What is HappyHourse?

Happy Horse is an open-source AI video model and generator for text-to-video and image-to-video production.The 15B-parameter unified transformer natively processes text, image, video, and audio tokens for joint audio-video synthesis.

It produces production-ready clips (typical duration ~38 seconds) with resolutions up to 1080p and 4K, and supports 9.16 and 16.9 aspect ratios and reference-image uploads.DMD-2 distillation reduces denoising to eight steps and Magicompiler acceleration improves generation speed.

Native lip-sync support includes English, Mandarin, Cantonese, Japanese, Korean, German, and French with low word-error-rate (WER) alignment.Workflows cover prompt-based generation, reference-first image-to-video, and synchronized audio for storyboard drafts, concept testing, and prototype visuals.

Open-source access, benchmark results, and prompt guidelines (describe subject, motion, framing, pacing, and audio intent) help creators, researchers, and production teams evaluate outputs and iterate faster.

HappyHourse pricing Subscription

Basic annual $118.8/year

Standard annual $238.8/year

Pro annual $598.8/year

Verify on the official pricing page.

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HappyHourse's key features

Open-source text-to-video and image-to-video AI video model and generator
15B-parameter unified transformer that natively processes text, image, video, and audio tokens for joint audio-video synthesis
Supports generation up to 1080p and 4K, 9:16 and 16:9 aspect ratios, and reference-image uploads
DMD-2 distillation reducing denoising to eight steps and Magicompiler acceleration to speed up generation
Native lip-sync for English, Mandarin, Cantonese, Japanese, Korean, German, and French with low word-error-rate alignment

HappyHourse use cases

Create localized, production-ready 4K promotional videos up to ~38s from simple scripts using Happy Horse, leveraging multilingual lip-sync, joint audio-video synthesis, and reference-image support to match brand visuals and produce ready-to-run ads without on-set shooting
Turn character art or headshots into animated short clips using Happy Horse's image-to-video and reference-driven generation to produce consistent 4K performances with accurate multi-language lip-sync, synchronized audio workflows, and accelerated denoising for rapid iteration
Generate polished previsualizations and social content for filmmakers and creators by converting scene descriptions to production-ready ~38s clips using Happy Horse, combining text-to-video, synchronized dialogue/music, accelerated video generation, and reference imagery to quickly iterate on cinematography and timing

Who is it for?

Filmmakers
Video producers
Content creators (youtubers, tiktokers, social creators)
Advertising and marketing agencies
Animators and vfx artists
Game developers and interactive media teams
Storyboard artists and previsualization teams
Ai researchers and machine learning engineers
Production studios and post-production teams
Educators and students in film, animation, and media
Voice-over, dubbing, and localization teams
Independent creators and prototype designers