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What is Happy Horse?

Happy Horse — also searched as happyhorse, happy horse ai, and happyhorse 1.0 — is an AI video generation model that ranks #1 on the Artificial Analysis Video Arena, the primary blind-test benchmark for AI video quality. Built on a unified 15-billion-parameter Transformer, Happy Horse generates video and synchronized audio in a single forward pass — dialogue, ambient sound, and Foley effects produced alongside the visual output. It supports native 1080p at 24fps with lip synchronization across seven languages. This platform is the Happy Horse creative studio — generate video, image, and audio directly in your browser.

Asked by Dovid Klein · Oct 16, 2025

Is Happy Horse open source?

The Happy Horse team has announced open-source availability including base model weights, distilled models, super-resolution modules, and inference code with a commercial license. Independent verification of the full weight release is ongoing. The open-source release covers Happy Horse 1.0 — the model version currently ranked #1 on the Artificial Analysis leaderboard.

Asked by Gabriel Duarte · Sep 27, 2025

Where can I try Happy Horse right now?

You can generate AI video and images powered by Happy Horse directly on this platform — no download, no GPU, no account required to browse. Sign up for free starter access to generate your first outputs immediately. The Happy Horse API is planned for availability at the end of April 2026 for developers who want to integrate the model into their own applications.

Asked by Bilal Choudhury · Sep 27, 2025

Does Happy Horse generate audio with video?

Yes. Happy Horse generates video and audio jointly in a single forward pass using its unified Transformer architecture. The model produces synchronized dialogue with phoneme-level lip sync across seven languages (English, Mandarin, Cantonese, Japanese, Korean, German, French), ambient environmental sound, and Foley effects — all without a separate audio generation or post-processing step. On this platform, Kling and Veo also support native audio co-generation.

Asked by Ren Nakamura · Sep 16, 2025

What video resolution and duration does Happy Horse support?

Happy Horse outputs native 1080p video at 24 frames per second. Current generation length is 5 to 8 seconds per clip. On a single H100 GPU, a 5-second 1080p clip generates in approximately 38 seconds. On this platform, other engines extend your options — Kling supports up to 15 seconds with multi-shot sequencing, and Veo produces 4-, 6-, or 8-second cinema-grade clips.

Asked by Jamal Carter · Aug 5, 2025