Vidu Q2 Pro Extend Video | AI Video Extension API

Vidu Q2 Pro Video Extend

Vidu Q2 Pro Video Extend seamlessly extends your videos by generating additional frames that naturally continue the motion and narrative. Upload a video, optionally provide a guidance image for the ending, and let AI extend your content with smooth, coherent continuation.

Why Choose This?

Seamless continuation AI analyzes motion patterns and scene context to generate frames that flow naturally from your original video.
Guided extension Optionally upload an end-frame image to steer where the video should go.
Prompt control Add text descriptions to guide the extended content's direction and style.
Flexible duration Extend videos by 1 to 5 seconds at a time.
Multiple resolutions Output in 540p, 720p, or 1080p to match your quality needs.
Pro-tier quality Q2 Pro delivers enhanced motion coherence and detail preservation.

Parameters

Parameter	Required	Description
video	Yes	Source video to extend
image	No	End-frame guidance image
prompt	No	Text description to guide extension direction
duration	No	Extension length: 1–7 seconds
resolution	No	Output resolution: 540p, 720p, or 1080p

How to Use

Upload your video — the source video you want to extend.
Add guidance image (optional) — provide an end-frame to steer the extension.
Write a prompt (optional) — describe what should happen in the extended portion.
Set duration — choose how many seconds to extend (1–7).
Select resolution — 540p, 720p, or 1080p.
Run — generate and download your extended video.

Pricing

Duration	540p	720p	1080p
1 s	$0.04	$0.075	$0.275
2 s	$0.05	$0.125	$0.35
3 s	$0.075	$0.175	$0.425
4 s	$0.10	$0.225	$0.50
5 s	$0.125	$0.275	$0.575
6 s	$0.15	$0.325	$0.65
7 s	$0.175	$0.375	$0.725

Best Use Cases

Extend short clips — Add more runtime to clips that ended too soon.
Smooth transitions — Generate bridge content between scenes.
Loop creation — Extend videos for seamless looping content.
Creative exploration — See where AI takes your video next.
Content padding — Reach minimum duration requirements for platforms.

Pro Tips

Higher quality source videos produce better extensions.
Use the guidance image to control the endpoint of your extension.
Prompts help when you want specific actions or elements in the extended portion.
For longer extensions, run multiple passes (extend, then extend again).
Match resolution to your source video for best consistency.

Notes

Video is the only required field.
Maximum extension: 7 seconds per run.
For longer extensions, process in multiple passes.
Ensure uploaded file URLs are publicly accessible.

Related Models

Vidu Q2 Turbo Video Extend — Faster, more affordable video extension.

Q2 Pro Extend Video API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/vidu/q2-pro/extend-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 Q2 Pro Extend Video below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/vidu/q2-pro/extend-video" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "video": "https://example.com/your-input.mp4",
    "image": "https://example.com/your-input.jpg",
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "duration": 5,
    "resolution": "720p"
}'

# 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("vidu/q2-pro/extend-video", {
        "video": "https://example.com/your-input.mp4",
        "image": "https://example.com/your-input.jpg",
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "duration": 5,
        "resolution": "720p"
});

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

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "vidu/q2-pro/extend-video",
    {
    "video": "https://example.com/your-input.mp4",
    "image": "https://example.com/your-input.jpg",
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "duration": 5,
    "resolution": "720p"
}
)

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

Q2 Pro Extend Video API — Frequently asked questions

What is the Q2 Pro Extend Video API?

Q2 Pro Extend Video is a Vidu model for video extension, exposed as a REST API on WaveSpeedAI. Vidu Q2 Pro Extend Video seamlessly extends existing videos by 1-7 seconds with high-quality motion and scene continuity. Supports optional end-frame image guidance for precise control. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Q2 Pro Extend 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/vidu/vidu-q2-pro-extend-video.

How much does Q2 Pro Extend Video cost per run?

Q2 Pro Extend Video starts at $0.15 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 Q2 Pro Extend Video accept?

Key inputs: `prompt`, `image`, `video`, `resolution`, `duration`. 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/vidu/vidu-q2-pro-extend-video.

How do I get started with the Q2 Pro Extend 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 Q2 Pro Extend Video outputs commercially?

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

ExamplesView all

Related Models

README

Vidu Q2 Pro Video Extend

Why Choose This?

Parameters

How to Use

Pricing

Best Use Cases

Pro Tips

Notes

Related Models

Q2 Pro Extend Video API — Quick start

Q2 Pro Extend Video API — Frequently asked questions