Your own photo · closed-mouth, teeth or laugh
AI smile generator — a natural smile on your own photo
Upload a photo of yourself and the AI adds the smile you name — a soft closed-mouth smile, a natural smile with a little teeth, or a full laugh — with smiling eyes to match. Your face, hair and background stay as they are.
- Your own photo
- 6 smile types with prompt words
- Smiling eyes, not just a mouth
- No watermark
Updated by the Kenerate AI team
On this page
Quick answer
How do I make someone smile in a photo with AI?
An AI smile generator adds a smile to a face in a photo you upload. To make yourself smile in a photo, upload a clear, front-facing picture and describe the smile plus what must stay — for example "a natural smile with a little teeth and smiling eyes; keep my face and background the same". Kenerate opens its image editor with that instruction filled in, so you only add the photo and press Create. Swap the words for a closed-mouth smile or a laugh; to make the photo smile on video, animate it with Wan 3.0.
Key facts
- Works on
- Your own photo, or one you have permission to edit
- What changes
- Mouth, cheeks and the corners of the eyes
- Keeps
- Face shape · identity · hair · background
- Smile types
- Closed-mouth, natural, big teeth, laugh, half smile, smiling eyes
- Default model
- Qwen Image 3.0 (free plan)
- Moving smile
- Wan 3.0 image-to-video, 2–30 s (paid plan)
- Watermark
- None
Smile types
Which smile? The kinds, and the words that get them
A smile that only moves the mouth looks pasted on. Every prompt below also names the cheeks or the eyes — keep that part.
| Smile | What it looks like | Good for | Prompt words |
|---|---|---|---|
| Closed-mouth smile | Lips together, corners turned up, cheeks lifted a little | Work photos, formal profiles | a soft closed-mouth smile, lips together, corners turned up, cheeks slightly lifted |
| Natural smile | Lips slightly parted, a little of the top teeth, relaxed eyes | Profile pictures, dating and social | a natural, genuine smile, lips slightly parted, a little of the top teeth showing |
| Big teeth smile | A wide smile showing the top teeth fully | Celebrations, team photos | a big, wide smile showing my top teeth, cheeks raised |
| Laugh | Mouth open, head tipped a little, eyes narrowed | Candid-style and holiday shots | laughing naturally, mouth open, eyes narrowed with joy |
| Half smile / smirk | One corner of the mouth lifts more than the other | Creator bios, confident portraits | a subtle half smile, the left corner of the mouth slightly higher |
| Smiling eyes | The eyes crinkle and the cheeks rise — the part that makes a smile read as real | Add to any of the above | the corners of my eyes softly crinkled, cheeks lifted, a warm look |
Photo or video
Smiling photo, moving smile or video?
Three different tools in Kenerate, depending on what you start with and what you want back.
| What | Smile on a photo | Make the photo smile (clip) | Change a video's mood |
|---|---|---|---|
| You add | One photo + the smile in words | One photo as the start frame + a motion prompt | A video up to 15 s + a speech track up to 15 s |
| You get | A new still | A short clip, 2–30 s | The same clip re-acted, timed to the speech |
| Tool | Image Studio | Video Studio · Wan 3.0 image-to-video | Avatar Talk · Sync React-1, emotion “happy” |
| Plan | Free plan with Qwen Image 3.0 | Paid plan (video) | Credits per second of the clip |
How to
How to use the AI smile generator
- Time needed
- Steps
- 4 steps
Step 1
Open the smile generator
Press “Add your photo”. Image Studio opens with a natural-smile instruction in the prompt box. Sign in free for starter credits.
Step 2
Upload your photo
Add a clear photo of yourself, facing the camera, with your whole face visible and in focus.
Step 3
Pick the smile
Keep the natural smile or swap in the words for a closed-mouth smile, a big teeth smile or a laugh from the table above.
Step 4
Create and compare
Press Create, run it again for a second take, and download the one that looks most like you, without a watermark.
See it in the app
Open Image Studio and type what you want to see — subject, style, lighting and mood.
Watch the tour · 1:23
Prompts, styles, references, edit, Arena & chat
Chapters
Tips
Get a smile that looks like yours
What keeps an added smile believable.
Use a sharp, front-facing photo where your face fills a good part of the frame.
Name the eyes as well as the mouth — “corners of the eyes softly crinkled” — or the smile looks fake.
On a serious photo, start with a closed-mouth smile; a big teeth smile changes the most.
Keep “keep my face shape, identity and background exactly the same” in every prompt.
Check the teeth: if they look too even or too white, run it again or ask for “my natural teeth”.
Group photo? Crop to one face, edit it, and only with that person's permission.
