How to Restore Old Family Photos with AI: The Exact Prompts (ChatGPT & Gemini)

The short version: the faded photograph in your shoebox can be repaired this afternoon, free, on the phone you already own. You photograph the print, hand it to ChatGPT or Gemini with one careful prompt, and check the result against the original — especially the face. This guide gives you the exact prompts, and it starts one step earlier than every other article: with the print itself, because five minutes of physical care beats any AI. Everything here was verified in August 2026.

Why trust this: I’m a professor of AI and robotics and a former Samsung researcher. I have no affiliate arrangement with anything on this page — and because I build systems like these, I’ll also tell you the one thing the marketing won’t: AI doesn’t repair your photo. It repaints it. That changes how you should use it, and this guide is built around that fact.

Step 0 — if the print is damaged, start here, not at the upload button

Every other guide starts at the app. But if your photo is water-damaged, stuck to another photo, or stuck to glass, what you do physically in the next ten minutes matters more than anything software will ever do. This is the National Archives’ own salvage guidance, in plain words:

• Wet photos: air-dry them individually, face up, on paper towels, and change the paper as it soaks through.
• Don’t touch the image surface. Hold prints by the edges. The wet emulsion is as fragile as it will ever be.
• Never freeze old photographs or negatives. That’s the Archives’ word — never — even though freezing is standard advice for wet books and papers.
• Photos stuck together? Sometimes a soak in room-temperature distilled water, 15–30 minutes, lets them separate gently. But the Archives is blunt that this can cause irreversible damage — it’s a last resort, never for a one-of-a-kind photo. For the irreplaceable ones, a photograph conservator is the answer, not a sink.

And one rule that costs nothing: whatever state the print is in, it is the original record. Everything AI produces later is a copy with opinions. Keep the print.

Step 1 — get a good digital copy (no scanner needed)

Two free ways, and an honest note about which to pick:

The app: PhotoScan by Google (free, iPhone & Android)

It takes several shots of the print and combines them to remove glare — the shine that ruins most phone photos of photos. You hover over four dots; it does the rest. One counterintuitive detail from Google’s own instructions: leave the flash on. PhotoScan’s method needs the flash plus the multiple angles to subtract the glare. (The no-flash rule below applies only to plain camera shots.)

The plain camera, done right

• Indirect daylight, near a window — no flash.
• Print flat on a plain background; press curled corners under glass edges if needed.
• Camera directly above, parallel to the print, filling the frame.

Blurry-but-undamaged snapshots often don’t need the AI treatment at all — Google Photos’ Photo Unblur is free with no monthly cap and rescues most of them in one tap. (It’s in the free-tools ledger of my senior AI tools guide.)

Step 2 — choose your free tool: ChatGPT or Gemini

Both work the same way: upload the photo, paste a prompt, get a restored image back. The differences that actually matter, verified this month:

	ChatGPT (free account)	Gemini (free account)
Daily allowance	About 2–3 images a day (community-measured; OpenAI publishes no official number)	Higher — roughly 20 standard edits a day (unofficial; Google publishes no number)
Visible watermark	None	A small sparkle logo on generated images (only the top Ultra plan removes it)
Invisible provenance	Yes — C2PA Content Credentials + SynthID (since May 2026)	Yes — SynthID
Download size	Standard	1K on free (2K on paid)
Engine name you’ll see	GPT Image 1.5	Nano Banana 2 (yes, really)

Plain recommendation: one or two precious photos → ChatGPT (no visible watermark). A shoebox of thirty → Gemini (bigger daily allowance; the sparkle sits in a corner and doesn’t touch the subject). The invisible provenance data in both is a good thing — it’s how anyone can later confirm the image was AI-touched, which is exactly what an honest family archive wants.

(Never used ChatGPT? My step-by-step walkthrough for beginners over 50 starts from the very first screen. Never opened Gemini? The next two minutes cover it.)

Never opened Gemini? The two-minute setup

1. Find it — you may already have it. On most Android phones Gemini is already installed; it’s the assistant that replaced Google Assistant. Look for the four-pointed star icon. On iPhone: App Store → search “Google Gemini” (free, made by Google). No phone needed either — gemini.google.com works in any browser.
2. Sign in with the Google account you already have — the same one you use for Gmail. No new account, no credit card, nothing to buy. (Yes, you do need to be signed in.)
3. Upload the photo. Tap the + button (“Add files”) at the left end of the message bar → Photos → pick your scan. You can attach up to ten images in one prompt, so a small batch works too.
4. Save the result. Tap the restored image, then the download arrow — it lands with your photos and downloads. Free accounts download at 1K size, which prints beautifully at standard frame sizes.

That’s the whole setup. The small sparkle in the corner of the result is the free tier’s watermark from the table above — normal, and honest.

Step 3 — paste this prompt

The wording matters more than people think. A bare “restore this photo” invites the AI to beautify, and beautifying is where grandmother’s face starts drifting. This prompt orders the repair and forbids the repainting:

Restore this old photograph. Repair the scratches, creases, dust and fading, and improve clarity and contrast. Keep it in black and white. Do not change the people: keep every face, expression, hairline, clothing detail and piece of jewelry exactly as in the original. Do not add anything and do not remove anything.

Then refine with follow-ups — one instruction at a time works far better than a long wish list:

The skin looks too smooth and modern. Bring back the natural film grain and texture. Do not beautify anyone.

Rebuild the torn corner using only what is visible elsewhere in the photo. If you cannot tell what was there, leave it plain — do not invent objects.

Now make a colorized version with realistic, muted, era-appropriate colors. Natural skin tones. Do not repaint or alter the faces.

One honest note on colorizing: the colors are educated guesses. The AI does not know the dress was green. Enjoy the colorized copy — and keep the black-and-white as the true record.

