UlazAI - KI-Bild- & Video-Tools

New video model in UlazAI

HappyHorse-1.1 API and video generator

Create short AI videos from a prompt, image reference, reference set, or source video. HappyHorse-1.1 supports 3-15 second clips in 720p and 1080p, directly inside Video Studio.

Duration
3-15s
Resolution
720p / 1080p
From
33 cr/s
Reference-to-video sample
Physics detail
Product polish
Scene realism

Prompt used

Use the reference person as the hero of a cinematic creator-studio promo: they step into soft window light, camera pushes in, subtle hand motion, polished UGC commercial look, no text, no logos.

Marketing proof reel

Explanation, examples, and benefits in one launch video

Use this video as the fast route check: it shows which input you need, what real outputs look like, and why these routes are worth testing in Video Studio.

Explanation Choose text-to-video, image-to-video, reference-to-video, or video edit from your source material.

Example Watch real generated clips before spending credits.

Benefits Prompts, pricing, and the next step sit together in one workflow.

Four routes for short AI video

Choose the model based on your input. Start from text, animate a still, guide the style with references, or edit an existing clip.

Text to Video

happyhorse_t2v

Model: happyhorse-1-1/text-to-video

Prompt only. Use this when the idea starts as a written scene.

Open this route

Image to Video

happyhorse_i2v

Model: happyhorse-1-1/image-to-video

Requires one or two image URLs for reference-led motion.

Open this route

Reference to Video

happyhorse_r2v

Model: happyhorse-1-1/reference-to-video

Requires image references when identity, style, or composition consistency matters.

Open this route

Video Edit

happyhorse_videoedit

Model: happyhorse/video-edit

Requires a source video URL for prompt-based editing.

Open this route

Clear per-second pricing

HappyHorse is billed linearly by duration and resolution, so you can estimate the cost of 3, 5, 10, or 15 second clips before generating.

720p: 33 credits per second

1080p: 44 credits per second

Duration 720p 1080p
3s 99 credits 132 credits
5s 165 credits 220 credits
10s 330 credits 440 credits
15s 495 credits 660 credits

Where HappyHorse fits best

Prompt to scene

Quickly test ad concepts, social clips, explainers, and visual ideas without creating a source image first.

Still to motion

Animate product shots, character sheets, and key visuals while keeping the source image recognizable.

Refine existing clips

Use video edit when you already have a clip and want to adjust motion, atmosphere, or visual details with a prompt.

Production workflow

  1. 1. Write your scene or start from a Story Builder prompt.
  2. 2. Choose text-to-video, image-to-video, reference-to-video, or video edit.
  3. 3. Select 720p or 1080p and a duration between 3 and 15 seconds.
  4. 4. Generate, compare variations, and download the best result.

Developer integration

Use the same Video Studio route for product interfaces and workflow automation. The model slug selects the HappyHorse route.

POST /api/v1/video-studio/generate/

{
  "model_slug": "happyhorse_t2v",
  "prompt": "A miniature city built from cardboard comes alive at night",
  "duration": 5,
  "quality": "1080p",
  "aspect_ratio": "16:9"
}

GET /api/v1/video-studio/status/{job_id}/

Frequently asked questions

Which HappyHorse routes does UlazAI support?

UlazAI supports text-to-video, image-to-video, reference-to-video, and video edit through separate model slugs in Video Studio.

What is the maximum length?

HappyHorse clips run from 3 to 15 seconds. For longer productions, create multiple shots or choose another video model with longer duration support.

Does the UlazAI route support audio?

The current HappyHorse routes in UlazAI focus on video output. Use models with native audio support when generated sound or spoken dialogue is required.

Start with HappyHorse-1.1 in UlazAI

Open Video Studio, choose the HappyHorse route, and create a short test video with predictable credits.