Generative Fill is no longer just about erasing small distractions or extending a background. With new partner models like Gemini 2.5 Nano Banana and FLUX Kontext Pro built directly into Photoshop, you can describe an entire scene change in plain language and watch the software rebuild your image around your idea.
Coming to you from Aaron Nace with Phlearn, this practical video walks you through how these partner models behave on the same images with the same prompts so you can see where each one shines. Nace starts with a crowded market scene where one subject is great and everything else is a distraction, then shows how a simple selection plus a conversational prompt clears the background and rebuilds the booth without any manual masking. You watch Gemini 2.5 Nano Banana remove every extra person and fill in realistic details, and then you see FLUX Kontext Pro try the same job so you can compare framing and fidelity. The differences are not subtle, and you begin to see where one model favors composition changes while the other stays loyal to the original shot.
From there, the video moves into a classic headache: removing a complex fence behind a portrait subject. Traditionally you would drag a selection brush over every wire, run Generative Fill on a Firefly Image 3 model, and wait, repeating as needed when the background looks off. Nace shows that with Nano Banana you can select the entire image, type a single prompt to remove the fence and add clouds, and get a natural, believable result in one go. You also see the limitation that comes with this power, namely that Nano Banana gives you one variation per generation while Firefly Image 3 still offers three. Then Nace swaps to FLUX Kontext Pro on the same file so you can judge how it handles realism and landscape continuity compared to Google’s model.
The tutorial does not stop at cleanup. Once you are comfortable with “remove this, add that,” Nace pushes into full scene transformations using only text. He takes a calm tree-lined road and asks Nano Banana to add a Volkswagen bus, shift the time of day to sunset, and change the season to fall, all in one edit. You see the same road and trees, but the atmosphere is completely different, and each new variation nudges the look further without losing the underlying structure of the photograph. After that, FLUX Kontext Pro gets the same instructions, and its more grounded, photorealistic style offers a very different mood that might fit a commercial brief better than the punchier Nano Banana output.
Later in the video, Nace combines everything into large, all-at-once edits where a street becomes a park, cars disappear, telephone wires vanish, clouds appear, and people are added around a house listing shot using one detailed prompt instead of a dozen small steps. You see where the models struggle, like slightly odd poses on generated people, and how cycling a few more generations or switching to another partner model can solve those problems without touching a selection tool. The bigger takeaway is that you can now think in terms of complete scene direction rather than isolated retouch tasks, especially when you need quick concept options for clients. Check out the video above for the full rundown from Nace.
