Nano Banana 2vs.Stable Diffusion 3.5 Large

Which one is better?

Nano Banana 2 leads in both ratings: in our own test and in the arena. Stable Diffusion 3.5 Large has no API price.

Test images

Same task, the first image of each. The task with the biggest difference is preselected.

Nano Banana 2: Typography and layout, first image from the fixed test run — Nano Banana 2100 out of 100

Stable Diffusion 3.5 Large: Typography and layout, first image from the fixed test run — Stable Diffusion 3.5 Large31 out of 100

Result for “Typography and layout”:Nano Banana 2 ahead

Prompt given to both modelsCreate a square editorial poster for an imaginary night train called MONDFALTER. Show the exact German headline MONDFALTER and the exact subline BERLIN NACH LISSABON. Use a restrained midnight-blue and warm-cream palette, one stylized moth, strong Swiss-grid typography, generous negative space, and no additional words or logos.

What the rating looks at: Legible text, hierarchy, and composition.

“Ahead”: better in all three rating rounds. “Slightly ahead”: a higher value, but not in every round.

Test protocol of the images

Each test attempt uses the same archived prompt and one request. The first output of that attempt counts. Repeats after technical test failures are disclosed for the affected images. Files are normalized to 1,024 × 1,024 pixels without cropping. Provider resolution, randomness, quality tier and prompt processing can still differ. The images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

Nano Banana 2: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:15 PM. Source

Stable Diffusion 3.5 Large: fal, requested 1024x1024, n=1, seed=7087247023770270000, estimated cost $0.068157, generated Aug 14, 2026, 2:37 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Nano Banana 2 image SHA 256: 5d3a70ed3fe3328484725565d9c91fb25fc7f745bd66872dae432444493a83de

Stable Diffusion 3.5 Large image SHA 256: e748006fe56e442ad347e3f994f18b86ee1739f20dcee063aa7a03ee710c5d54

Infographic

Nano Banana 2: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:15 PM. Source

Stable Diffusion 3.5 Large: fal, requested 1024x1024, n=1, seed=12166653711354006000, estimated cost $0.068157, generated Aug 14, 2026, 2:37 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Nano Banana 2 image SHA 256: 66123dd4e8cd5d22ecdca9cca8e4c5853a8046370aa4861ffee807a8c122c769

Stable Diffusion 3.5 Large image SHA 256: 4eb0fd741ef42e6d3fee4b1280cdfb098a0a04009b139051963895892e349f1e

Product photography

Nano Banana 2: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:15 PM. Source

Stable Diffusion 3.5 Large: fal, requested 1024x1024, n=1, seed=13346308312015933000, estimated cost $0.068157, generated Aug 14, 2026, 2:37 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Nano Banana 2 image SHA 256: 509871921c450f6f07ec28f91a380992db1b3017108fd5928fe0aa9670a1ecdc

Stable Diffusion 3.5 Large image SHA 256: ea9a7401dee8859ec2cb96af9f7ca29a177ef2202f52f629d8ce9f5839bd4061

Typography and layout

Nano Banana 2: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 1:59 PM. Source

Stable Diffusion 3.5 Large: fal, requested 1024x1024, n=1, seed=16632333557910893000, estimated cost $0.068157, generated Aug 14, 2026, 2:37 PM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Nano Banana 2 image SHA 256: 06ae79c07d1604d3da3bbfa80bac73ac15c88af5cb8c013faaf5c9ea93092305

Stable Diffusion 3.5 Large image SHA 256: e2994b1883a245b1c8c447957d121ea89d93aafff149029aa4e8507dbb769f9a

The numbers at a glance

Arena ratingfrom votes by users · higher is better

1,257

Nano Banana 2

Rank 8 of 21

938

Stable Diffusion 3.5 Large

Rank 21 of 21

GraduallyBenchour own rating, 0 to 100 · higher is better

Nano Banana 2

Rank 51 of 108

Stable Diffusion 3.5 Large

Rank 87 of 108

Price per imagedollars through the API · lower is better

$0.067

Nano Banana 2

fairly expensive

n/a

Stable Diffusion 3.5 Large

no API price

Ranks among the 21 image models with an arena rating and the 108 with a GraduallyBench run; prices compared with 28 models with an API price.

