Vidu Reference to Video Q1 | Fast Image-to-Video API

Vidu Reference-to-Video Q1

Vidu Reference-to-Video Q1 generates high-quality 5-second videos guided by multiple reference images. It combines advanced appearance preservation and motion synthesis, allowing creators to animate characters, products, or scenes while maintaining their original identity and style.

🌟 Key Features

🔁 Multi-Entity Consistency

Preserves the visual identity, color tone, and texture of all reference subjects.
Supports consistent appearance across dynamic motion sequences.
Ideal for animating characters, fashion items, or branded products.

🧩 Flexible Input Options

Accepts 1–7 reference images to define the subject, outfit, or style.
Supports aspect ratios 16:9, 9:16, and 1:1.
Adjustable movement amplitude (auto, small, medium, large) for customized motion intensity.

🎥 Cinematic Motion Generation

Adds smooth camera motion and ambient scene transitions.
Creates realistic parallax effects and subject movement.
Works well with both portraits and product shots.

⚙️ Requirements

Images

Count: 1–7 reference images
Formats: PNG, JPEG, JPG
Aspect ratio: Between 1:4 and 4:1
Max file size: 50 MB per image

Prompt

Max length: 1500 characters
Describe desired motion, scene, or style.

Example: “The girl in image 2 wears the glasses from image 1 and walks through a sunny street, soft natural light, cinematic color tone.”

💰 Price

Duration	Resolution	Cost per job
5 seconds	720p	$0.40

💡 Best Practices

Use clear, high-resolution reference images for optimal appearance consistency.
Describe the desired motion and scene context in detail.
Experiment with movement amplitude to adjust animation style.
Include multiple reference images for complex scenes or multi-object compositions.
Keep visual themes consistent (lighting, color palette, resolution).

⚠️ Effect Boundaries

Works best with realistic, well-lit images.
Overly stylized or low-quality inputs may cause flickering or distortion.
Movement amplitude directly affects scene dynamics and smoothness.
Complex multi-character prompts may require more references for stability.

📝 Notes

Make sure each uploaded image is accessible and properly formatted.
Check that the prompt and image order correspond correctly (e.g., “image 1,” “image 2”).
If outputs look inconsistent, simplify the scene or reduce reference count.
Simple, focused prompts yield the best alignment and motion results.

Reference To Video Q1 API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/vidu/reference-to-video-q1 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 Reference To Video Q1 below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/vidu/reference-to-video-q1" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "aspect_ratio": "16:9",
    "movement_amplitude": "auto",
    "seed": 0
}'

# 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/reference-to-video-q1", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "aspect_ratio": "16:9",
        "movement_amplitude": "auto",
        "seed": 0
});

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

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "vidu/reference-to-video-q1",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "aspect_ratio": "16:9",
    "movement_amplitude": "auto",
    "seed": 0
}
)

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

Reference To Video Q1 API — Frequently asked questions

What is the Reference To Video Q1 API?

Reference To Video Q1 is a Vidu model for video generation from images, exposed as a REST API on WaveSpeedAI. Generate videos from reference images while keeping characters, objects, and scene identity consistent using Multi-Entity Consistency. 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 Reference To Video Q1 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-reference-to-video-q1.

How much does Reference To Video Q1 cost per run?

Reference To Video Q1 starts at $0.40 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 Reference To Video Q1 accept?

Key inputs: `prompt`, `images`, `aspect_ratio`, `seed`, `movement_amplitude`. 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-reference-to-video-q1.

How long does Reference To Video Q1 take to generate?

Average end-to-end generation time on WaveSpeedAI is around 203 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Reference To Video Q1 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.

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