> For the complete documentation index, see [llms.txt](https://docs.flora.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flora.ai/models/image-models/flux-redux-by-black-forest-labs.md).

# Flux Redux (by Black Forest Labs)

### **Overview**

Image variation model for slight modifications of input images.

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### **Quick facts**

* **Modes:** Image → Image
* **Default output / size:** Auto (preserves input aspect)
* **Aspect ratios:** Auto + multiple resolution options

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### **What it's great for**

* Creating subtle variations of existing images
* Iterative refinement workflows
* Maintaining overall composition while varying details
* Quick image alternatives

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### Parameters

| Control           | Type   | Default | Notes                           |
| ----------------- | ------ | ------- | ------------------------------- |
| `Reference Image` | Upload | —       | Input image to vary (required)  |
| `Quality`         | Slider | 100     | 0-100                           |
| `Size`            | Select | Auto    | Auto, 16:9, 4:3, 1:1, 3:4, 9:16 |

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### **Modes**

| Mode          | Estimated time | Required inputs | Typical use     |
| ------------- | -------------: | --------------- | --------------- |
| Image → Image |          \~28s | Image           | Image variation |

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### **Output options**

| Option       | Values / notes                                         |
| ------------ | ------------------------------------------------------ |
| Aspect ratio | Auto (preserves input) + multiple aspect ratio options |

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### **Prompt tips**

* No prompt required—model creates variations automatically
* Lower guidance scale produces more variation
* Higher guidance scale stays closer to input
* Useful for generating alternatives quickly

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### **Safety**

Moderation may be applied according to platform rules — avoid disallowed content.

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