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Generating Images with AI: A Beginner's Guide

By the AI Playbook team · Beginner · 25 min read · Last updated: October 13, 2026

Type a description, get a picture. AI image generators can create blog headers, thumbnails, illustrations, and mockups in seconds. This tutorial takes you from your first generation to images you're proud to publish.

A cozy cabin in snow, warm light, illustration
Illustration: your words become the image — the prompt is the paintbrush.

What you'll learn

  1. Pick a free image generator
  2. Learn the image prompt formula
  3. Generate your first images
  4. Fix common problems
  5. Use images responsibly

  1. Pick a free image generator

    Start with a well-known free option: many AI chatbots now include image generation, and dedicated tools offer free daily credits. Sign up, find the "generate image" or "create" button, and you're ready. Don't pay for anything yet — free tiers are plenty for learning.

  2. Learn the image prompt formula

    Good image prompts have four parts: subject (what), style (how it looks), details (lighting, mood, colors), and composition (framing, angle).

    Weak vs strong prompt
    Weak: a cat
    Strong: A fluffy orange tabby cat sitting on a sunny windowsill, cozy watercolor illustration, soft morning light, close-up portrait, warm colors

  3. Generate your first images

    Run the strong prompt above and generate 2–4 variations. Compare them: which lighting do you like? Which composition? Pick a favorite, then generate variations of that one. Try these next:

    Practice prompts
    1. Minimalist logo of a coffee cup with a leaf, flat vector style, green and brown
    2. Futuristic city street at night in the rain, neon signs, cinematic wide shot
    3. Children's book illustration of a friendly robot gardening, pastel colors

  4. Fix common problems

    • Weird hands/faces: add "detailed hands" or regenerate; close-ups are harder than wide shots.
    • Garbled text in the image: keep text minimal — AI still struggles with words inside images. Add text yourself in an editor.
    • Style drift: keep the same style words in every prompt ("watercolor illustration") for a consistent series.
    • Wrong mood: change lighting/mood words first — they steer results more than extra adjectives.

  5. Use images responsibly

    Check your tool's terms for commercial use — most paid tiers allow it, free tiers vary. Don't generate images of real people without consent, don't copy living artists' signature styles for commercial work, and disclose AI use where your platform or client requires it. For client work, keep records of which tool and tier you used.

What it costs

Free tiers give you a daily or monthly batch of generations — enough for a blog, thumbnails, and practice. Paid image plans typically run $10–$30/month for much higher limits. Rule of thumb: upgrade only when you're generating images for real projects weekly, not while experimenting.

Can this make money?

Realistic take: selling raw AI images is nearly impossible — stock sites are flooded and prices are pennies. The money is in finished products: thumbnails for YouTubers ($5–$30 each), social media graphics for small businesses, book covers, or mockups for client pitches. You earn for design judgment and delivery, with AI as your speed tool. Expect $100–$500/month after a few months of consistent client work, not a windfall.

Beginner tips

  • Save prompts that worked — build a personal style library.
  • Generate at the largest size your plan allows; you can shrink, never enlarge.
  • For series (like a children's book), lock style words and regenerate until characters match.

Continue learning