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Nano Banana (Gemini 2.5 Flash Image)vs.Kandinsky 3.1

Which one is better?

We have not tested Kandinsky 3.1 ourselves yet. Neither is in the arena. Neither has an API price.

Same prompt, two images

Same task, the first image of each.

Nano Banana (Gemini 2.5 Flash Image): Typography and layout, first image from the fixed test run
Nano Banana (Gemini 2.5 Flash Image)58 out of 100

No image from the four fixed tasks for Kandinsky 3.1 yet.This model does not yet have a complete GraduallyBench run.

Kandinsky 3.1not tested yet

Result for “Typography and layout”:only Nano Banana (Gemini 2.5 Flash Image) tested

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.

Missing image run for Kandinsky 3.1

This model does not yet have a complete GraduallyBench run. Run the missing fixed tasks, archive the first output of each, and evaluate them blind.

Documentation

The numbers at a glance

Arena ratingfrom votes by users · higher is better
n/a

Nano Banana (Gemini 2.5 Flash Image)

not in the arena

n/a

Kandinsky 3.1

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
54

Nano Banana (Gemini 2.5 Flash Image)

Rank 44 of 74

n/a

Kandinsky 3.1

not tested yet

Price per imagedollars through the API · lower is better
n/a

Nano Banana (Gemini 2.5 Flash Image)

no API price

n/a

Kandinsky 3.1

no API price

Ranks among the 22 image models with an arena rating and the 74 with a GraduallyBench run; prices compared with 28 models with an API price.

Nano Banana (Gemini 2.5 Flash Image)

Subscription
n/a No plan in Germany names exactly this model.
Via API
No API price known. Access: API.
Weights
unknown.

Kandinsky 3.1

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

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

GraduallyBench from Nov 1, 2026 · Subscription database from Sep 29, 2026 (34 days old)

All data side by side

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

KennzahlNano Banana (Gemini 2.5 Flash Image)Kandinsky 3.1
Ratings
Arena ratingfrom votes by users, higher is bettern/an/a
Arena rankn/an/a
Arena votesmore votes, a safer ratingn/an/a
GraduallyBenchour own rating, 0 to 10054n/a
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition58n/a
Product photographyMaterials, reflections, and fine details77n/a
Character and detailAnatomy, clothing, and spatial consistency54n/a
InfographicNumbers, labels, and visual organization27n/a
API price
Per imagelower is bettern/an/a
100 imagesn/an/a
Profile
ReleasedOct 2, 2025n/a
Weightsopen means: runs locallyunknownopen
LifecycleActive stable API ID; earliest announced shutdown date is March 15, 2027no notice
AccessAPIlocal
Parametersnot publishednot published
Largest outputnot consistently publishednot consistently published
Plans in Germanynaming exactly this modeln/an/a

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

Sources: Nano Banana (Gemini 2.5 Flash Image) model source, status source (verified Nov 1, 2026) · Kandinsky 3.1 model source (verified Nov 1, 2026)

Arena ratings by category

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

No shared arena score in the stored snapshot

The stored benchmark database contains no measurement for Nano Banana (Gemini 2.5 Flash Image) and Kandinsky 3.1 from the same arena and category. Older model versions are not used as substitutes.

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