> 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-2-by-black-forest-labs.md).

# Flux 2 (by Black Forest Labs)

### **Overview**

Updated BFL model with high customizability and acceleration options.

***

### **Quick facts**

* **Modes:** Text → Image · Image → Image (editing)
* **Default output / size:** 1024×1024 (1:1)
* **Aspect ratios:** Multiple standard ratios supported

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

* Fast, customizable image generation.
* Acceleration options for speed optimization.
* Cost-effective high-quality outputs.
* Both generation and editing workflows.

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### Parameters

| Control        | Type     | Default | Notes                                   |
| -------------- | -------- | ------- | --------------------------------------- |
| `Prompt`       | Text     | —       | Natural-language instruction (required) |
| `Aspect Ratio` | Dropdown | 1:1     | Multiple options available              |
| `Acceleration` | Dropdown | Regular | None, Regular, High                     |
| `Quality`      | Slider   | 40      | Inference steps (10-40)                 |

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### **Modes**

| Mode          | Estimated time | Required inputs | Typical use     |
| ------------- | -------------: | --------------- | --------------- |
| Text → Image  |           \~8s | Prompt          | Fast generation |
| Image → Image |          \~10s | Image, Prompt   | Quick editing   |

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### **Output options**

| Option       | Values / notes                   |
| ------------ | -------------------------------- |
| Aspect ratio | Multiple aspect ratios supported |

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### **Prompt tips**

* Use acceleration options to optimize for speed vs quality.
* Model handles a wide range of styles effectively.
* Good balance of speed and quality for iterative workflows.

***


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