Step 4 — judge the result like an archivist, not a customer

Here is the part no other guide will tell you, and it’s the reason this article exists.

AI restoration does not clean your photograph. It generates a brand-new image that resembles your photograph, filling every uncertain area with patterns learned from millions of other photos of that era. Where the original is clear, the copy is faithful. Where the original is faded or damaged — which is exactly why you’re restoring it — the AI is quietly making things up.

This is not theoretical. In a documented case from September 2025, a family historian ran his great-grandmother’s portrait through an AI restorer and got back a beautiful, sharp image of a woman who was “no longer recognizable as the same person” — the tool had also silently removed her brooch and the ruffles of her neckline. Face-identity preservation is, right now, a formally measured and unsolved problem in the research field (it has its own annual academic challenge). The vendors say their newest models preserve faces better, and they do — better is not the same as always.

So run the three-check on every restoration:

• The face, feature by feature. Put the original and the copy side by side. Eyes, nose bridge, mouth corners, ears, hairline. Is this still her?
• The details. Jewelry, buttons, collars, a hand on a shoulder, the picture on the wall behind. AI removes and invents small objects without mentioning it.
• The skin. If everyone suddenly looks airbrushed and thirty, ask for the grain back (the follow-up prompt above).

The rule, and it is not negotiable: save both versions, always. And for a memorial photo — one that will stand framed at a service — do the face check before you print, feature by feature, with someone else who knew them. The restored image is a loving repainting. The original is the person.

What this costs anywhere else

Route	Price (verified Aug 2026)	Worth it when
ChatGPT / Gemini free tier	$0	Faded, creased, dusty, mildly torn prints — most of the shoebox
Subscription tools (e.g., MyHeritage)	$7.99/mo or $49.99/yr (7-day trial; free tier = “a limited number” of photos)	You’re doing genealogy anyway and want batch tools
Human restoration artist	~$35/photo for light damage, up to several hundred for severe	Torn faces, missing pieces, the irreplaceable ones
“Free restore” websites	“Free”	Careful: the common pattern is free upload, then the result appears behind a watermark or subscription. The genuinely free path is the two chatbots above.

That order is also the honest workflow: try free first. For a badly torn portrait where a face itself is missing, skip AI and pay a human — that’s restoration as a craft, and $35–100 for a photo that matters is fair money.

Watch someone do it

A calm, senior-friendly walkthrough of the Gemini route, start to finish:

And a quick recent one showing how fast the same steps run once you’ve done it twice:

FAQ

Can ChatGPT restore old photos?

Yes — a free account can upload a photo and get a restored version back, roughly two to three images a day (OpenAI publishes no official number). Gemini’s free tier does the same with a larger unofficial allowance. Use a prompt that forbids changing faces, and keep the original.

What’s the best free way to restore photos without a watermark?

ChatGPT adds no visible watermark to images; Gemini’s free tier stamps a small sparkle (only its top plan removes it). Both embed invisible provenance data — which is good: it lets anyone verify later that the image was AI-edited. Most “free restore” websites gate the result behind a watermark or subscription.

Does AI photo restoration change faces?

It can, and documented cases exist — a 2025 restoration left a great-grandmother “no longer recognizable,” with her brooch silently removed. The AI generates a new image, guessing at damaged areas. Save both versions and compare faces feature by feature before framing anything.

How do I fix water-damaged photos that are stuck together?

Per National Archives guidance: air-dry wet photos individually, face up; never freeze old photos or negatives; don’t touch the image surface. Stuck prints sometimes separate after 15–30 minutes in room-temperature distilled water — a last resort that can cause damage. Irreplaceable photo? Photograph conservator, not the sink.

Can AI colorize black-and-white photos for free?

Yes — after restoring, ask for “realistic, muted, era-appropriate colors” in the same chat. Remember the colors are inferences, not facts. Keep the black-and-white as the record copy.

What’s the best way to scan old photos at home?

Google’s free PhotoScan app removes glare by combining several shots — flash on, as its instructions require. No app: indirect window daylight, no flash, print flat, camera parallel, fill the frame.

Is the Gemini app free, and do I need an account?

The app is free on Android and iPhone (and at gemini.google.com in a browser). You sign in with the Google account you already use for Gmail — no new account, no card. On most Android phones it’s already installed as the replacement for Google Assistant. Free accounts include photo editing; results carry a small sparkle watermark and download at 1K.

How much does professional restoration cost?

About $35 a photo for light damage, several hundred for severe work, in 2026. Subscriptions like MyHeritage run $7.99 monthly or $49.99 yearly. Try the free route first; pay a human for the truly damaged, truly precious ones.

The bottom line

Somewhere in your house is a photograph only you still have — and the person in it is why you read this far. Give the print five minutes of care, scan it in window light, paste one careful prompt, and then do the one thing the software will never do for you: look at the face and make sure it’s still them. Keep both versions. Frame the one that’s true.

I explain AI in plain English — one short, friendly email a month. Unsubscribe anytime.

Keep reading

• The best free AI tools for seniors — Photo Unblur, reading labels aloud, hearing the TV: what’s genuinely free.
• How to use ChatGPT, step by step, for beginners over 50 — every screen, nothing assumed.
• AI scams targeting seniors — the same image tools have a criminal side; the family safe word beats it.
• ChatGPT for Excel — formulas from plain English — no memorizing, ever.
• How to Plan a Trip with ChatGPT — five prompts to a relaxed itinerary.
• Prep for a Doctor Visit with ChatGPT — one printed page: timeline, meds, top three questions.

About the author

Prof. H is a professor of AI and robotics, a former Samsung researcher, and the author of dozens of textbooks on AI and automation. He writes hands-on, no-hype guides to AI tools. More about the author →