HappyHorse 1.0: #1 Ranked AI Video Model - Coming Soon to Picsart

HappyHorse 1.0 is a 15-billion-parameter unified single-stream Transformer built by Taotian Future Life Lab — a team led by Zhang Di, former VP of Kuaishou and head of Kling AI technology. It's the first AI video model to jointly generate video and audio in a single forward pass, rather than generating video first and adding audio as a separate step. The result: perfectly synchronized dialogue, sound effects, and ambient audio that match the visual content from the first frame. It outputs native 1080p video across multiple aspect ratios (16:9, 9:16, 4:3, 21:9, 1:1) with clips of 5–8 seconds. It supports 7 languages — English, Mandarin, Cantonese, Japanese, Korean, German, and French — making it the most linguistically versatile video model available. On April 8, 2026, it debuted at #1 on Artificial Analysis' blind-test leaderboard, surpassing Seedance 2.0 and every other model in the field.

Picsart is an official launch partner for HappyHorse 1.0. When the model launches, it will be available across three Picsart tools. In the AI Video Generator, you'll be able to select HappyHorse 1.0 to generate video with native audio from text or image prompts — dialogue, ambient sound, and music generated alongside the visuals automatically. In AI Playground, you'll experiment with different prompts, aspect ratios, and multilingual audio output. In Flow, you'll be able to chain HappyHorse 1.0 with other models to build automated video production pipelines.

HappyHorse 1.0 tackles the biggest bottleneck in AI video: audio. Every other model generates silent video, forcing creators to add voiceover, sound effects, and music in post. HappyHorse generates it all in one pass — dialogue that matches lip movements, ambient sounds that fit the scene, music that matches the mood. Ranked #1 on Artificial Analysis' blind-test leaderboard ahead of Seedance 2.0 and other leading models, it delivers top-tier visual quality alongside its audio capabilities. At 15 billion parameters on a unified single-stream Transformer, it's also fast: ~38 seconds for a 1080p clip on an H100. Seven-language support with natural lip-sync makes it the most practical choice for creators producing content across markets. Coming soon to Picsart as a launch partner integration.

HappyHorse 1.0 will join 90+ AI models on Picsart, alongside Kling 3.0, Veo 3.1, Runway Gen 4, Seedance 2.0, WAN 2.7, and other leading video models. Picsart's multi-model approach lets creators choose the right tool for each job: once available, use HappyHorse 1.0 when you need native audio-video generation, switch to Kling 3.0 Omni for reference-based character work, or try Veo 3.1 for cinematic stability — all from one platform.