AI Photo Editor / Nano Banana vs Seedream

Photo editing test · 5 photos · 3 models

Nano Banana vs Seedream 4.5

We ran the same five photo edits through Nano Banana 2, Nano Banana 2 Lite and Seedream 4.5. See every result side by side, then try both models on your own photo.

1 free edit, no account
≈8 s per edit
Photos never stored

01Pick an edit

Describe any change in plain English.

02 · What should change?

High quality uses 2 credits

Light table

No photo handy? Try a sample — results load instantly

In short

In our side-by-side test of five photo edits, Nano Banana 2 followed every instruction and kept the original framing best; Seedream 4.5 also got all five and gave the most dramatic light at 2K, but re-framed some photos; Nano Banana 2 Lite handled small edits and missed two big scene changes. Use Nano Banana 2 when the photo must stay the same apart from the change, Seedream 4.5 for mood and ad-style shots.

Before and after

Results from this editor

A sneaker on a cluttered desk — before — A sneaker on a cluttered desk → “put the sneaker on a wet black rock by the sea at sunset, like a product ad”Nano Banana 2

A sneaker on a cluttered desk — after — A sneaker on a cluttered desk → “put the sneaker on a wet black rock by the sea at sunset, like a product ad”Nano Banana 2

A man walking down a city street in daylight — before — A man walking down a city street in daylight → “make it a snowy winter evening with warm street lights”Nano Banana 2

A man walking down a city street in daylight — after — A man walking down a city street in daylight → “make it a snowy winter evening with warm street lights”Nano Banana 2

A plain living room with a grey sofa — before — A plain living room with a grey sofa → “make the sofa dark green velvet and add a tall leafy plant in the corner”Seedream 4.5

A plain living room with a grey sofa — after — A plain living room with a grey sofa → “make the sofa dark green velvet and add a tall leafy plant in the corner”Seedream 4.5

Sample photos are AI-generated and show fictional people. Results are unretouched output from the editor.

How to

Three steps

Upload a photo (or tap a sample).
Type the change once.
Develop with Nano Banana 2, then switch to Seedream 4.5 and develop again to compare on your own photo.

All 15 results

Same photo, same instruction, one try each, nothing cherry-picked (3 Nov 2026). Tap any image to open it full size.

Original

Nano Banana 2 Lite

Nano Banana 2

Seedream 4.5

Photo	Instruction we typed
Living room	make the sofa dark green velvet and add a tall leafy plant in the corner
City street	make it a snowy winter evening with warm street lights
Sneaker on a desk	put the sneaker on a wet black rock by the sea at sunset, like a product ad
Café portrait	give her a red knit beanie and a cream wool scarf
Dog indoors	relight it with bright morning sun coming through the window

Scorecard

Test	Nano Banana 2 Lite (free / 1 credit)	Nano Banana 2 (2 credits)	Seedream 4.5 (2 credits)
Living room	Green sofa and plant, same framing	Green sofa and plant, same framing	Green sofa and plant, but the room is re-framed
Street to snow	Evening light, but no snow on the ground	Full snowy evening, same framing	Full snowy evening, slightly tighter crop
Sneaker ad	Failed: put a rock on the desk instead	Full sunset ad scene, shoe angle kept	Most dramatic sunset, shoe re-posed
Add clothes	Beanie and scarf, face unchanged	Beanie and scarf, face unchanged	Beanie and scarf, face unchanged
Relight	Bright and natural	Bright, warm window light	Strongest sun glow, tighter crop

	Nano Banana 2 Lite	Nano Banana 2	Seedream 4.5
Made by	Google	Google	ByteDance
Followed the instruction	3 of 5	5 of 5	5 of 5
Kept the framing	5 of 5	5 of 5	2 of 5
Output	Up to ≈1K	Up to ≈1K	Up to 2K
Time here	≈6–10 s	≈10 s	≈10–20 s
Cost here	Free once a day, then 1 credit	2 credits	2 credits

Which to use

Change one thing, keep everything else (real estate, outfits, removing clutter): Nano Banana 2.
Ad scenes, sunsets, moody relighting, or when you need 2K: Seedream 4.5.
Quick fixes and trying an idea: the free standard edit (Nano Banana 2 Lite).

Frequently asked questions

Is Nano Banana better than Seedream?

For edits where the rest of the photo must stay the same, Nano Banana 2 did better in our test because it kept the framing every time. Seedream 4.5 produced the more striking light and higher resolution. Both followed all five instructions.

Can I compare both on my own photo?

Yes. Upload once, develop with Nano Banana 2, then pick Seedream 4.5 and develop again. Each is 2 credits.

What about Nano Banana Pro?

We don’t run Nano Banana Pro (Gemini 3 Pro Image), so it isn’t in this test.

What does it cost?

One free standard edit per day without an account. After that, credits: a standard edit is 1 credit and Nano Banana 2 or Seedream 4.5 is 2 credits. Packs start at $9.90 for 120 credits, so a 2-credit edit is about 14–17¢. Failed edits are refunded automatically.

Do you keep my photos?

No. Your photo is sent to the AI model only to make the edit, then discarded. We never store the photo or the result on our servers, and we never use them for training. The edited photo is returned straight to your browser.

Models

Edit with another model

Nano Banana photo editorEdit with Google’s Nano Banana 2.Seedream photo editorEdit with Seedream 4.5, up to 2K.Gemini AI photo editorGemini image editing, no app or sign-in.

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