Type
Spec
Rate
480p
per second
$0.096
720p
per second
$0.168
1080p
per second
$0.300
Image input
per image
$0.05
Grok Imagine Video 1.5 and HappyHorse 1.0 side by side: specs, capabilities, parameters, and live pricing from the EmpirioLabs catalog.
xAI 
Alibaba Cloud Video GenerationGrok Imagine Video 1.5 from xAI and HappyHorse 1.0 from Alibaba Cloud are both in the Video Generation category, available through the EmpirioLabs API.
| Spec | Grok Imagine Video 1.5 | HappyHorse 1.0 |
|---|---|---|
| Model ID | grok-imagine-video-1-5 | happyhorse-1-0 |
| Author | xAI | Alibaba Cloud |
| Released | Jun 16, 2026 | May 6, 2026 |
| Input | Text Image | Text Image Video |
| Output | Video | Video |
| Region | - | Singapore |
| Endpoints | POST /v1/videos/generations | POST /v1/videos/generations |
| Capabilities |
Live rates from the EmpirioLabs catalog for both models. Each rate card always matches what the API charges.
Request parameters each model lists on EmpirioLabs, with the allowed values or range where one applies. A dash marks a parameter the model does not list.
| Parameter | Grok Imagine Video 1.5 | HappyHorse 1.0 |
|---|---|---|
| prompt | string | string |
| mode | auto, t2v, i2v, r2v Default: auto | auto, t2v, i2v, videoedit, r2v Default: auto |
| image | string | string |
| duration | 1 to 15 Default: 10 | 3 to 15 Default: 5 |
| resolution | 480p, 720p, 1080p Default: 720p | 720p, 1080p Default: 1080p |
| aspect_ratio | 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3 | 16:9, 9:16, 1:1, 4:3, 3:4 Default: 16:9 |
| reference_images | string | - |
| video | - | string |
| seed | - | number |
| audio_setting | - | auto, origin Default: auto |
| watermark | - | boolean Default: false |
Generates video from a text prompt on its own, from a source image, or from up to seven reference images that keep characters and objects consistent across the shot.
<IMAGE_1> and <IMAGE_2> walking together through a neon-lit street at night.The mode is detected from what you send, and can be set explicitly with the mode parameter.
1080p is available for text-to-video and image-to-video. Reference-to-video supports up to 720p.
Supports prompt, mode, a source image or reference images (URL or upload), duration, resolution, and aspect ratio.
Modes (in one model)
Grok Imagine Video 1.5 runs through POST /v1/videos/generations. The request returns a job_id right away; poll GET /v1/jobs/{job_id} until the job completes and read the output URLs from the result. Both models are called through the same endpoint. Set model to grok-imagine-video-1-5 or happyhorse-1-0. Get an API key from the EmpirioLabs dashboard.
curl https://api.empiriolabs.ai/v1/videos/generations \
-H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-imagine-video-1-5",
"prompt": "Describe what you want Grok Imagine Video 1.5 to generate."
}'Prompt tests and comparison runs that cover both models.
Grok Imagine Video 1.5 is the newer release (Jun 16, 2026); HappyHorse 1.0 was released on May 6, 2026. Input types only HappyHorse 1.0 accepts: Video. Capabilities listed only for Grok Imagine Video 1.5: text to video, image to video, reference to video, video generation. The specs, rate cards, and parameters on this page come from the live EmpirioLabs catalog.
Grok Imagine Video 1.5 is the newer release (Jun 16, 2026); HappyHorse 1.0 was released on May 6, 2026.
The two models are priced on different units or tiers, so compare the live rate cards on this page. They always match what the API charges.
Yes. Both models use POST /v1/videos/generations with the same EmpirioLabs API key, so most integrations switch by changing the model value. Check the parameters table on this page first if you rely on a model-specific parameter.
Yes. Open each model in the EmpirioLabs playground and run the same prompt on both, with the parameters the API exposes.
Check out our pricing or reach out if you want your own model deployed on our stack.
