SkyReels V4 Image to Video API

Skywork AI SkyReels V4 Image-to-Video

Skywork AI SkyReels V4 Image-to-Video generates videos from a starting image, with optional middle-frame and end-frame guidance for stronger visual control. It supports standard and fast generation modes, multiple resolutions, optional sound effects, and prompt-driven motion design for cinematic, product, and storytelling workflows.

Why Choose This?

Image-guided video generation Start from a first-frame image and turn it into a motion video clip with prompt-based control.
Multi-frame guidance Optionally add middle-frame images and an end-frame image to better control progression, structure, and visual consistency.
Two generation modes Choose std for higher-quality output or fast for quicker, lower-cost generation.
Multiple resolution options Supports 480p, 720p, and 1080p to balance quality and budget.
Optional sound effects Enable sound when you want the video generated with audio effects.
Production-ready workflow Suitable for product videos, stylized motion design, short-form storytelling, and visual prototyping.

Parameters

Parameter	Required	Description
prompt	Yes	The prompt describing the video motion or camera behavior.
first_frame_image	Yes	First frame image URL.
end_frame_image	No	Optional end frame image URL.
images	No	Optional middle frame image URLs. Upload up to `6` images.
duration	No	Duration of the generated video in seconds. Range: `3–15`. Default: `5`.
resolution	No	Output video resolution. Supported values: `480p`, `720p`, `1080p`. Default: `1080p`.
sound	No	Whether to generate sound effects with the video. Default: `false`.
mode	No	Quality/performance mode. Supported values: `std`, `fast`. Default: `std`. `fast` mode currently requires `sound=false`.

How to Use

Upload the first frame — provide the starting image for the video.
Write your prompt — describe the motion, camera movement, pacing, and visual behavior you want.
Add guide frames (optional) — upload middle-frame images and/or an end-frame image for more controlled progression.
Choose duration — select a clip length between 3 and 15 seconds.
Choose resolution — use 480p, 720p, or 1080p depending on quality and budget needs.
Choose mode — use std for higher quality or fast for quicker generation.
Enable sound (optional) — turn this on if you want generated sound effects. If using fast, keep sound=false.
Submit — run the model and download the generated video.

Example Prompt

A cinematic product reveal with smooth forward camera motion, soft reflections, elegant studio lighting, subtle object rotation, and premium commercial pacing.

Pricing

Pricing depends on duration, resolution, and mode.

Standard Mode

Resolution	Per Second	5s Cost
480p	$0.11	$0.55
720p	$0.14	$0.70
1080p	$0.35	$1.75

Fast Mode

Resolution	Per Second	5s Cost
480p	$0.08	$0.40
720p	$0.11	$0.55
1080p	$0.275	$1.375

Example Costs

Standard Mode

Resolution	3s	5s	10s	15s
480p	$0.33	$0.55	$1.10	$1.65
720p	$0.42	$0.70	$1.40	$2.10
1080p	$1.05	$1.75	$3.50	$5.25

Fast Mode

Resolution	3s	5s	10s	15s
480p	$0.24	$0.40	$0.80	$1.20
720p	$0.33	$0.55	$1.10	$1.65
1080p	$0.825	$1.375	$2.75	$4.125

Billing Rules

Base multiplier starts from $0.10 per second
Pricing scales linearly with duration
std and fast use different resolution multipliers
sound does not affect pricing directly
fast mode currently requires sound=false

Best Use Cases

Product motion videos — Turn still product shots into polished reveal clips.
Storytelling sequences — Use start, middle, and end guidance to shape a clear visual arc.
Creative prototyping — Test motion concepts quickly with fast mode.
Social and ad content — Generate short-form videos with clear visual direction.
Cinematic image animation — Create controlled motion from a sequence of reference frames.

Pro Tips

Use a strong first-frame image for better visual consistency.
Add middle or end frames when scene progression matters more than freeform motion.
Keep prompts focused on motion, pacing, and camera behavior rather than static visual details already present in the images.
Use fast mode for quick iteration, then switch to std for final-quality output.
Keep sound=false when using fast mode.
Start with shorter durations to validate motion before generating longer clips.

Notes

prompt and first_frame_image are required.
images supports up to 6 optional middle-frame images.
duration supports 3–15 seconds.
resolution defaults to 1080p.
mode defaults to std.
fast mode currently requires sound=false.
Pricing depends on duration, resolution, and mode.

Related Models

Skywork AI SkyReels V4 Text-to-Video — Generate videos directly from text prompts.
Skywork AI SkyReels V3 Reference-to-Video — Generate videos from one to four reference images and a prompt.
Skywork AI SkyReels V3 Extend Video — Continue an existing video clip with newly generated footage.
Skywork AI SkyReels V3 Pro Multi Avatar — Higher-tier two-speaker avatar generation from one scene image.

Skyreels v4 Image To Video API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/skywork-ai/skyreels-v4/image-to-video with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Skyreels v4 Image To Video below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/skywork-ai/skyreels-v4/image-to-video" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "duration": 5,
    "resolution": "1080p",
    "sound": false,
    "mode": "std"
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("skywork-ai/skyreels-v4/image-to-video", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "duration": 5,
        "resolution": "1080p",
        "sound": false,
        "mode": "std"
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "skywork-ai/skyreels-v4/image-to-video",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "duration": 5,
    "resolution": "1080p",
    "sound": false,
    "mode": "std"
}
)

print(output["outputs"][0])  # → URL of the generated output

Skyreels v4 Image To Video API — Frequently asked questions

What is the Skyreels v4 Image To Video API?

Skyreels v4 Image To Video is a Skywork Ai model for video generation from images, exposed as a REST API on WaveSpeedAI. SkyReels V4 Image to Video is a fast AI image-to-video generation model that creates high-quality videos from image references and text prompts using the SkyReels V4 image2video workflow. Ready-to-use REST inference API for animating images, product videos, character motion, branded storytelling, social media clips, advertising creatives, and professional image-to-video workflows with simple integration, no coldstarts, and affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Skyreels v4 Image To Video API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/skywork-ai/skywork-ai-skyreels-v4-image-to-video.

How much does Skyreels v4 Image To Video cost per run?

Skyreels v4 Image To Video starts at $0.10 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Skyreels v4 Image To Video accept?

Key inputs: `prompt`, `images`, `resolution`, `duration`, `end_frame_image`, `first_frame_image`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/skywork-ai/skywork-ai-skyreels-v4-image-to-video.

How do I get started with the Skyreels v4 Image To Video API?

Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.

Can I use Skyreels v4 Image To Video outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (Skywork Ai). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

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관련 모델

README

Skywork AI SkyReels V4 Image-to-Video

Why Choose This?

Parameters

How to Use

Example Prompt

Pricing

Standard Mode

Fast Mode

Example Costs

Standard Mode

Fast Mode

Billing Rules

Best Use Cases

Pro Tips

Notes

Related Models

Skyreels v4 Image To Video API — Quick start

Skyreels v4 Image To Video API — Frequently asked questions