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Happy Horse 1.1 Reference to Video

All image to video models

Happy Horse 1.1 is Alibaba's #1-ranked video model. This reference-to-video endpoint turns up to 9 reference images into 1080p video with synchronized native audio and multilingual lip-sync for consistent characters.

Inference$ Commercial useFrom 32 credits per run

About Happy Horse 1.1 Reference to Video

Happy Horse 1.1 is Alibaba's #1-ranked video model. This reference-to-video endpoint turns up to 9 reference images into 1080p video with synchronized native audio and multilingual lip-sync for consistent characters.

happy-horsevideoreference

Pricing

A run with the default settings costs 32 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

prompttextarearequired

Text prompt describing the desired video. Reference subjects from your images using ``character1``, ``character2``, ... up to ``character9`` (the order matches the order of ``image_urls``). Max 2500 characters.

image_urlsfile-listrequired

Reference images for subject consistency (1-9 images). Formats: JPEG, JPG, PNG, WEBP. Shortest side must be at least 400 px (720P or higher recommended). Max 20 MB each.

aspect_ratioselectdefault: "16:9"

Aspect ratio of the generated video.

Options: 16:9, 9:16, 1:1, 4:3, 3:4, 21:9, 9:21, 5:4, 4:5

resolutionselectdefault: "1080p"

Output video resolution tier.

Options: 720p, 1080p

durationselectdefault: 5

Output video duration in seconds (3-15).

Options: 3, 4, 5

seedinteger

Random seed for reproducibility (0-2147483647).

enable_safety_checkerbooleandefault: true

Enable content moderation for input and output. Disabling it requires account authorization; unauthorized requests are always checked.

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