HiAPI
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Alibaba

HappyHorse 1.1

happyhorse-1.1/text-to-video

Alibaba video generation model; a single model covers text-to-video, image-to-video, and reference-image-to-video, supports 1080p and 3–15 second clips, and fuses multiple reference images to strengthen character consistency, making it suitable for multi-shot storytelling and e-commerce advertising assets

Try happyhorse-1.1/text-to-video

Input

Output

video
Fill in the parameters and run — results show up here.

Pricing

happyhorse-1.1/text-to-video per second

Specifications Unit Price
720P $0.160
1080P $0.210

Overview

happyhorse-1.1/text-to-video is the pure text-to-video route in Alibaba's HappyHorse 1.1 series, taking a text prompt and directly outputting a short video. Compared with the previous generation, 1.1 brings targeted improvements in prompt adherence, motion smoothness, and visual realism, and emphasizes coordinated generation of visuals and audio. It supports single-segment durations of 3–15 seconds, two resolution tiers (720p and 1080p), and nine aspect ratios ranging from portrait to widescreen. It is suited for developers who need to quickly produce storyboard clips, advertising assets, and social media shorts, billed by output seconds through the unified HiAPI.ai interface.

Key Highlights

  • Text-to-video covering continuous durations of 3–15 seconds — A single segment can be set from 3 to 15 seconds, billed by actual output seconds, so clip length can be flexibly set according to shot needs.
  • Nine aspect ratios that directly fit publishing platforms — Supports 16:9, 9:16, 1:1, 21:9, and other ratios, so the same prompt can produce output for different channels, reducing secondary cropping.
  • Two resolution tiers: 720p and 1080p — 1080p is the default, and the tier can be switched based on preview or final-cut needs, using resolution to balance generation cost and image quality.
  • Targeted improvements in prompt adherence and visual realism — According to provider and third-party descriptions, 1.1 improves prompt understanding, motion smoothness, and temporal consistency over 1.0.

Capabilities

Pure text-driven generation: A prompt of no more than 4,999 characters is all that is needed to generate a video, with no first frame or reference material required, making it suitable for building visuals from scratch.

Controllable duration and resolution: Single-segment duration can be specified between 3 and 15 seconds, and resolution can be set to 720p or 1080p, trading off generation speed against image quality as needed.

Multi-aspect-ratio output: Nine preset aspect ratios cover portrait short videos, square feeds, and widescreen presentation, making it easy to generate multi-platform versions in one pass.

Optimized motion and temporal performance: 1.1 emphasizes smooth motion and inter-frame temporal consistency, so visual transitions are more stable when multiple generated segments are stitched into a continuous narrative.

Use Cases

  • Short drama and multi-shot creators: text storyboards — Turn storyboard descriptions directly into single-shot clips as first-pass material for short dramas or narrative content, then move into editing.
  • E-commerce and advertising teams: product selling-point copy — Generate short video assets from selling-point descriptions for product display pages, feed advertising, and promotional content production.
  • Brand marketers: creative concept descriptions — Quickly produce brand concept shorts in multiple ratios for proposal decks and pre-campaign creative validation.
  • Social media operators: short copy and topics — Generate portrait or square shorts that directly match the publishing specs of short video platforms and social feeds.

Limitations and Selection Advice

The maximum single-segment duration is 15 seconds and the maximum resolution is 1080p, so long videos must be generated in segments and then stitched together, and it is not intended for high-resolution film-grade output. This route accepts only text input; if you need to maintain character and subject consistency with a first frame or multiple reference images, choose the image-to-video or reference-image-to-video route in the same series. In addition, the improvements of 1.1 over 1.0 are mostly descriptive claims and lack public quantitative benchmarks, so it is advisable to validate style and motion performance with short sample clips before batch generation.

Frequently asked questions

View all FAQs →
  • Does HappyHorse 1.1 Reference to Video require an input image?

    Yes. happyhorse-1.1/reference-to-video is a reference-to-video route. Reference images constrain subjects, style, and scene details while the prompt directs motion, camera, and environmental change.

  • Which durations and resolutions does HappyHorse 1.1 Reference to Video support?

    The current HiAPI contract supports 3–15s at 720p or 1080p. Check the page controls and API docs for the current options.

  • How is HappyHorse 1.1 Reference to Video billed?

    Billing follows output duration and the selected tier. The page follows the global display unit, while the successful task record contains the final charge.

  • How can I improve subject consistency?

    Use a clear, unobstructed source with a complete composition. Describe the main action and camera first, then name the appearance, material, and background relationships that must remain stable. Validate a short clip first.

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