Bulk AI Image Generator

by Matt Zimmerman

Updated April 27, 2024

Have you ever wanted to generate hundreds, thousands, or even tens of thousands of images with a single click of a button?

Well now you can, using ZimmWriter’s Bulk AI Image generator!

Here is what the interface looks like:

Now let me explain how to use it.

List Up to 1,000 Blog Titles or URLs

The first thing you need to enter is a list of blog post titles or URLs. You can mix and match, just make sure that everything is on its own line.

If you do decide to input URLs, then be aware that ZimmWriter will visit the URL and summarize the content on the webpage. As a default, ZimmWriter uses your own IP address to do this but sometimes the webpage tries to block you. In that case, you’ll need to link up a ScrapeOwl API into ZimmWriter.

Prompt to Generate the AI Image Prompt

In this box, you’ll want to type in your prompt.


The prompt you type into this box is NOT a prompt telling the AI to generate an image.

Instead, the prompt you type in this box should tell the AI to create ANOTHER prompt that we will then use to generate the image.

Here is an example of a prompt you could put in that box:

Write a prompt to generate an image, without text, for a blog post about: {title} on the subtopic of {subheading}. Use detailed visual language that is specific. No text or words in the image. Make the prompt less than 35 words.

Notice how we’re not telling the AI to generate an image, but instead telling it to generate a prompt?

Let me explain it in steps because that might help:

  • Step 1: You enter a prompt that says “Write a prompt to generate an image…”
  • Step 2: You press the “Create AI Images in Bulk” button.
  • Step 3: ZimmWrtiter (behind the scenes) takes the prompt you entered and sends it to OpenAI to generate a second prompt. For a title “how to wash a cat”, the second prompt might end up being “Create an image showing a person gathering cat-safe shampoo, towels, a non-slip mat, and a gentle brush, preparing to wash a cat in a bathroom setting.”
  • Step 4: ZimmWriter (behind the scenes) takes the second prompt and now sends it to the AI image model (e.g., Dall-E or Stable Diffusion) to generate the AI image.

So just to recap. If you enter the prompt telling the AI to generate an image, then it will likely fail. You need to tell it to generate a prompt.

Prompt Placeholders

In the prompt above, and the “default” prompt (found in the menu dropdown titled Load Possible Existing Saved Prompt) has two placeholders in it.

The first placeholder is {title} and the second placeholder is {subheading}.

You have to include {title} in your prompt as ZimmWriter will dynamically replace it with the title for your input behind the scenes.

You should also include {subheading} somewhere in the prompt as ZimmWriter will generate some key points for the title or URL it summarizes and use those to help give the images variety. If you leave {subheading} out, then many of your images will appear similar.

Load Possible Existing Saved Prompt

Use the dropdown to load the default prompt, or any other existing saved prompts you might have created.

Want to save a new prompt in the “default override” slot or one of your wordpress website slots? Then go to the main ZimmWriter options menu and click on “Set AI Image Prompt”. You can also read more about creating AI image prompts.

GPT Model

You can also choose the model which ZimmWriter uses to take your prompt and generate the second prompt (discussed above).

Image Model

You need to specify an image model to generate your AI images. You can read more about each of the models in our AI image model guide.

I also have a handy video about creating AI images inside of ZimmWriter.

# of Images Per Title/URL

Select the number of images you want for each title and/or URL.

The limit is 15, but you can get more if you want, by simply copy-pasting the title or URL multiple times in the input box.

Compress Images

The default inside of ZimmWriter is to compress AI images. So when the images are uploaded to WordPress, the file size is very small and the quality is still very high.

But I disabled the default compression for the Bulk Image Generator and now allow you to manually enable it. Usually, a non-compressed image will be 2-4mb while a compressed image is about 100kb.

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