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Photo expression editing

AI Smile Generator

Give an existing portrait a different expression with a written request. Upload your photo, describe the smile, and generate an edited image. Start with a small change, such as relaxed lips or a gentle closed-mouth smile. Sceneform opens Image Editor, which shows the credit cost before you generate.

Compare plans and credits
A woman with a neutral expression, and the same woman smiling
Top: an AI-generated portrait. Bottom: a smile added with Nano Banana 2.1 in Sceneform's image editor.

What you can create

Choose the expression in words

Describe whether the mouth stays closed or shows teeth. Add a clear instruction for the cheeks and eyes. A request for a gentle smile gives more direction than a general instruction to improve the portrait. Keep your first request focused so you can judge the expression separately from other changes.

Work with the original portrait

Use a clear photo with visible facial features and enough space around the face. Ask to retain the hairstyle, clothing, lighting, and camera angle. Image editing generates a new interpretation, so those details can still change. Compare the output with your source before choosing a version for a profile or presentation.

Check more than the mouth

A convincing expression involves the whole face. Inspect the lip shape, teeth, cheeks, and eyes at full size. Check for repeated teeth, uneven edges, or a smile that does not match the eyes. Refine one part of your request when the result feels too broad or too stiff.

From your idea to finished content

  1. Upload a clear portrait

    Open Image Editor and add your source photo. Pick an image with an unobstructed face rather than a distant group shot. Check the credit cost shown next to the Edit button before you submit your request.

  2. Describe the smile and retained details

    Specify the mouth shape and the expression's intensity. Name the parts of the photo you want to retain. Avoid combining a new smile, hairstyle, outfit, and background in the first request. A focused edit makes it easier to identify what needs refinement.

  3. Review the face before saving

    Compare the generated portrait with the original. Inspect the teeth and lip edges, then view the image at its intended display size. Keep a result that fits the photo's mood. Revise the prompt if the face changes more than you intended.

Prompts to start with

Use these briefs as a starting point. Replace the details with your own product, audience, and style.

A relaxed profile picture

Give the person a gentle closed-mouth smile with relaxed cheeks. Retain the hairstyle, clothing, background, and original lighting. Keep the expression understated. Avoid changing the face shape or adding visible teeth.

A cheerful announcement portrait

Change the expression to a warm smile with a small amount of upper teeth visible. Keep the eyes relaxed. Retain the camera angle and background. Use subtle changes around the mouth instead of an exaggerated grin.

Frequently asked questions

Create your next project

Start with a clear brief. Review the result. Make it yours.