> 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/creative/bloom-2.md).

# Bloom 2

Higher-quality creative upscaling for GenAI images with new, reimagined detail

<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%2FzYcRJaeJpXlBpCcGuz2Q%2FBloom2_Generated_Image_December_16_2025_-_10_17AM_slider.jpg?alt=media&#x26;token=508b165b-62d2-4eed-adc8-5113ee9c5c8e">https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2FzYcRJaeJpXlBpCcGuz2Q%2FBloom2_Generated_Image_December_16_2025_-_10_17AM_slider.jpg?alt=media&#x26;token=508b165b-62d2-4eed-adc8-5113ee9c5c8e</a></td><td><a href="https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FGenerated%20Image%20December%2016%2C%202025%20-%2010_17AM%20copy.png&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FGenerated%20Image%20December%2016%2C%202025%20-%2010_17AM-bloom-2.png&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FGenerated%20Image%20December%2016%2C%202025%20-%2010_17AM%20copy.png&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2FGenerated%20Image%20December%2016%2C%202025%20-%2010_17AM-bloom-2.png&#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%2Fsk2t3zkackViC2EzCkIV%2FBloom2_cbot_Im_not_able_to_shorten_or_reformat_this_prompt_--chaos__750b9857-acd0-4d8b-b9c9-85f62169eb78_2_slider.jpg?alt=media&#x26;token=159bcbb9-7bec-4ff3-8199-63fa3c91b093">https://4007072434-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJkSwaYgAsTQke14gpXAF%2Fuploads%2Fsk2t3zkackViC2EzCkIV%2FBloom2_cbot_Im_not_able_to_shorten_or_reformat_this_prompt_--chaos__750b9857-acd0-4d8b-b9c9-85f62169eb78_2_slider.jpg?alt=media&#x26;token=159bcbb9-7bec-4ff3-8199-63fa3c91b093</a></td><td><a href="https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fcbot_Im_not_able_to_shorten_or_reformat_this_prompt._--chaos__750b9857-acd0-4d8b-b9c9-85f62169eb78_2%20copy.png&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fcbot_Im_not_able_to_shorten_or_reformat_this_prompt._--chaos__750b9857-acd0-4d8b-b9c9-85f62169eb78_2-bloom-2.png&#x26;src2label=After&#x26;zoom=1">https://compare.topazlabs.com/share/image?src1=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fcbot_Im_not_able_to_shorten_or_reformat_this_prompt._--chaos__750b9857-acd0-4d8b-b9c9-85f62169eb78_2%20copy.png&#x26;src1label=Before&#x26;src2=https%3A%2F%2Fdownloads.topazlabs.com%2Fweb-assets%2Fmodel-examples%2Fcbot_Im_not_able_to_shorten_or_reformat_this_prompt._--chaos__750b9857-acd0-4d8b-b9c9-85f62169eb78_2-bloom-2.png&#x26;src2label=After&#x26;zoom=1</a></td></tr></tbody></table>

### Model Overview

**Bloom 2** is our creative upscaler for native GenAI content: AI artwork, illustrations, and CG renders. It enhances quality while introducing new detail, texture, and visual elements, with the range to subtly refine the source or substantially reimagine it.

Compared to earlier creative upscaling, it significantly reduces hallucinations like extra fingers and distorted anatomy, and improves skin and facial detail. Lower creativity stays closer to the source; higher creativity takes more liberty.

### Best Use Cases

* **AI artwork and illustrations.** Add rich new detail and texture to generated images.
* **GenAI portraits.** Fix plastic skin and flat facial detail.
* **CG renders.** Upscale renders with added realism.
* **Creative exploration.** Push creativity up for bold reinterpretations.
* **Color-accurate upscaling.** Keep source colors while adding detail.

### Endpoint

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

### Model Parameters

| Parameter           | Type      | Required / Default                            | Accepted values | Description                                                                                                                |
| ------------------- | --------- | --------------------------------------------- | --------------- | -------------------------------------------------------------------------------------------------------------------------- |
| `model`             | `string`  | Required                                      | `"Bloom 2"`     | —                                                                                                                          |
| `autoprompt`        | `boolean` | <p>Optional<br>Default: <code>true</code></p> | —               | Automatically generates a prompt describing the image.                                                                     |
| `colorPreservation` | `boolean` | <p>Optional<br>Default: <code>true</code></p> | —               | Keeps the source image's colors while new detail is added.                                                                 |
| `creativity`        | `integer` | <p>Optional<br>Default: <code>3</code></p>    | `1` to `9`      | How strongly the model transforms the image. Higher values add more new detail and are more likely to introduce artifacts. |
| `prompt`            | `string`  | <p>Optional<br>Default: <code>""</code></p>   | —               | Text describing the image or the result you want.                                                                          |
| `seed`              | `integer` | <p>Optional<br>Default: <code>2</code></p>    | —               | Seed for repeatable results.                                                                                               |

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

### Model Pricing

**Bloom 2** costs 1 credit per every 2 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      | 2       |
| 2560×1440  | 1440p                | 3.69      | 2       |
| 3840×2160  | 4K UHD               | 8.29      | 5       |
| 4000×3000  | 12 MP phone          | 12.00     | 6       |
| 5472×3648  | 20 MP camera         | 19.96     | 10      |
| 6000×4000  | 24 MP camera         | 24.00     | 12      |
| 7680×4320  | 8K UHD               | 33.18     | 17      |
| 7952×5304  | 42 MP camera         | 42.18     | 22      |
| 8192×5464  | 45 MP camera         | 44.76     | 23      |
| 9504×6336  | 61 MP camera         | 60.22     | 31      |
| 11648×8736 | 100 MP medium format | 101.76    | 51      |

| Output MP | 1 | 4 | 8 | 16 | 24 | 32 | 40 |
| --------- | - | - | - | -- | -- | -- | -- |
| Credits   | 1 | 2 | 4 | 8  | 12 | 16 | 20 |

{% 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=Bloom 2" \
  -F "creativity=3" \
  -F "colorPreservation=true"
```

{% 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", "Bloom 2");
form.append("creativity", "3");
form.append("colorPreservation", "true");

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": "Bloom 2",
            "creativity": "3",
            "colorPreservation": "true"
        },
    )

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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