> 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/gpt-image-1.5-by-openai.md).

# GPT Image 1.5 (by OpenAI)

### **Overview**

High-fidelity image generation with strong prompt adherence and transparent background support.

***

### **Quick facts**

* **Modes:** Text → Image · Image → Image (editing)
* **Default output / size:** 1024×1024 (1:1)
* **Aspect ratios:** 3:2, 1:1, 2:3

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

* Premium quality image generation with precise control.
* Images with transparent backgrounds for design assets.
* Strong prompt adherence for detailed specifications.
* High-fidelity outputs for professional use cases.

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### Parameters

| Control        | Type     | Default | Notes                                   |
| -------------- | -------- | ------- | --------------------------------------- |
| `Prompt`       | Text     | —       | Natural-language instruction (required) |
| `Aspect Ratio` | Dropdown | 1:1     | 3:2, 1:1, 2:3                           |
| `Quality`      | Dropdown | High    | Low, Medium, High                       |
| `Background`   | Dropdown | Auto    | Auto, Transparent, Opaque               |

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### **Modes**

| Mode          | Estimated time | Required inputs | Typical use                  |
| ------------- | -------------: | --------------- | ---------------------------- |
| Text → Image  |          \~30s | Prompt          | High-fidelity generation     |
| Image → Image |          \~35s | Image, Prompt   | Editing with strong fidelity |

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### **Output options**

| Option       | Values / notes            |
| ------------ | ------------------------- |
| Aspect ratio | 3:2, 1:1, 2:3             |
| Background   | Auto, Transparent, Opaque |

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### **Prompt tips**

* Specify composition, lighting, and desired ratio for best results.
* Use "Transparent" background for design assets and icons.
* Model excels at following detailed, specific prompts.

***


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