# How to create images with AI: a guide for beginners (ChatGPT and Gemini)

> Learn to create images with AI using ChatGPT and Gemini. Step-by-step guide for beginners, with tips for writing effective prompts and getting better results.

- Source: https://doutorai.pt/en/blog/how-to-create-images-with-ai
- Author: Miguel Diamond (https://doutorai.pt/en/author/miguel)
- Category: AI for Beginners
- Published: Jun 30, 2026
- Site: Doutor AI (https://doutorai.pt/en) - AI tools for small businesses

## Quick answer
To create images with AI, you just write a text description (called a prompt) and the tool generates the image automatically. Tools like ChatGPT (with GPT Image) and Google's Gemini let you do it easily, with no technical experience. The more detailed and specific the description, the closer the generated image will be to what you imagine.

- Just write a text description to generate an image with AI
- ChatGPT and Gemini are good options for beginners, with free access
- The quality of the result depends directly on the quality of the prompt
- Generated images can be used on social media, blogs, and presentations

## How does AI image generation work?

Creating images with artificial intelligence is simpler than it seems. Describe what you want to see, in normal language, and the tool creates the image automatically. You do not need to know how to draw, use Photoshop, or have any technical knowledge. In seconds, you can have an original image created exactly for your case.

The text you write to describe the image is called a prompt. It is the same concept we use when we ask ChatGPT for text. If you are not familiar with the concept yet, read our article [what is a prompt](https://doutorai.pt/en/blog/what-is-a-prompt).

## The main tools available

  
    ToolWhere to accessStrengthsFree plan?
  
  
    ChatGPT (GPT Image)chat.openai.comHigh-quality photorealistic imagesLimited
    Gemini (Google)gemini.google.comIntegrated with Google WorkspaceYes
    Adobe Fireflyfirefly.adobe.comSafe for commercial use, editorial styleYes (monthly credits)
    Microsoft Designerdesigner.microsoft.comEasy to use, integrated with Windows and OfficeYes
    Midjourneymidjourney.comVery high artistic qualityNo (paid)
  

*Prices and plans may change. Always confirm on the official website of each tool as of the date you read this article.*

## How to create an image with ChatGPT

If you already use ChatGPT, creating images is very simple:

  - Open ChatGPT and start a new conversation.

  - Write something like: 'Create an image of [your description].'

  - ChatGPT will generate the image directly in the conversation, in a few seconds.

  - If you do not like the result, ask for adjustments: 'Make the same image but with a white background and a more minimalist tone.'

  - When you are happy with it, right-click to save the image.

ChatGPT uses the GPT Image model to generate images, which produces photorealistic, high-quality results. It is especially good for product images, lifestyle photography, and creative compositions. If you do not use ChatGPT yet, see our guide [how to use ChatGPT](https://doutorai.pt/en/blog/how-to-use-chatgpt).

## How to create an image with Gemini

Google's Gemini also generates images in a simple, intuitive way:

  - Go to gemini.google.com and sign in with your Google account.

  - Write your description. Example: 'A photograph of a modern café in Lisbon, with natural light, minimalist style, and green plants.'

  - Gemini generates several options to choose from. You can ask for variations or refinements.

  - Click on the image you prefer to save it or share it.

One advantage of Gemini is that you can use it directly from Gmail, Google Docs, or Google Slides, without leaving the tools you already use every day. If you work a lot in the Google ecosystem, it is a very practical integration.

## How to write effective prompts for images

The quality of the prompt directly determines the quality of the image. Here are the most important tips:

  - **Be specific about the subject:** instead of 'a dog', write 'a young golden retriever running on a beach at sunset, golden sand, warm light'.

  - **Indicate the visual style:** photorealistic, illustration, watercolor, minimalist, vintage, flat design, cartoon, etc.

  - **Describe the light and setting:** natural light, studio, white background, cozy interior, urban outdoors, etc.

  - **Specify the composition:** close-up, wide shot, aerial view, centered framing, rule of thirds.

  - **Try several versions:** ask for 3 or 4 variations and pick the one closest to what you have in mind.

For more tips on writing prompts in general, visit our [prompt library](https://doutorai.pt/en/prompts).

## Practical uses for your business

AI-generated images can be used in many day-to-day business situations:

  - Images for social media posts (Instagram, Facebook, LinkedIn)

  - Illustrations for blog articles or newsletters

  - Product mockups for client presentations

  - Banners for email marketing campaigns

  - Cover images for presentations and proposals

  - Visual content for your website without needing a photographer

AI does not replace professional photography in every context, but it is a very practical and affordable solution for day-to-day needs, especially for small businesses with limited resources.

If you want to go deeper into using AI in your business in general, see our guide [AI for beginners](https://doutorai.pt/en/blog/ai-for-beginners) and find out how other tools can help you save time and grow.

## Frequently asked questions

### Do AI-generated images have copyright?

This is a legal area that is still evolving. In general, images generated by AI do not have copyright protection in the same way human works do. Check the terms of service of each platform, especially for commercial use.

### Can I use AI-generated images for my business?

It depends on the terms of service of each tool. Most paid plans allow commercial use. Always confirm in each platform's terms before using the images in advertising or commercial materials.

### Do the generated images look realistic?

It depends on the tool and the prompt. ChatGPT with GPT Image produces very realistic images. Other tools have more artistic styles. The more detailed the prompt, the more controlled the result.

### Can I edit an AI-generated image?

Yes. You can ask the AI to change elements of the image by describing what you want to change. You can also export the image and edit it in programs like Canva or Photoshop.

### What is the best free tool for creating images with AI?

Google's Gemini has a generous free plan and is easy to use if you have a Google account. Microsoft Designer is also free and easy to access. ChatGPT has a free plan with limits on image generation. Try both and see which one you prefer.


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Content by Doutor AI (https://doutorai.pt/en). When quoting, please cite the source: https://doutorai.pt/en/blog/how-to-create-images-with-ai