Nano Banana 2

Subscription: Free to use at Google (Google AI Free, with limited credits), more from €4.99 a month (Google AI Plus, with limited credits). Through other providers from ≈ €6.36 a month (ElevenLabs Starter, with limited credits). 73 plans in Germany.
Via API: $0.067 per image, 100 images $6.70.

Stable Diffusion 3.5 Large

Subscription: n/a No plan in Germany names exactly this model.
Via API: No API price known. Access: API, local.
License: Open weights.

Subscriptions only count plans that name exactly this model. Subscription prices include VAT, API prices are in dollars.

Arena rating (LMArena) from Nov 6, 2026 · GraduallyBench from Nov 3, 2026 · API prices from Nov 6, 2026 · Subscription database from Sep 29, 2026 (38 days old)

All data side by side

The better value is bold. For ratings only when the gap is clear.

Kennzahl	Nano Banana 2	Stable Diffusion 3.5 Large
Ratings
Arena ratingfrom votes by users, higher is better	1,257	938
Arena rank	Rank 8 of 21	Rank 21 of 21
Arena votesmore votes, a safer rating	77,495	23,396
GraduallyBenchour own rating, 0 to 100	61	27
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	100	31
Product photographyMaterials, reflections, and fine details	45	17
Character and detailAnatomy, clothing, and spatial consistency	36	23
InfographicNumbers, labels, and visual organization	63	39
API price
Per imagelower is better	$0.067	n/a
100 images	$6.70	n/a
Profile
Released	February 2026	Oct 22, 2024
Weightsopen means: runs locally	proprietary	open
Lifecycle	Previous generation to Nano Banana 2.1; Google recommends Nano Banana 2.1 for all new projects, the stable API has existed since May 28, 2026 and no shutdown is announced, the arena entry names the earlier pre-release configuration	no notice
Access	API, Web app	API, local
Parameters	not published	8.1 billion
Largest output	4K	1 Megapixel
Plans in Germanynaming exactly this model	73	n/a

API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.

Sources: Nano Banana 2 model source, status source (verified Aug 15, 2026) · Stable Diffusion 3.5 Large model source (verified Aug 15, 2026)

Arena ratings by category

From blind votes on LMArena. “Ahead” means the lead is clear.

Arena rating per categoryfrom votes by users · higher is betterNano Banana 2Stable Diffusion 3.5 Large

Text to Image: 3D modeling1,256963ahead

Text to Image: Art1,240997ahead

Text to Image: Cartoon1,260945ahead

Text to Image: Commercial design1,268937ahead

Text to Image: Overall1,257938ahead

Text to Image: Photorealism1,261928ahead

Text to Image: Portraits1,255942ahead

Text to Image: Text rendering1,294921ahead

LMArena from Nov 6, 2026

All individual values with sources

Rating	Nano Banana 2	Stable Diffusion 3.5 Large	Source
Text to Image: 3D modeling	1,256	963	LMArenaRetrieved Nov 6, 2026
Text to Image: Art	1,240	997	LMArenaRetrieved Nov 6, 2026
Text to Image: Cartoon	1,260	945	LMArenaRetrieved Nov 6, 2026
Text to Image: Commercial design	1,268	937	LMArenaRetrieved Nov 6, 2026
Text to Image: Overall	1,257	938	LMArenaRetrieved Nov 6, 2026
Text to Image: Photorealism	1,261	928	LMArenaRetrieved Nov 6, 2026
Text to Image: Portraits	1,255	942	LMArenaRetrieved Nov 6, 2026
Text to Image: Text rendering	1,294	921	LMArenaRetrieved Nov 6, 2026

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