Build an AI image prompt for a photo of your AI persona: who they are, where they are, what they wear and do, the light, the camera and the framing. It is for anyone who runs an AI influencer page and wants photos that look taken on a phone. Each prompt is written the way Nano Banana 2, GPT Image or Grok Imagine reads best.
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Auto picks what fits the persona. Press Generate again for new details with the same picks.
Describe your persona or pick a type. Choose a setting, outfit, pose, light, camera, framing and aspect ratio, or leave any on Auto.
Pick your image model. Press Generate prompt for new details with the same picks, or Randomize for a new photo idea.
Copy the prompt as text or JSON and paste it into your image tool. If the reference line is on, attach the persona’s photo.
A good persona prompt describes one photo, block by block. Each block answers one question, so you can change one thing and keep the rest.
Describe only what is in the frame, in positive words. Google’s guide for its image models puts it this way: ask for “an empty street”, not “no cars”. Naming a thing you don’t want can put it in the picture.
When you attach the persona’s photo, the prompt opens with the identity line Use reference image. Maintain EXACT persona. It then names the traits to keep from the photo instead of describing a new face.
| Model | How the prompt is written | With the persona’s photo |
|---|---|---|
| Nano Banana 2 | A narrative description, not a keyword list. Google’s formula: subject, action, location, composition, style. It starts with a verb: “Create…”. | Reference, then how to use it, then the new photo. Google lists up to 14 reference images for this model, with up to 4 of them of people. |
| GPT Image | Short labeled lines in a fixed order: scene, subject, details, then what to keep. The word “photorealistic” and words like “candid” and “unposed” set the look. | A keep list for the face and the rest. OpenAI suggests repeating that list on every edit so the person drifts less. |
| Grok Imagine | One detailed description of the photo. | xAI’s docs describe edits as a source image plus the change you want, in plain words. |
The JSON view holds the same picks as labeled blocks. Paste whichever your tool takes, and set the aspect ratio in the tool as well as in the prompt.
Turn the image into a clip of your AI persona: make the image from the persona’s photo, then the video from that image, on your own API keys. How making videos works →
Any model that takes a text prompt. The text view is written for the model you pick: Nano Banana 2, GPT Image or Grok Imagine. For an AI persona, use a model that also takes a reference image, so the face stays the same.
9:16 when the image will be the first frame of a Reel or a Story. For a feed photo, 3:4, 4:5 or 1:1 fit Instagram, and Meta recommends 4:5 for Facebook Feed images.
Either. Both describe the same photo. The text is shaped for the model you picked. The JSON puts each block on its own line, so one field is easy to change and save.
Better not. Google’s prompting guide for its image models says to describe what you want, such as “an empty street”, instead of what to leave out, such as “no cars”. Every line here is written that way.
