Name: SkyReels-V4 - AI Video Audio Generator
Availability: InStock
Author: SkyReels-V4

Question 1

What is SkyReels-V4?

Accepted Answer

SkyReels-V4 is a unified multi-modal video foundation model for joint video-audio generation, inpainting, and editing. Built on a dual-stream Multimodal Diffusion Transformer (MMDiT) architecture, SkyReels-V4 supports 1080p resolution, 32 FPS, and 15-second video output with synchronized audio generation.

Question 2

Is SkyReels-V4 free to use?

Accepted Answer

Yes, SkyReels-V4 offers a free tier for AI video and audio generation. Create SkyReels videos daily with no credit card required. Upgrade to the SkyReels-V4 Pro plan for unlimited access, higher resolution output, and commercial licensing.

Question 3

What inputs does SkyReels-V4 support?

Accepted Answer

SkyReels-V4 accepts multi-modal instructions including text prompts, images, video clips, masks, and audio references. This channel concatenation formulation enables SkyReels-V4 to handle diverse tasks like image-to-video conversion, video extension, and video editing within a unified framework.

Question 4

Can SkyReels-V4 generate audio with video?

Accepted Answer

Yes, SkyReels-V4 features native video-audio joint generation through its dual-stream MMDiT architecture. The video branch and audio branch share text encoding while generating temporally aligned audio that syncs perfectly with the visual content, including lip-sync for dialogue scenes.

Question 5

What is the maximum output quality of SkyReels-V4?

Accepted Answer

SkyReels-V4 supports up to 1080p resolution at 32 FPS with 15-second duration. The model uses a joint generation strategy of low-resolution full sequences and high-resolution keyframes, followed by super-resolution and frame interpolation for efficient high-quality output.

Question 6

How does SkyReels-V4 compare to SkyReels V3?

Accepted Answer

SkyReels-V4 introduces the dual-stream MMDiT architecture replacing SkyReels V3's single-stream approach. Key upgrades include native video-audio joint generation, video inpainting with mask support, video editing capabilities, and support for audio reference inputs — features not available in SkyReels V3.

Question 7

What is SkyReels-V4 video inpainting?

Accepted Answer

SkyReels-V4 video inpainting uses a channel concatenation formulation to fill or modify selected regions of video frames. By providing mask inputs alongside video clips, SkyReels-V4 can remove unwanted objects, replace backgrounds, or seamlessly edit video content while maintaining temporal consistency.

Question 8

Is SkyReels-V4 open source? Where can I find the paper?

Accepted Answer

The SkyReels-V4 research paper is available on arXiv (ID: 2602.21818) and Hugging Face Papers. The paper was submitted on February 25, 2026 by the Skywork team. Check the official SkyReels repository for code and model weight release updates.

Question 9

What is the difference between SkyReels platform and SkyReels-V4 model?

Accepted Answer

SkyReels-V4 is the underlying AI model (multi-modal video foundation model) developed by Skywork, while the SkyReels platform is a commercial service integrating multiple AI models. The SkyReels-V4 model powers video-audio generation, inpainting, and editing capabilities.

Question 10

Does SkyReels-V4 have an API for developers?

Accepted Answer

Yes, the SkyReels-V4 API is available for developers to integrate multi-modal video-audio generation into their applications. The API supports text-to-video, image-to-video, video inpainting, video editing, and batch processing with audio synchronization.

Showcases

AI Videos Created with SkyReels-V4