4K Upscale and Detail Enhancement, AI image made with Nano Banana Pro
Example output · Nano Banana ProCredit: K

4K Upscale and Detail Enhancement Prompt

Use this prompt in Gemini to restyle your own photo as a 4K upscale and detail enhancement without losing your likeness. The prompt is short and flexible, so it is easy to adapt to your own idea. It includes face-lock instructions so your facial features, skin tone and expression stay the same.

89 words Needs your photo

4K Upscale and Detail Enhancement prompt text

Copy & paste

Upscale the uploaded image to 4K resolution, preserving 100 % character consistency, original facial features, clothing details, and scene composition. Maintain original lighting, texture, and fine details such as hair strands, fabric texture, reflections, and shadows. Apply high-quality upscaling with sharp but natural edges, no distortions, and minimal AI artifacts. Keep the character’s identity, proportions, and expressions unchanged. Enhance clarity in skin texture, eyes, and background elements while preserving the original color palette and artistic style. Output a crisp, highly detailed, ultra-high-resolution image suitable for print and professional display.

How to use this prompt

  1. 1

    Copy the prompt

    Tap "Copy prompt" to copy all 89 words exactly as written.

  2. 2

    Upload your photo

    Open Google Gemini (gemini.google.com) and pick Nano Banana / "Create image", tap the + button and attach one sharp, well-lit photo where your face is clearly visible.

  3. 3

    Paste and generate

    Paste the prompt and send it.

  4. 4

    Refine with follow-ups

    Ask for small changes in the same chat — "make the lighting warmer" or "change the outfit colour to black" — instead of rewriting the prompt.

Make it your own

  • Format: add "4:5 aspect ratio" for Instagram posts or "9:16" for Reels.

Pro tip: A prompt designed for high-quality upscaling, instructing the model to convert an uploaded image to 4K resolution while strictly preserving 100% character consistency, facial features, clothing, composition, and original lighting. It specifically demands enhancement of fine details like skin texture, hair strands, and fabric texture with sharp but natural edges.

4K Upscale and Detail Enhancement prompt — FAQ

Is the 4K upscale and detail enhancement prompt free?

Yes. You can copy the full 4K upscale and detail enhancement prompt on Hixa for free and use it in Google Gemini, ChatGPT or any other AI image tool. No signup is needed.

Will this prompt change my face?

It is written to keep your facial features, skin tone and expression the same as your uploaded photo. For the best likeness, use a sharp, front-facing photo in good light. If the face drifts, reply with "keep my face exactly the same as the uploaded photo".

Which AI tool works best for this prompt?

It is written for Google Gemini's Nano Banana Pro image model. It also works in ChatGPT image generation and most modern AI image tools, though results vary between models.

What aspect ratio should I use?

Use 4:5 for Instagram feed posts, 9:16 for Reels and Stories, and 16:9 for YouTube thumbnails. Add the ratio at the end of the prompt.

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