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AI & LLM

AI Image Generation Request & Response JSON Example

A JSON example of a text-to-image generation request and response — includes the prompt, size, model, and returned image URLs. Copy-ready for DALL·E and image generation APIs.

{
  "created": 1716902400,
  "data": [
    {
      "url": "https://oaidalleapi.example.com/img/abc123.png",
      "revised_prompt": "A minimalist logo of a fox reading JSON, flat vector style, blue accent."
    }
  ]
}

Field Reference

createdrequiredintegerUnix timestamp of generation
datarequiredarray<object>One entry per generated image (n controls how many)
data[].urloptionalstringTemporary URL to the image; expires, so download promptly. Absent if b64_json was requested
data[].b64_jsonoptionalstringBase64-encoded image bytes when response_format is b64_json
data[].revised_promptoptionalstringThe prompt after the model's automatic rewriting

Variants

Generation requestDescribe the image, choose a size and how many to generate.
{
  "model": "dall-e-3",
  "prompt": "A minimalist logo of a fox reading JSON, flat vector style, blue accent.",
  "size": "1024x1024",
  "quality": "standard",
  "n": 1,
  "response_format": "url"
}

Common Use Cases

  • →Generating marketing images, avatars, or icons from text prompts
  • →Building a creative tool that turns descriptions into pictures
  • →Producing image variations or assets programmatically
image generationdall-etext to imageai imagesgenerative ai

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Frequently Asked Questions

Use 'url' for quick previews, but the URL expires (often within an hour), so download and store the image if you need it long-term. Use 'b64_json' to receive the raw bytes inline and avoid a second download request, at the cost of a much larger JSON payload.

Some models automatically rewrite your prompt to add detail and safety. revised_prompt shows the actual prompt used, which is useful for debugging why an image looks the way it does and for reproducing results.

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