description
Generative Fill has always worked the same way: make a careful selection, describe the one thing you want in it, generate. That model rewards precision and punishes ambition — four changes meant four rounds of selecting and prompting.
The new models in Photoshop Beta invert both halves. Gemini 2.5 Nano Banana and Flux Kontext Pro want the whole canvas selected, and they take several instructions at once. Use Nano Banana for general image work and Flux Kontext Pro for anything involving text or type.
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Image Source
Christian Lue,
Damir Semirkhanov,
Dmitry Spravko,
Hamed Farahpour,
Jay Soundo,
Jonathan Borba,
Nathan Gordon
via Unsplash


Photoshop Beta Turns Generative Fill Into a Conversation
Generative Fill has always worked the same way: make a careful selection, describe the one thing you want in it, generate. That model rewards precision and punishes ambition — four changes meant four rounds of selecting and prompting.
The new models in Photoshop Beta invert both halves of that. Gemini 2.5 Nano Banana and Flux Kontext Pro want the whole image selected, and they will happily take several instructions at once. “Remove the logo from her shirt and make the sky more interesting with some clouds” is a single prompt now, and the reason it works is that the model can see the entire photograph while it does both.
What Actually Changed
Select Everything, Not the Thing
This reverses the habit Firefly taught you. These models reason about the whole scene, so a tight selection starves them of exactly the context that makes them good.
One Prompt, Several Instructions
You can chain requests in one sentence. Think about briefing a retoucher rather than filling in a form.
One Result Per Click, Not Three
Firefly returns three variations. These return a single, more considered generation — so iteration means clicking Generate again rather than picking from a set.
Start by Selecting the Whole Canvas
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Open Your Image in Photoshop Beta
These models are beta features, so expect them to move and improve.
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Press Cmd/Ctrl + A
Select all. The single most important step, and the one that feels wrong if you’ve been using Generative Fill for a while. Giving the model the full frame is what lets it match lighting across a change and understand what relates to what.
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Open Generative Fill From the Contextual Task Bar
Same entry point as before.
Write a Brief, Not a Keyword
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Describe Everything You Want in One Prompt
“Remove the logo from her shirt and make the sky more interesting with nice clouds.” Two jobs, one instruction, one generation.
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Use Natural Sentences
Noun-phrase prompts were what Firefly wanted. These models respond better to how you’d actually explain the job to a person, including qualifiers like “a bit more” or “subtle”.
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Be Specific About What Stays the Same
Since the model can change anything in the frame, saying what should be left alone is now a useful part of the prompt rather than an odd thing to write.
Pick the Right Model
Gemini 2.5 Nano Banana
The default choice for general image work. It produces the most realistic and convincing results across most transformations — lighting changes, object replacement, scene adjustments.
Flux Kontext Pro
Its distinctive strength is text and type. Anything involving lettering inside the image — a sign, packaging, a shopfront — is where it beats the alternatives, and that has always been generative AI’s weakest area.
Firefly
Still there, still the one that gives you three options at a time. Useful when you want choices rather than one considered answer.
Generate, Then Iterate
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Choose Your Model and Click Generate
The result arrives as a new generative layer above your original.
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Toggle the Layer to Compare
Because it’s a separate layer, switching between before and after is instant — and worth doing at full size before you accept anything.
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Click Generate Again for a Different Attempt
Each click is a fresh interpretation of the same prompt, and each one spends a generative credit. Two or three attempts is normal; if the third is still wrong, the prompt is the problem rather than the model.
Every generation costs credits, and the different models are not priced identically — our free guide to generative credits sets out what each AI tool in Photoshop and Lightroom actually costs.
Where It Goes Wrong
Making a Tight Selection Out of Habit
The instinct built by two years of Generative Fill is now the wrong one for these models. Select all.
Prompting in Keywords
“Clouds sky dramatic” gets you less than a sentence describing what you actually want.
Using Nano Banana for Text
Lettering is Flux Kontext Pro’s specific advantage. Switch models rather than re-prompting.
Expecting Three Variations
One result per click is the design, not a failure. Click again.
Forgetting It’s Beta
Model availability, naming and behaviour will all change. Don’t build a client workflow on it yet.
More Free AI Tutorials
If AI editing is what you’re following, these free tutorials go further:
- Photoshop AI Partners: Nano Banana and More — Day 7
- Explore Generative Fill in Photoshop — Day 1
- How to Use Generative Expand in Photoshop — Day 2
- The full 10 Days of AI in Photoshop & Lightroom series
The Skill Is Shifting From Selecting to Describing
It’s worth naming what’s actually happening here, because it’s easy to miss under the model names. For most of Photoshop’s history, the hard part of an edit was isolating the thing you wanted to change. Every tool from the Magic Wand to Select Subject existed to solve that.
These models make the selection irrelevant — you hand over the whole picture — and move the difficulty to describing the result you want with enough precision that a machine can act on it. That’s a different skill, closer to art direction than to retouching, and it’s the one worth practising now.
Try It on One Image Today
Open something in Photoshop Beta, press Cmd/Ctrl + A, open Generative Fill, and ask for two changes in one sentence. Download the eight free sample images and eight PSDs and run the same prompt through Nano Banana and then Flux Kontext Pro to see the difference for yourself — then try one containing text and watch the gap widen. For everything Photoshop does that no prompt will do for you, our PRO Photoshop Learning Path runs to 11 courses and 53 hours.
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