SkyReels V4 is Skywork AI's unified video-audio generation model. A single SkyReels V4 render produces a 15-second 1080p clip at 32 FPS with temporally aligned audio. Inputs span text, images, video, masks, and audio references.
Skywork's dual-stream video-audio model with native inpainting and editing
SkyReels V4 is Skywork AI's first unified video-audio generation model, released on 2026-02-25. The architecture is a dual-stream Multimodal Diffusion Transformer (MMDiT): one branch synthesizes video, the other generates temporally aligned audio, both sharing an MLLM-based text encoder. A SkyReels V4 generation accepts text, images, video clips, masks, and audio references β covering text-to-video, image-to-video, inpainting, and editing in a single pipeline. Output caps at 1080p, 32 FPS, 15 seconds per render.
SkyReels V4 outputs up to 1080p at 32 FPS β smoother motion than the typical 24/30 FPS most text-to-video models default to.
A single SkyReels V4 render produces a 15-second clip β long enough for an opener or a B-roll segment without chaining.
SkyReels V4 generates audio in the same render, time-aligned with the on-screen action β no separate Foley pass.
Text, images, video clips, masks, and audio references β SkyReels V4 reads all five modalities in a single prompt.
Mask a region; describe the change. SkyReels V4 fills it in while preserving the rest of the frame and the audio bed.
Pass an existing clip plus an instruction β SkyReels V4 edits video and audio together, and a SkyReels V4 edit needs no separate tool.
SkyReels V4 β text in, 15s of 1080p video and synced audio out.
You describe the scene; SkyReels V4 reads it and renders a 15-second 1080p clip at 32 FPS with temporally aligned audio. One render, one pipeline, no separate audio pass.
Text + images + video + masks + audio β a SkyReels V4 prompt reads all of them.
Drop a reference image to lock a character, an existing clip to extend, a mask to localize an edit, or an audio clip to match the soundtrack. SkyReels V4 takes the full multimodal bundle in one call.
SkyReels V4 covers text-to-video, image-to-video, inpainting, and editing in one pipeline.
Earlier video models only generated from scratch. SkyReels V4 also accepts an existing clip and a mask or instruction, then edits both video and audio together β character swap, background fix, audio overlay, all without leaving the model.
Dual-stream architecture means SkyReels V4 audio is time-aligned with frames at the model level.
The MMDiT architecture has two branches: one for video, one for audio, both sharing the text encoder. Practical effect: the SkyReels V4 audio bed lines up with action β footsteps hit on contact, dialogue lip-syncs, ambient cues match the cut.
SkyReels V4 takes shot-list vocabulary β dolly, crane, lens, light, color grade.
Brief the clip the way you'd brief a cinematographer. Name the lens, the move, the key and rim light, the mood, the audio. SkyReels V4 lands closer to a staged shot than guess-and-reroll.
Eight clips β each caption is a reusable SkyReels V4 prompt
Verified specs from each vendor's official page β no third-party numbers.
| Capability | SkyReels V4 | Veo 3.1 | Seedance 2.0 | Sora 2 |
|---|---|---|---|---|
| Max clip length | 15 seconds | 8s base; up to 148s via Scene Extension | 15 seconds (multi-shot) | Up to 12s (Sora 2 API) |
| Resolution / FPS | Up to 1080p / 32 FPS | Up to 4K upscale | Not officially specified | Up to 720p (Sora 2) |
| Audio in render | Yes, time-aligned | Yes, native 48kHz | Yes, dual-channel | Yes, synced audio |
| Input modalities | Text, image, video, mask, audio | Text, image | Text, image, audio, video | Text, image |
| Inpainting + editing | Yes, native (mask + instruction) | Not documented | Not documented | Not documented |
| Release date | 2026-02-25 (Skywork AI) | 2026-01-13 (Google DeepMind) | 2026-02-12 (ByteDance Seed) | 2025 (OpenAI) |
Four habits that separate usable footage from reroll noise
Name subject, camera move, lens, light, mood, and audio in one SkyReels V4 prompt. A SkyReels V4 render reflects what you give it.
16:9 for YouTube, 9:16 for Reels, 1:1 for feeds. Set both before submitting to SkyReels V4 β SkyReels V4 caps at 15s per render.
Pass a reference image when a character or product needs to look the same shot to shot. SkyReels V4 reads images, video, masks, and audio together.
Say what you want to hear β 'ambient rain', 'upbeat lofi', 'two friends laughing'. SkyReels V4 ships the audio in the same render.
Each video model has its own strengths β realism, speed, style, cost
What users actually ask before their first SkyReels V4 render
Free. No credit card. 15s of 1080p video with time-aligned audio. Try SkyReels V4 on ZorqAI above.
