Procedure Photo From a Reference

Procedure 2: Generate a Photo From a Reference Photo

A reference photo steers a new image toward its layout and colors. FLUX dev starts from the reference and repaints it to match your prompt.

A reference does not lock a face. FLUX keeps the general look but often changes the person. For the same face in every image, train a LoRA with Procedure 3 and Procedure 4.

Before you start: save your Replicate key under Image in Settings.

Cost: $0.025 per image with FLUX dev. The photo upload is free.

Option A: a photo from your phone

The quick way: tap Image, tap the photo button at the left of the message bar, pick the photo, and choose Reference for the next image. OT Studio uploads the photo and switches Image to FLUX dev when the current model takes no reference. Then continue at step 5.

The same steps in API CALL:

1. Tap Image, then API CALL.
2. Under Saved models, choose black-forest-labs/flux-dev. This model has an image input for the reference.
3. Scroll to the image input card and tap Choose photo.
4. Pick a photo in the Android photo picker. OT Studio uploads it to your Replicate account, fills the image input, and checks its box. A blue banner confirms the upload.
5. Check prompt_strength and set how far the result may move from the reference. At 0.5 the result stays close to the photo. At 0.8, the default, the prompt has more say. Values near 1 mostly ignore the reference.
6. Tap Apply.
7. Write a prompt that describes the result you want, not the reference. For example: the same street at night, neon signs, rain on the pavement.
8. Tap send. Save the result when the card turns Done.

Option B: an image you already made

1. On a finished image card, tap Use as....
2. Choose Reference for the next image.
3. OT Studio uploads the image and places it in the Image model's image input. When the current model lacks that input, OT Studio switches Image to FLUX dev first. A snackbar names the model that received the image.
4. Tap Open Image in the snackbar, or tap Image at the top.
5. Adjust prompt_strength in API CALL if needed, write the prompt, and send.

Tips

• The reference stays in place for every later image until you change it. Uncheck the image box in API CALL to stop using it.
• black-forest-labs/flux-1.1-pro has a similar input called image_prompt. It steers the style of a new image rather than repainting the reference.
• Uploaded photos live in your Replicate account's file storage, not on a public page.