Image Upscaler API

About the Image Upscaler API

What Image Upscaler does, how it fits in the WaveSpeedAI model lineup, and why teams reach for it.

All Image Upscaler API endpoints

1 endpoint available now on WaveSpeedAI — pick the variant that matches your workflow.

Image Upscaler

AI Image Upscaler that enhances image resolution to 4K or 8K while improving detail and clarity for photos and graphics. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

upscalerfrom $0.010

See Image Upscaler in action

Real outputs generated by the Image Upscaler API. Hover any video to preview, click to open the full-size viewer.

How to use the Image Upscaler API

Four steps from signup to a finished generation. Full Python, Node.js, and cURL examples are in the API section below.

1. 1

   Get an API key

   Sign up for a WaveSpeedAI account and copy your API key from the dashboard. New accounts come with free starter credits — enough to run the playground a few dozen times before billing kicks in.

2. 2

   Submit a prediction

   POST your input as JSON to https://api.wavespeed.ai/api/v3/wavespeed-ai/image-upscaler. The endpoint returns a prediction id immediately — generations are async so you don't hold an open connection during inference.

3. 3

   Poll for completion

   GET https://api.wavespeed.ai/api/v3/predictions/{request_id}/result every 1-2 seconds. The response includes a status field; keep polling until it flips from "queued" or "processing" to "completed".

4. 4

   Read the output URL

   Once status is "completed", read the URL from data.outputs[0]. The URL points to your generated media on the WaveSpeedAI CDN — image, video, audio, or 3D file depending on the Image Upscaler variant you called.

What you can build with Image Upscaler

Common workflows developers and creators use the Image Upscaler API for.

Tips for prompting Image Upscaler

Practical advice for getting better outputs from Image Upscaler — drawn from the patterns that work across upscaler models in production pipelines.

Image Upscaler API pricing

Pricing is per-output. The final charge scales with the parameters you set in each variant's playground (resolution, duration, output count, references).

Call the Image Upscaler API

Sign up for an API key at wavespeed.ai/accesskey, then submit a prediction via REST. The playground generates ready-to-paste samples for any combination of inputs.

# 1. Submit a prediction
curl -X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/image-upscaler" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{}'

# 2. Poll the result until status = "completed"
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# Read the output URL from data.outputs[0].

// npm install wavespeed
const WaveSpeed = require('wavespeed');
const client = new WaveSpeed(); // reads WAVESPEED_API_KEY

const result = await client.run("wavespeed-ai/image-upscaler", {});
console.log(result.outputs[0]); // → URL of the generated output

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "wavespeed-ai/image-upscaler",
    {}
)
print(output["outputs"][0])  # → URL of the generated output

Image Upscaler vs alternatives

When to pick Image Upscaler over similar models on WaveSpeedAI.

Image Upscaler API — Frequently asked questions

Pricing, license, integration — common questions about running Image Upscaler on WaveSpeedAI.

About WaveSpeedAI

The team behind Image Upscaler and the broader WaveSpeedAI model lineup on WaveSpeedAI.

WaveSpeedAI runs an inference platform that hosts 1,000+ AI models from every major provider — ByteDance, Google, OpenAI, Alibaba, Kuaishou, ElevenLabs, and dozens of independent labs — behind one API key, one billing account, and one rate-limit envelope. WaveSpeedAI also ships first-party models (Image / Video Upscalers, Watermark Removers, Animate, InfiniteTalk) tuned for production pipelines.

Related model APIs on WaveSpeedAI

Other AI APIs from WaveSpeedAI and the rest of the upscaler model lineup — one API key, one billing account.