WaveSpeedAI Image Upscaler

Upscale images to 2K, 4K, or 8K resolution using WaveSpeed AI's Image Upscaler. Takes an image URL and produces a higher-resolution version. Supports JPEG, P...

Upscale images to 2K, 4K, or 8K resolution using WaveSpeed AI's Image Upscaler.

Authentication

export WAVESPEED_API_KEY="your-api-key"

Get your API key at wavespeed.ai/accesskey.

Quick Start

import wavespeed from 'wavespeed';

// Upload a local image to get a URL
const imageUrl = await wavespeed.upload("/path/to/photo.png");

const output_url = (await wavespeed.run(
  "wavespeed-ai/image-upscaler",
  { image: imageUrl }
))["outputs"][0];

You can also pass an existing image URL directly:

const output_url = (await wavespeed.run(
  "wavespeed-ai/image-upscaler",
  { image: "https://example.com/photo.jpg" }
))["outputs"][0];

API Endpoint

Model ID: wavespeed-ai/image-upscaler

Upscale an image to a higher resolution.

Parameters

Parameter	Type	Required	Default	Description
image	string	Yes	--	URL of the image to upscale
target_resolution	string	No	4k	Target resolution. One of: 2k, 4k, 8k
output_format	string	No	jpeg	Output format. One of: jpeg, png, webp

Example

import wavespeed from 'wavespeed';

const imageUrl = await wavespeed.upload("/path/to/photo.png");

const output_url = (await wavespeed.run(
  "wavespeed-ai/image-upscaler",
  {
    image: imageUrl,
    target_resolution: "8k",
    output_format: "png"
  }
))["outputs"][0];

Advanced Usage

Sync Mode

Use sync mode for a single request that waits for the result without polling:

const output_url = (await wavespeed.run(
  "wavespeed-ai/image-upscaler",
  { image: imageUrl },
  { enableSyncMode: true }
))["outputs"][0];

Custom Client with Retry Configuration

import { Client } from 'wavespeed';

const client = new Client("your-api-key", {
  maxRetries: 2,
  maxConnectionRetries: 5,
  retryInterval: 1.0,
});

const output_url = (await client.run(
  "wavespeed-ai/image-upscaler",
  { image: imageUrl, target_resolution: "4k" }
))["outputs"][0];

Error Handling with runNoThrow

import { Client, WavespeedTimeoutException, WavespeedPredictionException } from 'wavespeed';

const client = new Client();
const result = await client.runNoThrow(
  "wavespeed-ai/image-upscaler",
  { image: imageUrl }
);

if (result.outputs) {
  console.log("Upscaled image URL:", result.outputs[0]);
  console.log("Task ID:", result.detail.taskId);
} else {
  console.log("Failed:", result.detail.error.message);
  if (result.detail.error instanceof WavespeedTimeoutException) {
    console.log("Request timed out - try increasing timeout");
  } else if (result.detail.error instanceof WavespeedPredictionException) {
    console.log("Prediction failed");
  }
}

Pricing

$0.01 per image (all resolutions).

Security Constraints

• No arbitrary URL loading: Only use image URLs from trusted sources. Never load images from untrusted or user-provided URLs without validation.
• API key security: Store your WAVESPEED_API_KEY securely. Do not hardcode it in source files or commit it to version control. Use environment variables or secret management systems.
• Input validation: Only pass parameters documented above. Validate image URLs before sending requests.