> For the complete documentation index, see [llms.txt](https://developer.topazlabs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.topazlabs.com/image-models/upscaling-and-enhancement/generative/wonder-3.5.md).

# Wonder 3.5

Highest-quality generative upscaling for images with greater detail, precision, and realism

<table data-card-size="large" data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center">Click to view</td><td><a href="https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2F0YGbp7730I0YAPUQc6Ce%2FWonder35_019f5d41-1fa8-77e9-8a42-934e47622648_slider.jpg?alt=media&#x26;token=ac6a9d0d-7260-4b26-9d54-e00b6bc3e18b">https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2F0YGbp7730I0YAPUQc6Ce%2FWonder35_019f5d41-1fa8-77e9-8a42-934e47622648_slider.jpg?alt=media&#x26;token=ac6a9d0d-7260-4b26-9d54-e00b6bc3e18b</a></td><td><a href="https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2F019f5d41-1fa8-77e9-8a42-934e47622648.jpg&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2F019f5d41-1fa8-77e9-8a42-934e47622648-wonder3.5.jpg&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2F019f5d41-1fa8-77e9-8a42-934e47622648.jpg&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2F019f5d41-1fa8-77e9-8a42-934e47622648-wonder3.5.jpg&#x26;src2label=After&#x26;zoom=1</a></td></tr><tr><td align="center">Click to view</td><td><a href="https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2FGdlznUNfoJDn0xFUTTpI%2FWonder35_pexels-tim-yisa-1040794498-20452012_slider.jpg?alt=media&#x26;token=ed85d5f1-4efb-4c42-8f62-7e8576d141e4">https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2FGdlznUNfoJDn0xFUTTpI%2FWonder35_pexels-tim-yisa-1040794498-20452012_slider.jpg?alt=media&#x26;token=ed85d5f1-4efb-4c42-8f62-7e8576d141e4</a></td><td><a href="https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fpexels-tim-yisa-1040794498-20452012.jpg&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fpexels-tim-yisa-1040794498-20452012-wonder3.5.jpg&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fpexels-tim-yisa-1040794498-20452012.jpg&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fpexels-tim-yisa-1040794498-20452012-wonder3.5.jpg&#x26;src2label=After&#x26;zoom=1</a></td></tr><tr><td align="center">Click to view</td><td><a href="https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2FEJwgdpydyHjMHo2AeEVU%2FWonder35_OutdoorLifestyleProductPhotographyLosAngelesPhotographerBrianBrown-2_slider.jpg?alt=media&#x26;token=0979ce11-3631-446e-b24c-56738d0f984b">https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2FEJwgdpydyHjMHo2AeEVU%2FWonder35_OutdoorLifestyleProductPhotographyLosAngelesPhotographerBrianBrown-2_slider.jpg?alt=media&#x26;token=0979ce11-3631-446e-b24c-56738d0f984b</a></td><td><a href="https://compare.topazlabs.com/share/image?src1=https://downloads.topazlabs.com/web-assets/model-examples/bella-vita-skai-aquatic.jpg&#x26;src1label=Before&#x26;src2=https://downloads.topazlabs.com/web-assets/model-examples/bella-vita-skai-aquatic-wonder3.5.jpg&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/image?src1=https://downloads.topazlabs.com/web-assets/model-examples/bella-vita-skai-aquatic.jpg&#x26;src1label=Before&#x26;src2=https://downloads.topazlabs.com/web-assets/model-examples/bella-vita-skai-aquatic-wonder3.5.jpg&#x26;src2label=After&#x26;zoom=1</a></td></tr></tbody></table>

### Model Overview

Wonder 3.5 is an updated generative upscaling model designed to deliver higher levels of detail, precision, and natural realism across a wide range of image types. It supports both high-quality inputs and heavily degraded or compressed images, with selectable Low, Medium, and High enhancement levels for greater control across varying input conditions.

Building on Wonder 3, Wonder 3.5 produces finer detail with fewer repetitive patterns and improved handling of visual noise. It also delivers greater precision when enhancing structured graphics such as tables and charts, while maintaining strong performance across portraits, landscapes, wildlife, and complex textures.

### Best Use Cases

* **Any real-world photo.** The best default for images with a mix of noise, softness, or compression.
* **Low-resolution and compressed images.** Transformative enhancement with clearer detail and sharper text.
* **Portraits, landscapes, and wildlife.** Natural skin, foliage, fur, and texture at higher resolution.
* **Charts, tables, and documents.** More precise reconstruction of structured graphics.
* **One-request pipelines.** Replace separate denoise, sharpen, and upscale steps with one call.

