesthetic.
HappyHorse 1.1 vs other top AI video models
Switch between HappyHorse 1.1, HappyHorse 1.0, Seedance 2.0, Veo 3.1, Sora 2, Kling 3.0 and more in one workspace — pick the right engine for every shot.
Sharper, more controllable open-source video
Text-to-video and multi-image reference, richer aspect ratios and output up to native 1080p — HappyHorse 1.1 refines the open-source HappyHorse model for more consistent characters and tighter prompt control.
Three steps to a HappyHorse 1.1 video
From prompt to final cut, HappyHorse 1.1 is just three steps away.
Describe & add references
Write your prompt, then optionally drop in up to 9 reference images.
Pick HappyHorse 1.1 & settings
Select HappyHorse 1.1, then tune resolution, duration and aspect ratio.
Generate and iterate
Preview the result, download, or refine the prompt and rerun in the same thread.
HappyHorse 1.1 and other supported video models
Toggle HappyHorse 1.1, Seedance 2.0, Veo 3.1, Kling 3.0 and more without leaving HeyMarmot — pick the best engine for each shot.
HappyHorse 1.1
Supported in the HeyMarmot video workspace.
HappyHorse 1.0
Supported in the HeyMarmot video workspace.
Seedance 2.0
Supported in the HeyMarmot video workspace.
Veo 3.1
Supported in the HeyMarmot video workspace.
Sora 2
Supported in the HeyMarmot video workspace.
Kling 3.0
Supported in the HeyMarmot video workspace.
Wan AI
Supported in the HeyMarmot video workspace.
HappyHorse 1.1 video use cases
Turn prompts and reference images into scroll-stopping motion content for social, ecommerce, storytelling and paid ads.
Social & short-form video
Spin prompts and photos into vertical Reels, TikTok and Shorts with HappyHorse 1.1.
Product & ad creatives
Animate product shots and brand assets into push-ins, parallax and ambient motion for launches and ads.
Storyboard to motion
Turn concept art, keyframes and reference images into previs and pitch videos.
Reference-driven consistency
Feed up to 9 reference images to keep characters and style consistent across every variant.
A studio built for HappyHorse video
HeyMarmot unifies reference images, model controls, aspect ratios and history so iterating stays fluid.
Prompt + image references
Combine text with up to 9 reference images so HappyHorse 1.1 follows your exact intent.
Consistent characters
Reference images keep faces, outfits and style stable across the whole shot.
Swap models freely
Jump between HappyHorse 1.1 and Seedance, Veo, Sora, Kling — all in one workspace.
Reusable asset library
Save inputs and outputs to remix later without re-uploading.
Rich aspect ratios
Render 16:9, 9:16, 1:1, 4:3, 21:9 and more from the same prompt.
Conversation history
Prompts, references and outputs all live in one creative thread.
HappyHorse 1.1 FAQ
Answers for creators generating open-source AI video with HappyHorse 1.1.
What is HappyHorse 1.1?
HappyHorse 1.1 is the upgraded release of the open-source HappyHorse video model. It improves prompt control and character consistency while supporting text-to-video, multi-image reference and output up to native 1080p.
How is HappyHorse 1.1 different from 1.0?
Version 1.1 adds a wider set of aspect ratios, supports up to 9 reference images for tighter control, and keeps output up to 1080p with more consistent results — while running independently from the 1.0 model.
What inputs does HappyHorse 1.1 support?
A text prompt, plus optional references: up to 9 images used as multimodal guidance for characters, style and composition.
What resolution and duration does HappyHorse 1.1 support?
720p and 1080p output, with durations from 3 to 15 seconds and aspect ratios including 16:9, 9:16, 1:1, 4:3, 3:4, 21:9 and more.
Can I compare HappyHorse 1.1 with other models?
Yes. HeyMarmot lets you swap HappyHorse 1.1 with Seedance 2.0, Veo 3.1, Sora 2, Kling 3.0 and more in one workspace.
Is there a free HappyHorse 1.1 trial?
Yes. New HeyMarmot accounts include starter credits so you can try HappyHorse 1.1 before upgrading.
Explore more AI video resources
See video inspirations, check pricing, or read AI video prompting guides.