---
title: stable-diffusion-v1-5-img2img
description: Stable Diffusion is a latent text-to-image diffusion model capable of generating photo-realistic images. Img2img generate a new image from an input image with Stable Diffusion. 
image: https://developers.cloudflare.com/dev-products-preview.png
---

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![RunwayML logo](https://developers.cloudflare.com/_astro/runway.Cq8Cjov4.svg) 

#  stable-diffusion-v1-5-img2img Beta 

Text-to-Image • RunwayML 

`@cf/runwayml/stable-diffusion-v1-5-img2img` 

Stable Diffusion is a latent text-to-image diffusion model capable of generating photo-realistic images. Img2img generate a new image from an input image with Stable Diffusion. 

| Model Info        |                                                                          |
| ----------------- | ------------------------------------------------------------------------ |
| Terms and License | [link ↗](https://github.com/runwayml/stable-diffusion/blob/main/LICENSE) |
| More information  | [link ↗](https://huggingface.co/runwayml/stable-diffusion-v1-5)          |
| Beta              | Yes                                                                      |
| Unit Pricing      | $0.00 per step                                                           |

## Usage

* [  TypeScript ](#tab-panel-5288)
* [  curl ](#tab-panel-5289)

```
export interface Env {  AI: Ai;}
export default {  async fetch(request, env): Promise<Response> {
    // Picture of a dog    const exampleInputImage = await fetch(      "https://pub-1fb693cb11cc46b2b2f656f51e015a2c.r2.dev/dog.png"    );
    const inputs = {      prompt: "Change to a lion",      image: [...new Uint8Array(await exampleInputImage.arrayBuffer())],    };
    const response = await env.AI.run(      "@cf/runwayml/stable-diffusion-v1-5-img2img",      inputs    );
    return new Response(response, {      headers: {        "content-type": "image/png",      },    });  },} satisfies ExportedHandler<Env>;
```

Terminal window

```
curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run/@cf/runwayml/stable-diffusion-v1-5-img2img  \  -X POST  \  -H "Authorization: Bearer $CLOUDFLARE_API_TOKEN"  \  -d '{ "prompt": "cyberpunk cat" }'
```

## Parameters

* [ Input ](#tab-panel-5290)
* [ Output ](#tab-panel-5291)

prompt

`string`requiredminLength: 1A text description of the image you want to generate

negative\_prompt

`string`Text describing elements to avoid in the generated image

height

`integer`minimum: 256maximum: 2048The height of the generated image in pixels

width

`integer`minimum: 256maximum: 2048The width of the generated image in pixels

▶image\[\]

`array`For use with img2img tasks. An array of integers that represent the image data constrained to 8-bit unsigned integer values

image\_b64

`string`For use with img2img tasks. A base64-encoded string of the input image

▶mask\[\]

`array`An array representing An array of integers that represent mask image data for inpainting constrained to 8-bit unsigned integer values

num\_steps

`integer`default: 20maximum: 20The number of diffusion steps; higher values can improve quality but take longer

strength

`number`default: 1A value between 0 and 1 indicating how strongly to apply the transformation during img2img tasks; lower values make the output closer to the input image

guidance

`number`default: 7.5Controls how closely the generated image should adhere to the prompt; higher values make the image more aligned with the prompt

seed

`integer`Random seed for reproducibility of the image generation

 The binding returns a `ReadableStream` with the output (check the model's output schema). 

## API Schemas (Raw)

Input [ ](https://developers.cloudflare.com/workers-ai/models/stable-diffusion-v1-5-img2img/schema-input.json "Open") [ ](https://developers.cloudflare.com/workers-ai/models/stable-diffusion-v1-5-img2img/schema-input.json "Download") 

Output [ ](https://developers.cloudflare.com/workers-ai/models/stable-diffusion-v1-5-img2img/schema-output.json "Open") [ ](https://developers.cloudflare.com/workers-ai/models/stable-diffusion-v1-5-img2img/schema-output.json "Download")

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```