### Endpoint

`https://api.topazlabs.com/image/v1/enhance-gen/async`

### Model Parameters

| Parameter             | Type     | Required / Default                            | Accepted values               | Description                                                                       |
| --------------------- | -------- | --------------------------------------------- | ----------------------------- | --------------------------------------------------------------------------------- |
| `model`               | `string` | Required                                      | `"Wonder 3.5"`                | —                                                                                 |
| `enhancementStrength` | `string` | <p>Optional<br>Default: <code>high</code></p> | `"low"`, `"medium"`, `"high"` | How much the model enhances the image. Use lower levels for high-quality sources. |

For request parameters shared by every image endpoint, see Request Parameters. The full schema is also available in our API Reference page.

### Model Pricing

**Wonder 3.5** costs 1 credit per every 8 MP of generated output. The below table includes a list of common output resolutions with associated credit costs.

| Resolution | Typical Source       | Output MP | Credits |
| ---------- | -------------------- | --------- | ------- |
| 640×480    | VGA                  | 0.31      | 1       |
| 1280×720   | 720p                 | 0.92      | 1       |
| 1920×1080  | 1080p                | 2.07      | 1       |
| 2560×1440  | 1440p                | 3.69      | 1       |
| 3840×2160  | 4K UHD               | 8.29      | 2       |
| 4000×3000  | 12 MP phone          | 12.00     | 2       |
| 5472×3648  | 20 MP camera         | 19.96     | 3       |
| 6000×4000  | 24 MP camera         | 24.00     | 3       |
| 7680×4320  | 8K UHD               | 33.18     | 5       |
| 7952×5304  | 42 MP camera         | 42.18     | 6       |
| 8192×5464  | 45 MP camera         | 44.76     | 6       |
| 9504×6336  | 61 MP camera         | 60.22     | 8       |
| 11648×8736 | 100 MP medium format | 101.76    | 13      |

| Output MP | 1 | 4 | 8 | 16 | 24 | 32 | 40 |
| --------- | - | - | - | -- | -- | -- | -- |
| Credits   | 1 | 1 | 1 | 2  | 3  | 4  | 5  |

{% hint style="info" %}
For more accurate credit cost estimates, we recommend using our [Credit Calculator](https://developer.topazlabs.com/credit-calculator).
{% endhint %}

### Example Request

{% tabs %}
{% tab title="cURL" %}

```bash
curl -X POST "https://api.topazlabs.com/image/v1/enhance-gen/async" \
  -H "X-API-Key: $TOPAZ_API_KEY" \
  -F "image=@photo.jpg" \
  -F "model=Wonder 3.5" \
  -F "enhancementStrength=high"
```

{% endtab %}

{% tab title="JavaScript" %}

```javascript
import fs from 'fs';
import FormData from 'form-data';

const form = new FormData();
form.append("image", fs.createReadStream("photo.jpg"));
form.append("model", "Wonder 3.5");
form.append("enhancementStrength", "high");

const response = await fetch("https://api.topazlabs.com/image/v1/enhance-gen/async", {
  method: 'POST',
  headers: {
    'X-API-Key': process.env.TOPAZ_API_KEY,
    ...form.getHeaders(),
  },
  body: form,
});

if (!response.ok) {
  throw new Error(`Request failed: ${response.status} ${await response.text()}`);
}

console.log(await response.json());
```

{% endtab %}

{% tab title="Python" %}

```python
import os
import requests

with open("photo.jpg", "rb") as image:
    response = requests.post(
        "https://api.topazlabs.com/image/v1/enhance-gen/async",
        headers={"X-API-Key": os.environ["TOPAZ_API_KEY"]},
        files={"image": image},
        data={
            "model": "Wonder 3.5",
            "enhancementStrength": "high"
        },
    )

response.raise_for_status()
print(response.json())
```

{% endtab %}
{% endtabs %}

### Limitations

This model accepts up to 256 MP input and output.

### Helpful Resources

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><i class="fa-play">:play:</i></td><td><h4>Image Quickstart</h4></td><td>Quickly get started with our Image API.</td><td></td></tr><tr><td><i class="fa-codepen">:codepen:</i></td><td><h4>Model Playground</h4></td><td>Test and create with our models.</td><td><a href="https://playground.topazlabs.com/">https://playground.topazlabs.com/</a></td></tr><tr><td><i class="fa-square-root-variable">:square-root-variable:</i></td><td><h4>Credit Calculator</h4></td><td>Pricing for specific outputs, batches, and more.</td><td></td></tr></tbody></table>


---

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