HappyHorse 1.0 Video Edit: AI動画編集

Happy Horse 1.0 Video Edit modifies a video via natural-language instruction, with selectable 720p/1080p output resolution. Happy Horse 1.0 Video Edit - modify an input video using a natural-language instruction with optional reference images. Selectable output resolution (720p/1080p) - price scales with the resolution chosen.

Interactive model controls

Happy Horse 1.0 Video Edit - modify an input video using a natural-language instruction with optional reference images. Selectable output resolution (720p/1080p) - price scales with the resolution chosen.

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概要

このモデルについて

更新日: 2026年9月11日

Happy Horse 1.0 Video Edit modifies an existing video using a natural-language instruction, with optional reference images to guide the edit, at your choice of 720p or 1080p output resolution. Describe the change you want (swap a subject, restyle the environment, adjust an object) and the model applies it while preserving the original motion and camera work.

A single resolution parameter lets you draft cheaply at 720p and switch to 1080p for final output on the same endpoint.

1Subject replacement: swap a person, animal, or object in an existing video for something else

2Environment restyling: change the setting/background of a video while preserving action and camera motion

3Style transfer edits: apply an artistic or thematic restyle to existing footage

4Asset localization: swap in branded assets/products into existing video content

5Creative remixing: reimagine existing footage with new visual elements guided by reference images

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料金と価値

コスト分析

プロバイダー	費用	備考
muapiapp	$0.21–$0.42/秒 of 入力動画 (720p–1080p)	Simple per-second, resolution-scaled 料金 with サブスクリプション不要s. Pick 720p for cost-effective drafts or 1080p for premium output, on the same endpoint.

muapiapp$0.21–$0.42/秒 of 入力動画 (720p–1080p)

Simple per-second, resolution-scaled 料金 with サブスクリプション不要s. Pick 720p for cost-effective drafts or 1080p for premium output, on the same endpoint.

** 競合サービスの料金は類似のモデル構成および利用ティアに基づいて算出された推定値です。

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技術詳細

設定スキーマ

パラメータ	型	説明	デフォルト
プロンプト	string	生成プロセスを適切に制御するためのパラメータ設定（Edit instruction describing the change to apply to）。	`Replace the horse with @image1 and transform the kitchen environment to match @image2 while preserving the original running path and camera movement. Add larger fire bursts, exploding soup pots, flying vegetables, steam clouds, and frantic comedic reactions from the raccoon chef.`
解像度	Enum（2個の選択肢）	Output resolution. Price scales with resolution: 720p is cheaper, 1080p is more expensive.	`720p`
動画 URL	string	出力動画のフレームレート（秒あたりのフレーム数）。	`https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-reference-to-video-1080p.mp4`
Reference 画像s	array	Optional 0-5 reference image URLs to guide the edit.	`https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-video-edit-720p-1.jpg`
音声 Setting	Enum（2個の選択肢）	生成プロセスを適切に制御するためのパラメータ設定（Audio strategy: 'auto' lets the model decide, 'ori）。	`auto`
シード値	int	生成の再現性を保つためのランダムシード値。同じ値を使用すると同じ結果が得られます。	`0`

プロンプトstring

生成プロセスを適切に制御するためのパラメータ設定（Edit instruction describing the change to apply to）。

デフォルト値

Replace the horse with @image1 and transform the kitchen environment to match @image2 while preserving the original running path and camera movement. Add larger fire bursts, exploding soup pots, flying vegetables, steam clouds, and frantic comedic reactions from the raccoon chef.

解像度Enum（2個の選択肢）

Output resolution. Price scales with resolution: 720p is cheaper, 1080p is more expensive.

デフォルト値720p

動画 URLstring

出力動画のフレームレート（秒あたりのフレーム数）。

デフォルト値https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-reference-to-video-1080p.mp4

Reference 画像sarray

Optional 0-5 reference image URLs to guide the edit.

デフォルト値https://d3adwkbyhxyrtq.cloudfront.net/webassets/videomodels/happy-horse-1-video-edit-720p-1.jpg

音声 SettingEnum（2個の選択肢）

生成プロセスを適切に制御するためのパラメータ設定（Audio strategy: 'auto' lets the model decide, 'ori）。

デフォルト値auto

シード値int

生成の再現性を保つためのランダムシード値。同じ値を使用すると同じ結果が得られます。

デフォルト値0

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実装ガイド

開発者ドキュメント

Provide the source video_url (MP4/MOV, 3-60s, ≤100MB, longer side ≤2160px, shorter side ≥320px, >8fps).
Write a prompt describing the edit instruction.
Optionally add 0-5 reference images in images_list to guide the edit.
Set resolution to "720p" (cheaper, default) or "1080p" (premium output).
Choose audio_setting ("auto" or "origin") and an optional seed.
Submit your request—the model applies the edit at the selected resolution.

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よくある質問

FAQ

What is the cost of Happy Horse 1.0 Video Edit?

Happy Horse 1.0 Video Edit costs $0.21/sec of input video at 720p (default) or $0.42/sec at 1080p on muapi. A 10-second source video costs $2.10 at 720p or $4.20 at 1080p.

How do I choose the resolution?

Pass `resolution: "720p"` (default) or `resolution: "1080p"` in your request body — both are served by the same endpoint.

What video formats are supported?

MP4 or MOV (H.264 recommended), 3-60 seconds, up to 100MB, longer side up to 2160px, shorter side at least 320px, frame rate above 8fps.

What does audio_setting control?

"auto" lets the model decide how to handle audio for the edit; "origin" preserves the source video's original audio track.

What happened to the dedicated 720p/1080p endpoints?

They still work exactly as before, unchanged, for existing integrations. This unified endpoint is the new recommended way to access both resolutions through one integration.