Vidu Q2 Pro Start End to Video Fast | Fast Image-to-Video API

Vidu Q2 Pro Fast Start-End to Video

Vidu Q2 Pro Fast Start-End to Video generates smooth video transitions between a start frame and an end frame. This model combines the visual quality of Q2 Pro with faster generation speeds, perfect for scene transitions and visual storytelling.

Why Choose This?

Fast generation Significantly faster than Q2 Pro while maintaining high quality.
Bi-frame guidance Uses both start and end frames to anchor identity, layout, and lighting.
Temporal continuity Minimizes flicker and maintains subject integrity across frames.
Object-aware motion Preserves faces, hands, and fine details while animating.
Camera-path estimation Simulates subtle pans, dolly moves, and push-ins.

Parameters

Parameter	Required	Description
prompt	Yes	Text description of the video motion (max 2000 chars)
image	Yes	Start frame image (URL or upload)
last_image	Yes	End frame image (URL or upload)
duration	No	Video length: 1-8 seconds (default: 5)
resolution	No	Output resolution: 720p (default), 1080p
bgm	No	Add background music (default: enabled)
movement_amplitude	No	Motion intensity: auto (default), small, medium, large
seed	No	Random seed for reproducibility (-1 for random)

How to Use

Upload start image — provide the first frame of the transition.
Upload end image — provide the last frame of the transition.
Write your prompt — describe the motion and transition between frames.
Set duration — choose video length from 1 to 8 seconds.
Select resolution — 720p for faster processing, 1080p for higher quality.
Configure options (optional) — enable/disable BGM, adjust motion amplitude.
Run — submit and download your video.

Pricing

Resolution	Base price	Per additional second
720p	$0.04	$0.01
1080p	$0.08	$0.02

Examples

Resolution	Duration	Total cost
720p	1s	$0.04
720p	5s	$0.08
720p	8s	$0.11
1080p	1s	$0.08
1080p	5s	$0.16
1080p	8s	$0.22

Best Use Cases

Scene Transitions — Seamless bridges between shots in long-form content.
Before/After Sequences — Demonstrate change-over-time with smooth motion.
Film Previsualization — Explore transitions and camera moves early.
Storyboard Animation — Bring static boards to life between key beats.
Time-lapse Effects — Create smooth temporal transitions between two states.

Pro Tips

Ensure start and end frames have similar aspect ratios for best results.
Use clear prompts describing the motion between frames.
For big pose or layout jumps, consider shorter durations for smoother transitions.
Set movement_amplitude to "small" for subtle, professional transitions.
Use a specific seed to reproduce the same result across runs.
Enable BGM to add fitting background music automatically.

Notes

Prompt, image, and last_image are all required fields.
Maximum video duration is 8 seconds.
Start and end frames should share similar visual characteristics for best continuity.
Ensure uploaded image URLs are publicly accessible.
Seed value -1 generates a random seed each time.

Related Models

Vidu Q2 Pro Fast Image-to-Video — Single image to video generation.
Vidu Q3 Image-to-Video — Latest generation image-to-video with audio.
Vidu Q3 Text-to-Video — Generate video from text descriptions.

Q2 Pro Start End To Video Fast API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/vidu/q2-pro/start-end-to-video-fast 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 Start End To Video Fast below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/vidu/q2-pro/start-end-to-video-fast" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "image": "https://example.com/your-input.jpg",
    "duration": 5,
    "resolution": "720p",
    "bgm": true,
    "movement_amplitude": "auto",
    "seed": -1
}'

# 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/start-end-to-video-fast", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "image": "https://example.com/your-input.jpg",
        "duration": 5,
        "resolution": "720p",
        "bgm": true,
        "movement_amplitude": "auto",
        "seed": -1
});

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

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "vidu/q2-pro/start-end-to-video-fast",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "image": "https://example.com/your-input.jpg",
    "duration": 5,
    "resolution": "720p",
    "bgm": true,
    "movement_amplitude": "auto",
    "seed": -1
}
)

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

Q2 Pro Start End To Video Fast API — Frequently asked questions

What is the Q2 Pro Start End To Video Fast API?

Q2 Pro Start End To Video Fast is a Vidu model for video generation from images, exposed as a REST API on WaveSpeedAI. Vidu Q2 Pro Fast Start-End to Video generates smooth video transitions between start and end images with faster generation speed. Ready-to-use REST inference API, best performance, no cold starts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Q2 Pro Start End To Video Fast 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-start-end-to-video-fast.

How much does Q2 Pro Start End To Video Fast cost per run?

Q2 Pro Start End To Video Fast starts at $0.080 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 Start End To Video Fast accept?

Key inputs: `prompt`, `image`, `resolution`, `duration`, `seed`, `bgm`. 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-start-end-to-video-fast.

How long does Q2 Pro Start End To Video Fast take to generate?

Average end-to-end generation time on WaveSpeedAI is around 78 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Q2 Pro Start End To Video Fast 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 Fast Start-End to Video

Why Choose This?

Parameters

How to Use

Pricing

Examples

Best Use Cases

Pro Tips

Notes

Related Models

Q2 Pro Start End To Video Fast API — Quick start

Q2 Pro Start End To Video Fast API — Frequently asked questions