Model IDDocumentation Index
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happyhorse1.0-i2v API Usage Guide
Overview
happyhorse1.0-i2v converts images into videos with improved visual fidelity, temporal consistency, and flexible media inputs. It supports first frame, last frame, driving audio, and first clip as media references, with continuous duration from 2 to 15 seconds. Requests are submitted to the request-queue API and results are retrieved via polling.Authentication
All API requests require authentication using an API key. Include your API key in the Authorization header:Submit Video Generation Request
Base URL
Endpoint
Request Format
Request Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| prompt | string | No | Text prompt guiding motion/styling |
| negative_prompt | string | No | What to avoid in the video |
| first_frame | image URL | No | Starting frame |
| last_frame | image URL | No | Ending frame |
| resolution | enum | No | 720P or 1080P |
| duration | int | No | 2–15 seconds |
| seed | int | No | Reproducibility seed |