Realistic AI Image Generator — Create Realistic Images with AI

Fig. 01Close-ups · three separate images at full size

What a realistic AI image looks like up close

An image can look real as a thumbnail and fall apart when you zoom in. So zoom in. Each image below was made for this page on a free model, at 1024px, with no sharpening and no upscaling. Skin, eyes and hair each go wrong in their own way, so there is one of each.

Look long enough and you will still find something a camera would not do. That is the honest answer. These images are good enough to use at normal size, not good enough to pass a forensic check.

Fig. 02Four reasons images look fake, and the fix for each

Why AI images look fake, and how to fix it

Most fake-looking images fail for one of four reasons. Each one has a simple wording fix. The two images below came from the same model, minutes apart. Only the prompt changed.

• Reason 01

  Skin that is too smooth

  The skin is one flat, even colour. No pores, no fine hair, no blotches. This is the fastest giveaway of all.

  Type instead“visible pores, fine facial hair, uneven skin tone, slight shine on the forehead”

• Reason 02

  A face that is too symmetrical

  No real face is a mirror image. Matching eyes, level eyebrows and a perfectly centred nose look like a mask.

  Type instead“asymmetric features, one eyebrow slightly higher, head turned a few degrees”

• Reason 03

  Light with no direction

  The light comes from everywhere at once. Nothing casts a shadow, so the subject looks pasted onto the background.

  Type instead“single window light from the left, soft shadow under the jaw, light fading into the background”

• Reason 04

  Surfaces with no texture

  Fabric with no weave. Walls with no grain. Metal with no scratches. Surfaces look like flat colour instead of real material.

  Type instead“linen weave visible, matte paint with dust, brushed metal with fine scratches”

Fig. 03Six things to put in your prompt

How to write a prompt for realistic images

• Lens

  Focal length and aperture

  “85mm, f/1.8” gives a portrait look with a blurred background. “24mm” gives a wide shot with visible distortion.

• Light

  One source, and where it is

  Name a single light and place it. A cloudy window, hard midday sun and one softbox on the left all look completely different.

• Surface

  How the material behaves

  Say whether a surface is matte, satin or shiny. This is what keeps skin from looking like plastic.

• Flaw

  One thing out of place

  A stray hair, a crease, some dust, a fingerprint. Nothing looks real if everything is perfect.

• Focus

  What is sharp, what is blurred

  Say which part should be sharp. A background that is sharp everywhere looks computer-made.

• Colour

  Film or plain digital

  “Portra 400 grain” and “plain digital, no colour grading” both work. Pick one instead of leaving it open.

Fig. 04What it gets wrong

What the realistic AI image generator still gets wrong

You cannot switch these off. Knowing about them upfront saves you credits.

• Anatomy

  Hands and teeth

  Hands and teeth change with every run. Hands go wrong often, so plan to run it again or crop them out.

• Text

  Words in the picture

  Any text in frame, such as a sign, a label or a book spine, comes out misspelt. Treat text as decoration, not as words.

• People

  Real, named people

  You cannot generate a real person by name. You can describe a type of person: age, build, clothes, expression.

• Repeats

  The same face twice

  The same prompt gives you a different person each time. To keep one face across several images, reuse your first image as a reference.

• Physics

  Reflections and shadows

  Mirrors, glass and shadows look believable but are not accurate. They rarely hold up to a close look.

• Sizes

  Measurements

  Sizes and proportions are there to look right, not to be correct. Never use an AI image to check whether something fits.

This one came back right on the first try: ten fingers, creases at the knuckles, veins, nails sitting where they should. That is the honest point about hands. They do not fail every time. They fail at random.

Random is worse than always, because you cannot plan around it. Check the hands in every image you generate. Run it again, or crop, when they come out wrong.

Fig. 05Which model to use

Which AI model makes the most realistic images

Several models sit behind the same prompt box, and they are good at different things. For photo-style work, start with the first one. If a result is close but not right, switch models. Your prompt carries over.

• Start here

  FLUX 2 Max

  The best texture and the most camera-like focus. Use it for anything that has to pass as a photograph.

  Open FLUX 2 Max
• Long prompts

  GPT Image 2

  The best at following a long prompt where several instructions must all be obeyed.

  Open GPT Image 2
• Dramatic light

  Seedream 5 Pro

  Gives you film-like, art-directed light straight away. Pick it when mood matters more than accuracy.

  Open Seedream 5 Pro

Every model shows its credit cost on the Generate button once you sign in. Draft on a cheap model, then run the prompt you like on a better one.

Fig. 06The process

How to create realistic AI images in four steps

1. 01

   Write it like a photographer

   Name the subject, the lens, the light, the surface and one flaw. Twenty exact words beat sixty vague ones.

2. 02

   Run it two or three times

   Every run starts fresh, so the results differ. Keep the one that matches your prompt, not the prettiest one.

3. 03

   Zoom in and check it

   View skin, hands and any text at full size. That is where the mistakes will be.

4. 04

   Change one thing

   Edit one instruction at a time. Change two and you will not know which one helped.

Fig. 07Good uses and bad uses

What photorealistic AI images are good for

Fig. 08Questions

Questions about realistic AI images

1. How do you make AI images look real?

   Describe the photo like a photographer, not like a wish list. Give the lens and aperture, one light and where it is, how the surfaces behave, and one imperfection. Those four things change the picture. Words like “photorealistic” and “8K” barely do anything.

2. Can it generate realistic human faces?

   Yes, for people you describe: age, build, expression and lighting. Not for real, named people. The same prompt gives a different face every run, so reuse your first image as a reference if you need the same person again.

3. Why do the hands look wrong?

   Hands are the weakest part of AI image generation, after text. They fail at random rather than every time. Run it again, crop the hands out, or frame the shot so the hands are not the focus.

4. Is it free, and is there a watermark?

   You can start free. New accounts get 100 credits. Downloads have no watermark. Each run uses credits, and the cost shows on the Generate button before you press it.

5. Which model is best for photorealism?

   Start with FLUX 2 Max. Use GPT Image 2 for long prompts with several instructions. Use Seedream 5 Pro when you want dramatic, film-like light instead of plain accuracy. Your prompt carries over when you switch.

6. Can I use the images commercially?

   That depends on your plan, so check yours before you use an image in paid work. The free trial and the paid plans are not the same on this point.