Fix Blurry AI Images in Midjourney and Stable Diffusion

A blurry AI image doesn’t always need another prompt pack. First, work out whether the problem is image size, unwanted visual styling, or the generation workflow.

Start with the problem, then choose the adjustment—not the other way around. Keep the original and change one thing at a time. That makes it easier to see what helped.

Midjourney: choose the right upscale

For V7 images, Midjourney documents two options:

• Subtle enlarges the image while keeping changes to a minimum.

• Creative enlarges it while potentially adding details and changing its appearance.

Try Subtle first when you like the original. Compare Creative separately if you’re willing to accept changes. Other Midjourney versions may offer different controls.

If the original already has the wrong look, revisit the prompt before enlarging it. Describe the subject and the focus you want without piling on unrelated style instructions.

Here’s a simple brief to experiment with—not a guaranteed sharpness fix:

A ceramic coffee cup on a wooden table, entire cup in focus, clearly defined rim and handle, soft window light, simple background, natural photographic style.

Stable Diffusion: check the workflow

Stable Diffusion instructions depend on your model and interface. A setting from one tutorial isn’t automatically right for another setup.

In AUTOMATIC1111, Hires. fix combines an initial generation, upscaling, and a second refinement pass. It is a workflow option, not a universal image-repair button.

For a useful comparison:

1. Start with a composition you want to keep.

2. Record the model, upscaler, and refinement settings.

3. Change one setting at a time.

4. Inspect faces, edges, and textures—not just the larger dimensions.

AUTOMATIC1111 also supports inpainting: masking an area and regenerating that part of the image. If one small area is the problem, a targeted edit may be more appropriate than reworking the whole picture.

Find a guide that fits the task

A resource is useful when it teaches the part of the process you need—not simply because it advertises more prompts.

• Ultimate Guide to Photorealistic AI Images in Minutes (Midjourney): Camera, lighting, and shot references alongside image-and-prompt examples.

• Beginner’s Guide to Stable Diffusion — Second Edition: Prompting, image-to-image, inpainting, and upscaling within a broader workflow.

• Stable Diffusion Prompt Generator — 300+ Effective Keywords: Positive and negative prompt components organized in Notion or Excel.

These listings describe learning resources, not automatic blur-removal tools. Remember to check the model coverage and access requirements before choosing any AI prompt pack.