AI Image Generation: A Beginner's Guide to Prompting

AI image generation turns text descriptions into images. The quality of your output depends almost entirely on how you write your prompt. This guide covers the fundamentals that work across all models.

Anatomy of a Good Prompt

Every effective prompt has four components:

1. Subject

What is the main focus? Be specific. "A cat" is vague. "An orange tabby cat sitting on a windowsill" gives the AI something concrete to work with.

2. Style

How should the image look? "Photorealistic," "oil painting," "watercolor," "3D render," "flat illustration," "anime style," "pencil sketch" — the style directive shapes the entire aesthetic.

3. Details

What makes this scene unique? Describe the environment, lighting, colors, textures, and mood. "Warm afternoon sunlight streaming through the window, dust particles in the light, cozy living room background."

4. Quality Modifiers

Terms that push the output toward higher quality: "high resolution," "professional photography," "detailed," "sharp focus," "8K." These do not always have a dramatic effect, but they nudge the model in the right direction.

Common Mistakes

Being Too Vague

"A pretty landscape" could be anything. "A misty mountain lake at dawn with pine trees reflected in still water" is specific enough for the AI to produce something intentional.

Contradictory Instructions

"A dark, bright, minimalist, detailed scene" contradicts itself. Pick a direction and commit.

Overloading the Prompt

Extremely long prompts with dozens of requirements often produce confused results. Focus on the 3-5 most important aspects.

Ignoring the Model's Strengths

Different models excel at different things. Use Gemini for versatile generation, Seedream for portraits, Recraft for text, Flux for general purpose. Matching your prompt to the right model matters more than prompt engineering tricks.

Iteration Strategy

Start Cheap

Use Flux Schnell (1 credit) to test your prompt. Generate 3-4 variations. Evaluate what works and what does not.

Refine

Adjust the prompt based on results. Add details that were missing, remove elements that caused problems.

Upgrade

Once the composition is right, switch to a higher-quality model for the final output.

Example Prompts

Product Photo: "Professional product photograph of a matte black water bottle, centered on a white background, studio lighting, commercial photography, clean, minimal, sharp focus"

Portrait: "Professional headshot of a young businessman, neutral gray background, soft studio lighting, confident expression, suit and tie, editorial portrait photography, shot at f/2.8"

Landscape: "Dramatic aerial view of the Norwegian fjords at sunset, golden light on the water, steep green cliffs, low clouds, cinematic landscape photography, vibrant colors"

Logo: "Minimalist logo design for a coffee shop called 'Bean & Brew', clean vector style, coffee brown and cream white color palette, modern sans-serif typography" (use Recraft for this)

The best results come from clear, specific prompts matched to the right model. Start simple, iterate, and build complexity as you learn what works.