Futuristické rozhraní s AI nástroji Midjourney, DALL·E a Leonardo AI zobrazenými jako digitální panely v kreativním studiu.

How to create your own images with AI: Midjourney, DALL·E and Leonardo AI


🎨 What is AI image generator?

An AI image generator is a tool that creates an original image based on a text input (so-called prompt).
Just describe what you want to see – and within seconds you will get the digital output you want.

🔧 The most popular image generation tools in 2025

ToolAccessAdvantage
MidjourneyDiscord (paid)Artistic style, high aesthetics
DALL·E 3ChatGPT (Plus version)Accuracy, ease of use
Leonardo AIWebsite (free + credits)Various styles, user galleries, models

🧾 Where and how to start

🔹 Mid-journey

🔹 DALL·E 3

🔹 Leonardo AI

  • Registration on https://app.leonardo.ai
  • Free daily credits, upgrade option
  • Model selection (e.g. Realistic Vision, Leonardo Style)
  • Generation via an intuitive interface

✍️ How to write a good prompt

Prompt is an instruction for AI – the more precise and detailed, the better the result.

📌 Recommended prompt structure:

[main theme], [style], [color], [composition], [camera/angle], [lighting], [quality]

💡 Negative prompt (optional, for clean output):

no text, no watermark, no blur, no distortion

🧪 Sample prompts for each tool

Mid-journey prompt

futuristic samurai standing on rooftop at night, glowing neon armor, cyberpunk city background, cinematic lighting, ultra detailed, concept art –v 6 –ar 16:9

DALL·E 3 prompt

A futuristic samurai in glowing armor standing on a rooftop, with a cyberpunk city skyline in the background, cinematic lighting, concept art style, high detail

A futuristic samurai in glowing armor stands on a rooftop at night, overlooking a neon-lit cyberpunk city skyline.

Leonardo AI prompt

Futuristic samurai with glowing neon armor on rooftop at night, cyberpunk cityscape, concept art style, 4K render, high detail, cinematic atmosphere

A futuristic samurai in glowing armor stands on a rooftop at night, overlooking a neon-lit cyberpunk city skyline.

📌 These prompts are tailored to the capabilities of each tool, but will visually lead to a comparable result.

💡 Tips for better results

  • Write in English – most AI models understand English best
  • Avoid vague terms. (e.g. "cool", "nice"), be specific
  • Work with variations – try different angles, light, environment
  • Use a negative prompt – removes unwanted elements (e.g. text, artifacts)
  • Get inspired in the galleries – Leonardo has a strong community section

🖼️ Summary

ToolBest suited for…
MidjourneyArtistic stylizations, atmosphere
DALL·E 3Precise input, ease of use
Leonardo AICreative control, illustration, details

📌 Try them all and find out which one suits you best - AI image generation is fast, fun, and with a little practice, very accurate.

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