# Imagen 3 Reference Image and Subject Customization **URL:** \ **Category:** Gemini API\ **Tags:** gemini-15, models, image-generation\ **Created:** [August 7, 2025, 10:59am UTC](https://discuss.ai.google.dev/t/imagen-3-reference-image-and-subject-customization/97125 "2025-08-07T10:59:51Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Hashir\_Jamal](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/hashir_jamal/32/22556_2.png) [@Hashir\_Jamal](https://discuss.ai.google.dev/u/Hashir_Jamal)\ **Post date:** [August 7, 2025, 10:59am UTC](https://discuss.ai.google.dev/t/imagen-3-reference-image-and-subject-customization/97125/1 "2025-08-07T10:59:51Z")
I am using **imagen-3.0-fast-generate-001** model to generate back to images, the images belong to the same story and I want them to be in sync with each other as they are different scenes of the same story. Major issue that I am facing is that the visual attributes of characters and objects differe slightly across images. What I want is them to look exactly the same across all images My Current Approach is , I am providing the hosted URL of the previous image, it generated and the in the system prompt I am clearly instructing it to maintain visual consistency with the previous image. Tech Stack : Firebase Genkit with Vertex AI Plugin Let me know if someone can suggest a better strategy to make Imagen staty consistency. ---
**Author:** ![Lalit\_Kumar](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/lalit_kumar/32/37058_2.png) [@Lalit\_Kumar](https://discuss.ai.google.dev/u/Lalit_Kumar)\ **Post date:** [August 13, 2025, 9:24am UTC](https://discuss.ai.google.dev/t/imagen-3-reference-image-and-subject-customization/97125/3 "2025-08-13T09:24:23Z")
Hello, Welcome to the Forum [Firebase support](https://firebase.google.com/support) is recommended to raise issues related to Firebase.