SkyReels-V4

What is SkyReels-V4

SkyReels-V4 is a cutting-edge multimodal video foundation model developed by Skywork AI (Kunlun). It is the first model to unify video and audio synthesis into a single framework, allowing for the simultaneous generation, inpainting, and editing of high-fidelity content. By employing a Dual-Stream Multimodal Diffusion Transformer (MMDiT) architecture, it ensures that sight and sound are semantically and temporally synchronized from the start, moving beyond the traditional "visuals first, audio later" workflow.

Key Features

• Native Audio-Visual Co-Generation: Generates synchronized sound effects and ambient audio that match visual cues at the microsecond level.
• Multimodal Input Support: Accepts text prompts, reference images, video clips, binary masks, and audio references.
• Unified Editing & Inpainting: Handles image-to-video, video extension, and object removal/replacement under a single interface.
• Cinematic Quality: Supports 1080p resolution at 32 FPS for sequences up to 15 seconds with high stability and motion smoothness.
• Character & Style Consistency: Maintains consistent character features across different scenes using reference images.

Use Cases

• Social Media & Marketing: Creating B-roll and product loops with realistic ambient sound for rapid content production.
• Film & Narrative Storytelling: Building consistent series or short films using scripts and character references.
• Post-Production: Automating object removal, background replacement, and lip-syncing for dubbed content.
• E-commerce: Animating static product photos into high-quality promotional videos with matching sound effects.
• Enterprise Pipelines: Integrating the API into creative tools to automate high-volume video production for agencies.