Video

skyreels-v4

The SkyReels V4 API on APIMart is Skywork AI's first unified video + audio foundation model. SkyReels V4 delivers 1080p at 32 FPS with 15-second clips, native audio, and cinematic multi-shot coherence in a single generation pass.

Video + Audio1080p / 32 FPS

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Service Highlights

99.9% SLA
Official Discounts
Pay-as-you-go
Fast & Low Latency

Input

Model

Prompt

60/5000

Duration5s

Resolution

Aspect Ratio

Prompt Extend

Reference Image

First Frame

End Frame

Mid Frames0/6

No mid frames added

Output

Video link valid for 72 hours

Pricing Details

Transparent pricing with no hidden fees. Pay only for what you use.

* Actual costs are subject to final output.

SkyReels V4

Released by Skywork AI in February 2026, the SkyReels V4 API generates video and synchronized audio together — dialogue, lip-sync, and ambient sound rendered with the visuals. Every SkyReels V4 API call outputs up to 1080p at 32 FPS, 15 seconds per clip. Tap the video to hear SkyReels V4's native audio.

50K+

Active Users

99.9%

Uptime

Faster

70%

Cost Savings

Eight Things That Make SkyReels V4 API Different

Capabilities of SkyReels V4 are published in the official paper and reproduced in Skywork AI's demos. All specs reflect the February 2026 release.

Joint Video + Audio Generation

The SkyReels V4 API is the first open foundation model where audio is generated alongside video. SkyReels V4 keeps dialogue lip-synced, ambient sound matched to the scene, and music cues landing on action — no separate TTS or foley pass.

Dual-Stream MMDiT Architecture

Inside SkyReels V4, one transformer branch synthesizes video and another generates temporally-aligned audio. A shared MLLM encoder keeps both SkyReels V4 streams locked to the same prompt semantics.

Multimodal Input Control

Mix text, images, video fragments, audio references, and masks in the same SkyReels V4 API request. The encoder fuses them into a single conditioning signal for precise guidance.

Inpainting & Full-Dimension Editing

Professional masked-region regeneration plus style transfer, camera-angle adjustment, and subject replacement — delivered through one unified SkyReels V4 call.

1080p @ 32 FPS, 15s Clips

The SkyReels V4 API outputs native 1080p at 32 FPS with 15-second max duration — enough headroom for short-form ads, cinematic shots, and social video without post-production upscaling.

Cinematic Multi-Shot Coherence

Subject identity, lighting, and motion logic stay consistent across shot cuts. SkyReels V4 eliminates flicker or drift at scene boundaries.

Top-Ranked Prompt Adherence

The SkyReels V4 API scores highest overall on SkyReels-VABench human evaluation — 2,000+ prompts reviewed by 50 professional evaluators. SkyReels V4 is especially strong in prompt following and motion quality.

APIMart Day-One Integration

The moment Skywork AI opens SkyReels V4, APIMart flips the switch on SkyReels V4. Your existing key, balance, and billing work unchanged — no new account, no new SDK.

Who Benefits Most from SkyReels V4 API

Teams whose workflow breaks at the boundary between video generation and audio production see the biggest lift from the SkyReels V4 API unified pipeline.

Short-Form Social Content

The SkyReels V4 API produces TikTok- and Reels-ready 15-second clips at 1080p with native audio — no separate music track, no manual lip-sync pass. One SkyReels V4 call delivers the whole deliverable.

Performance Advertising

Marketing teams use the SkyReels V4 API to produce variant-heavy ad creative: same script, multiple voice-overs, different product shots. Joint generation cuts turnaround from days to minutes.

Pre-Production & Animatics

Directors storyboard full scenes with dialogue and ambient sound in one pass. The SkyReels V4 API collapses the temp-track phase into shot-planning — a real time save on indie projects.

Product Demos & E-commerce

The SkyReels V4 API renders 360-style product videos with narrated voice-over and room-accurate audio. Useful for marketplaces rewarding video PDPs and retailers needing fast variant shoots.

Localized Content at Scale

Re-generate the same scene with a different voice, dialect, or language — lip-sync and motion stay consistent. SkyReels V4 is a genuine alternative to dubbing studios.

Game Cinematics & NPC Dialogue

Indie game teams prototype cutscenes and NPC interactions with the SkyReels V4 API: character turn, line delivery, and ambient sound generated together. One SkyReels V4 call replaces a three-tool chain.

Get Ready for SkyReels V4 API Before Launch

Three steps so you can call the SkyReels V4 API the moment it goes live on APIMart — no waiting, no contact form.

Create an APIMart account

Free to sign up. One account unlocks every model in the catalog, including the SkyReels V4 API when it launches.

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Top up your balance

Pay-as-you-go, no monthly minimums. Credits you add now will cover SkyReels V4 calls on day one.

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Generate a key

Create a key now and wire it into your app. When SkyReels V4 is live, switch the model ID and you're done — no new SDK, no new auth flow.

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SkyReels V4 API — Frequently Asked Questions

What the SkyReels V4 API does, how it compares to other video models, and what changes when it goes live on APIMart.

What is SkyReels V4 API?

SkyReels V4 API is a unified multi-modal video foundation model released by Skywork AI in February 2026. Unlike earlier models that generated silent footage, it produces video and synchronized audio — dialogue, ambient sound, and music — in a single generation pass. Supports up to 1080p resolution, 32 FPS, and 15-second clip duration.

How does the SkyReels V4 API dual-stream architecture work?

SkyReels V4 uses a dual-stream Multimodal Diffusion Transformer (MMDiT). One branch synthesizes video frames, the other generates temporally-aligned audio, and both share an MLLM-based text encoder that keeps them locked to the same prompt. Output has lip-synced dialogue, scene-matched ambient sound, and music cues landing on action.

Does the model generate audio natively?

Yes. Audio is part of the generative stream rather than a post-processing step. Dialogue, ambient sound, music cues, and environmental effects are produced at the same time as video frames. Tap any demo on this page to hear it directly.

Can SkyReels V4 edit existing video?

Yes. It supports professional video inpainting (masked-region regeneration), full-dimension editing (style transfer, camera-angle adjustment, subject replacement), and audio-conditioned re-generation. Accepts video fragments, masks, and audio references as conditioning inputs alongside text prompts.

When will SkyReels V4 API be available on APIMart?

Integration is in progress. The model was released by Skywork AI in February 2026, and APIMart is working through the standard integration pass — model onboarding, pricing validation, and pipeline testing. For day-one access to the SkyReels V4 API, sign up for an APIMart account now — your existing key will work the moment the endpoint opens.

What will it cost on APIMart?

Pricing will be published when integration goes live. APIMart's model is unchanged: pay-as-you-go with no monthly minimum, historically 40-70% below list. The SkyReels V4 shares the same balance and billing as every other model in the catalog.

Do I need anything new to call SkyReels V4 when it launches?

No. If you already have an APIMart key and balance, you're set. Switch the model ID in your existing call and it works — no new SDK, no new auth, no migration. Request/response shape stays compatible with the rest of APIMart video endpoints.

What can I use while waiting?

Wan 2.7, Sora 2, and Kling V2.6 are live on APIMart today and cover most video generation needs. If native audio is the specific feature you need, there is no direct drop-in substitute — but you can prototype the visual side now and swap the model ID the moment integration ships.

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