One photo in · Only the smile changes · Nothing to install
Stains gone, shapes kept, every other pixel where it was. Runs in the browser, free to start.
A real run through the model this page uses, on a close-up where the smile fills the frame. Drag the divider and watch only the mouth move — the freckles, the hair and the light stay exactly where they were. Every output is AI-generated, so your result varies with your photo — treat this as a guide to what the tool does, not a fixed result you will get back exactly.


Drag to compare before and after
It brightens the enamel in a photograph you already have and leaves the rest of the picture alone. It is a retouching pass on an image — nothing about it touches your actual teeth, and it makes no claim about them.
Two failures are what make most attempts obvious. The first is the flat white block: paint the whole mouth one value and you lose the translucency at the biting edges and the soft shadow between teeth, and the smile stops looking like it belongs to a face. The second is bleed — brightness that spills onto the lips and gums, leaving a pale halo around the mouth that is visible from across a room.
Keeping the original tooth shapes, their small irregularities and the shading near the gum line is what separates a clean edit from an obvious one.
The pass runs on the Nano Banana editing model in the browser, with free credits to start. Upload the photo, the flow opens on image-to-image, and the credit estimate updates before you commit; a failed run is refunded automatically unless it broke the content policy. The source decides the ceiling: a shot where the mouth is open, in focus and lit well enough to see individual teeth gives the pass something to work with.
Teeth in deep shadow, a smile blurred by motion, or a face so small in the frame that the mouth is a few dozen pixels wide leave nothing to brighten cleanly.
Creative engine
Upload a photo where the smile is in focus, say how bright you want it, and the credit estimate updates before you generate.
Same teeth, same positions, same edges and gaps — only the colour changes, which is why nobody can point at what was done.
Runs in the browser with free credits — no retouching software, no brush masks, no account wall before you see a result.
The same targeted approach covers the rest of the mouth and the rest of the frame: straightening in the braces filter, a whole expression change in the AI smile generator, and damage repair in old photo restoration.
From one photo to a brighter frame, with the cost shown before you commit.
The mouth open, in focus, and large enough in frame that individual teeth are visible. That is the whole prerequisite.
Ask for a natural shade that matches the light in the photo, or push brighter for a poster. Name it and the pass respects the ceiling you set.
Generate, then export. A failed run is refunded unless it broke the content policy, so a second pass at a different shade costs you nothing.
People with one good photo, people with a profile to fill, people printing something that will be looked at closely.
Everyone has a shot where the moment is perfect and the lighting turned the smile yellow. This is the pass that saves that frame instead of retaking the day.
A work headshot, a team page, a dating profile — anywhere the picture is looked at closely, and a quick pass across the rest of the shot is worth the minute.
Wedding thank-you cards, graduation prints, a family photo going on a wall at A3. Print magnifies everything a screen forgives.
Common questions about brightening a smile in a photo with Kavel.
No. This edits an image file — it brightens the enamel in a photograph you upload and gives you a new picture back. It is a retouching tool, not a dental treatment, and it says nothing about your teeth or anyone else's.
Only if you ask for a shade the light in the photo cannot support. The pass keeps the original tooth shapes, the gaps between them and the translucency at the edges, so a natural target lands cleanly. Push toward pure white on a warmly lit photo and the mouth starts to detach from the face — that is the ceiling to respect.
No — this pass changes colour only. Alignment is a different job with a different tool, and the [braces filter](/image/braces-filter) is the one that handles straightening while leaving the rest of the face alone.
It should not. The whole design of the pass is that everything outside the enamel comes back untouched — lips, gums, skin tone, hair, lighting, background. If a result shifts something else, run it again; the model is not deterministic and a second pass usually behaves.
An open smile, in focus, with the face reasonably large in the frame and light falling on the front of the teeth. What hurts: heavy shadow inside the mouth, motion blur, a face that occupies a tenth of a wide shot, and photos already crushed by heavy compression from a chat app.
Yes, and you can name who — say every person, or say the two on the left, and the pass follows. Larger groups mean each face occupies fewer pixels, so the practical limit is how big the mouths are in frame rather than how many people are standing there.
The estimate is on screen before you press generate and moves with the format and resolution you pick, so nothing runs unpriced. Failed runs are refunded unless they broke the content policy, and a new account starts with enough free balance to compare two shades on the same photo first.
It is the same retouch a photographer has done in the darkroom and then in software for a century, and it is expected at this point in commercial work. Where it gets sensitive is anything presented as documentary or evidential — a news photo, an ID document, a before-and-after in an advertisement — and those are worth leaving alone.
One credit pool covers Nano Banana images and Seedance and Veo video. The cost shows before every run, and failed jobs are not charged. Use a subscription for ongoing work, or a one-time pack when you just need to top up.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
One-time top-ups — buy extra credits any time you run low.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
What's included
Secure checkout by Stripe. Card details never touch our servers.
Charges appear as “KAVEL AI” on your card statement. You can cancel any time from Settings → Billing; cancellation takes effect at the end of the period you already paid for.
Powered by
Use one balance across every supported image and video model — ten of them today, listed below — and check the credit cost before each request.
Video models
Image models
Model credit guide
You're only charged for successful generations. The exact estimate in the generator varies by model, length, resolution, audio, and number of images.
| Type | Model | Credit cost |
|---|---|---|
| Video | Seedance 2.0 | 5s 720p image-to-video ≈ 188 credits; text-to-video ≈ 308 credits. Scales with resolution and length. |
| Video | Seedance 2 Fast | Faster and lower cost. 5s 720p text-to-video ≈ 248 credits. |
| Video | Seedance 2 Mini | The cheapest Seedance tier. 5s 720p ≈ 154 credits, 5s 480p ≈ 72 credits. |
| Video | Seedance 1.5 Pro | Audio doubles the rate. 5s 720p ≈ 27 credits silent, ≈ 53 with audio; 1080p ≈ 57 and ≈ 113. |
| Video | Veo 3.1 | Billed per video, not per second (Lite tier). About 45 credits at 720p and 53 at 1080p. |
| Video | Kling 3.0 | Audio raises the rate. 5s 720p ≈ 105 credits silent, ≈ 150 with audio; 1080p ≈ 135 and ≈ 203. |
| Video | MiniMax H3 | Fixed 2K, no resolution ladder. Priced per second — a 5s clip ≈ 158 credits. |
| Image | Nano Banana 2 | Generate or edit from text and images. About 8 credits per 1K image, 12 at 2K, 18 at 4K. |
| Image | Nano Banana Pro | Consistent run times across generations. About 12 credits per 1K or 2K image, 21 at 4K. |
| Image | Nano Banana 2 Lite | Faster, simpler variant. A flat 8 credits per image at every resolution. Start here to test. |
| Image | GPT Image 2 | The lowest-cost image model here. About 3 credits per 1K image, 6 at 2K, 12 at 4K. |
| Image | Seedream 5.0 Lite | Flat pricing — about 8 credits per image whether you generate or edit. |
One photo in, the same smile back without the stains — shapes, edges and everything else in the frame left alone. Nothing to install and no masks to paint.