Models
Models for smile edits
What each model is good at. Open any one straight in the generator.
- Free plan
Alibaba
Qwen Image 3.0
- Reference images
- Up to 3
- Output
- 1K or 2K
Open Qwen Image 3.0Best for
Default here · free plan
Google
Nano Banana 2.1
ByteDance
Seedream 5.0 Pro
- Reference images
- Up to 10
- Output
- Up to 2K
Open Seedream 5.0 ProBest for
Good at keeping faces the same
OpenAI
GPT Image 2.5 Sunburst
- Reference images
- Up to 16
- Output
- 1K to 4K
Open GPT Image 2.5 SunburstBest for
Fine detail in teeth and eyes
FAQ
AI Smile Generator questions
8 questions
How do I make someone smile in a photo with AI?
Upload the photo — your own, or one the person agreed to — and press Create. Image Studio opens with a natural-smile instruction filled in: lips slightly parted, a little teeth, cheeks lifted and the eyes softly crinkled, keeping the face and background the same. Swap the words for a closed-mouth smile or a laugh to compare on the same photo.
Link to this answerIs the AI smile generator free?
Yes, to start. A new Kenerate account gets free starter credits, and Qwen Image 3.0, the default model here, is on the free plan. Nano Banana 2.1, Seedream 5.0 Pro and GPT Image 2.5 Sunburst use credits from a one-time pack; there's no subscription. Making the photo smile on video needs a paid plan. Results download without a watermark.
Link to this answerWhy do AI smiles sometimes look fake?
Because only the mouth changed. In a real smile the cheeks rise and the corners of the eyes crinkle — often called a Duchenne smile. If the prompt asks only for “a smile”, the model may keep serious eyes above a smiling mouth. Name the eyes and cheeks in the prompt, as every row in the table does.
Link to this answerClosed-mouth smile or teeth smile — which looks better?
On a photo where you weren't smiling, a closed-mouth or natural smile usually looks more like you, because the model has to change less. A big teeth smile has to invent teeth it can't see, so check them closely. For work photos, closed-mouth; for social, natural; for celebrations, a big smile or a laugh.
Link to this answerCan I make a photo smile in a video?
Yes. In Video Studio, use the photo as the start frame for Wan 3.0 image-to-video and describe the motion, for example “slowly breaks into a warm smile, then holds it, the camera stays still”. You get a 2–30 second clip; video needs a paid plan. If you already have a video with speech, Sync React-1 in Avatar Talk can re-act it with the “happy” emotion.
Link to this answerWill it change my teeth?
If teeth weren't visible, the model has to draw them, so they may come out more even or whiter than yours. Add “my natural teeth, not too white” to the prompt, or use a closed-mouth smile. If your teeth were visible in the original, the edit usually keeps them close.
Link to this answerDoes it work on group photos?
Crop to one face first. Editors are most reliable with a single, large face; on a wide group shot the model may change the wrong person or soften the whole photo. Edit each person separately, and only with their permission.
Link to this answerCan I add a smile to someone else's photo?
Only if it's your own photo or the person has agreed. A smile changes how someone comes across, so never use it to make a person appear happy about something they weren't, and don't edit photos of public figures or anyone under 18. Kenerate's content rules apply to every edit.
Link to this answerIn depth
AI Smile Generator, explained
What works, what to avoid, and how to pick a model.
On this page
How does an AI smile generator work?
It's an instruction edit. Your photo and one sentence go to an image model's edit endpoint; the model redraws the mouth, the cheeks and the corners of the eyes, and leaves the rest of the picture alone. Qwen's model card calls this appearance editing — the part you name changes, everything else should stay as it was.
How do I write a smile prompt?
Three parts are enough:
- The smile: “a soft closed-mouth smile”, “a natural smile with a little of the top teeth”, “laughing”.
- The eyes and cheeks: “cheeks lifted, the corners of the eyes softly crinkled”.
- What must not change: “keep my face shape, identity, eye colour, skin, hair, head angle, clothing, background and lighting exactly the same”.
How do I make a photo smile on video?
Open Video Studio, pick Wan 3.0, add your photo as the start frame and describe the motion — the smile, how fast it comes, and that the camera stays still. Image-to-video keeps the face from your frame, so do any still edits first.
Starting from a video instead? Sync React-1 in Avatar Talk re-acts a clip of up to 15 seconds to a speech track, with “happy” as one of its six emotions.
Whose photos can I edit?
A smile edit changes how a real person comes across:
- Your own photos, or photos of adults who have agreed to the edit.
- No public figures, strangers or anyone under 18.
- Don't present an added smile as a real reaction where that could mislead someone.