> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tokenfactory.nebius.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Image generation

For the following example to work, save your [API key](https://docs.tokenfactory.nebius.com/api-reference/introduction#authentication) to the `NEBIUS_API_KEY` environment variable.

Request:

<CodeGroup>
  ```python Python theme={null}
  from openai import OpenAI
  import os

  client = OpenAI(
      base_url="https://api.tokenfactory.nebius.com/v1",
      api_key=os.environ.get("NEBIUS_API_KEY"),
  )

  completion = client.images.generate(
      model="stability-ai/sdxl",
      prompt="An elephant in a desert",
      response_format="b64_json",
      extra_body={
          "response_extension": "png",
          "width": 512,
          "height": 512,
          "num_inference_steps": 30,
          "seed": -1,
          "negative_prompt": "Giraffes, night sky"
      }
  )

  print(completion.to_json())
  ```

  ```bash cURL theme={null}
  curl https://api.tokenfactory.nebius.com/v1/images/generations \
    -H "Authorization: Bearer $NEBIUS_API_KEY" \
    -H "Content-Type: application/json" \
    -d '{
      "model": "stability-ai/sdxl",
      "prompt": "An elephant in a desert",
      "response_format": "b64_json",
      "response_extension": "webp",
      "width": 512,
      "height": 512,
      "num_inference_steps": 30,
      "seed": -1,
      "negative_prompt": "Giraffes, night sky"
    }'
  ```

  ```javascript JavaScript theme={null}
  import OpenAI from "openai";

  const client = new OpenAI({
    baseURL: "https://api.tokenfactory.nebius.com/v1",
    apiKey: process.env.NEBIUS_API_KEY,
  });

  const response = await client.images.generate({
    model: 'black-forest-labs/flux-schnell',
    response_format: 'b64_json',
    width: 1024,
    height: 768,
    response_extension: 'png',
    num_inference_steps: 4,
    negative_prompt:
      'Giraffes, night sky',
    seed: -1,
    prompt: 'An elephant in a desert',
  }).then((completion) => {
    console.log(completion.data);
  });
  ```
</CodeGroup>

<Accordion title="Response">
  <CodeGroup>
    ```Non-verbose Response format: b64_json theme={null}
    {
      "data": [
        {
          "b64_json": "UklGRg66Ag..."
        }
      ],
      "id": "text2img-0941c39c-..."
    }
    ```

    ```Verbose Response format: url theme={null}
    {
      "data": [
        {
          "url": "https://pictures-storage-dev.storage.eu-north1.nebius.cloud/text2img-0941c39c-....webp"
        }
      ],
      "id": "text2img-0941c39c-..."
    }
    ```
  </CodeGroup>
</Accordion>

<Note>
  Save the image once you receive the link. Nebius Token Factory does not store the image from the provided link permanently.
</Note>

For detailed field descriptions, see the [API reference](https://docs.tokenfactory.nebius.com/api-reference/introduction).