Ultimate Video Upscaler

Upscale videos to 720p, 1080p, 2K, or 4K with a simple upload. This is the most advanced video upscaler in the world, delivering the highest output quality and exceptional frame-to-frame consistency. Also check out Video Upscaler Pro, Standard Video Upscaler, and FlashVSR for other options.

Why It Looks Great

Temporal consistency Minimizes flicker and ghosting across frames for stable motion.
Detail reconstruction Restores fine textures (hair, fabric, foliage) and sharp edges without over-sharpening.
Artifact cleanup Reduces compression blocks, ringing, and shimmering in challenging shots.
Motion-aware upscaling Preserves fast action and camera pans with fewer motion artifacts.
Natural look Balances perceptual quality with crispness to avoid plastic or overprocessed outputs.

Parameters

Parameter	Required	Description
video	Yes	Input video to upscale (URL or upload)
target_resolution	No	Output resolution: 720p, 1080p, 2k, 4k (default: 1080p)

Limits and Performance

Max clip length per job: up to 10 minutes
Processing speed: approximately 10–30 seconds of wall time to process 1 second of video (varies by resolution and queue load)

How to Use

Choose target resolution — select 720p, 1080p, 2K, or 4K based on your needs.
Upload your video — drag-and-drop or paste a public URL (≤ 10 minutes).
Submit — run the job and wait for processing.
Download — preview and save the upscaled result.

Pricing

Per-second billing with a 5-second minimum. The table below lists prices per 5 seconds for easy comparison.

Output Resolution	Cost per 5 seconds
720p	$0.10
1080p	$0.15
2K	$0.25
4K	$0.40

Billing Rules

Minimum charge: 5 seconds
Per-second rate = (price per 5 seconds) ÷ 5
Billed duration = video length in seconds (rounded up), with a 5-second minimum
Total cost = billed duration × per-second rate (by output resolution)

Pro Tips

Upload the highest-quality source you have; avoid heavily compressed inputs when possible.
Keep original frame rate; avoid unnecessary re-encoding before upload.
Pick the lowest resolution that meets your delivery needs (1080p = speed/cost, 2K/4K = maximum detail).
For long videos, process in segments to parallelize and then merge.

Notes

Video is the only required field.
Maximum video length per job: 10 minutes.
Ensure video URLs are publicly accessible.

Ultimate Video Upscaler API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/wavespeed-ai/ultimate-video-upscaler 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 Ultimate Video Upscaler below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/ultimate-video-upscaler" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "video": "https://example.com/your-input.mp4",
    "target_resolution": "1080p"
}'

# 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("wavespeed-ai/ultimate-video-upscaler", {
        "video": "https://example.com/your-input.mp4",
        "target_resolution": "1080p"
});

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

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "wavespeed-ai/ultimate-video-upscaler",
    {
    "video": "https://example.com/your-input.mp4",
    "target_resolution": "1080p"
}
)

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

Ultimate Video Upscaler API — Frequently asked questions

What is the Ultimate Video Upscaler API?

Ultimate Video Upscaler is a WaveSpeedAI model for upscaling, exposed as a REST API on WaveSpeedAI. Ultimate Video Upscaler converts low-resolution videos into crisp 4K footage with seamless motion dynamics and frame consistency. 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 Ultimate Video Upscaler 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/wavespeed-ai/ultimate-video-upscaler.

How much does Ultimate Video Upscaler cost per run?

Ultimate Video Upscaler 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 Ultimate Video Upscaler accept?

Key inputs: `video`, `target_resolution`. 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/wavespeed-ai/ultimate-video-upscaler.

How do I get started with the Ultimate Video Upscaler 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 Ultimate Video Upscaler outputs commercially?

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

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