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Head-to-head comparison

Nano Banana 2 Lite vs. Seedream 4.0

Compare arena scores with documented retrieval dates, task-specific image pricing, and verified specifications. Text-to-image generation and image editing are never blended into an artificial overall score.

2

shared result series

4

shared sample prompts

2026-08-15

latest arena retrieval

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Specifications and cost

General specifications and task-specific pricing

A model can have one price for generating new images and another for editing. Prices therefore remain tied to the corresponding arena configuration.

Specifications and pricing for Nano Banana 2 Lite and Seedream 4.0
AttributeNano Banana 2 LiteSeedream 4.0
ProviderGoogleByteDance
ReleasedJune 2026September 2025
AccessAPI, Web appAPI, Web app
LifecycleNo separate lifecycle noticeNo separate lifecycle notice
WeightsProprietaryProprietary
ParametersNot publishedNot published
Maximum output1K4K
Arena configurationGemini 3.1 Flash Lite ImageNo separate configuration named
Text-to-image price$33.6 per 1,000 images$30 per 1,000 images
Editing price$33.6 per 1,000 images$30 per 1,000 images
Technical sourceModel sourceVerified 2026-08-15Model sourceVerified 2026-08-15
Nano Banana 2 LiteSeedream 4.0
Text to Image ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
Nano Banana 2 Lite$33.6
Seedream 4.0$30Lower price
Image Editing ArenaUSD per 1,000 images at 1,024 × 1,024 pixels
Nano Banana 2 Lite$33.6
Seedream 4.0$30Lower price

Independent preference tests

Shared arena benchmarks

Artificial Analysis and Arena derive scores from blind comparisons. Raters see outputs for the same prompt and choose the image they prefer. Separate series cover text rendering, photorealism, portraits, art, commercial design, and image editing. Confidence intervals indicate how certain a measured lead is.

2 shared result series
Nano Banana 2 LiteSeedream 4.0
Text to Image ArenaBlind preference from the same prompt, higher is better
Nano Banana 2 Lite1,292 EloHigher arena score
Seedream 4.01,221 Elo
Image Editing ArenaBlind preference from the same prompt, higher is better
Nano Banana 2 Lite1,200 EloNo clear arena lead
Seedream 4.01,185 Elo
Arena benchmark scores for Nano Banana 2 Lite and Seedream 4.0
BenchmarkNano Banana 2 LiteSeedream 4.0Source
Text to Image Arena
1,292 EloHigher arena score
Rank 7, 95% confidence interval: ±9, 13,652 ratings
1,221 Elo
Rank 17, 95% confidence interval: ±11, 4,014 ratings
Artificial AnalysisRetrieved 2026-08-15
Image Editing Arena
1,200 EloNo clear arena lead
Rank 16, 95% confidence interval: ±8, 8,704 ratings
1,185 Elo
Rank 25, 95% confidence interval: ±7, 11,378 ratings
Artificial AnalysisRetrieved 2026-08-15

Visual comparison

Sample images from documented runs

Our images complement preference data, but do not replace it. The prompt, request count, and selection rule match. Provider resolution, quality tier, randomness, and prompt processing remain visible limitations, so this is not a fully controlled laboratory test.

Largely standardized comparison protocol. Both models receive the same archived prompt, exactly one request, and the first result counts. Files are normalized to 1,024 × 1,024 pixels without cropping. Provider resolution, randomness, quality tier, and prompt processing can still differ. These images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

Anatomy, clothing, and spatial consistency

Nano Banana 2 Lite, Character and detail
Nano Banana 2 Lite
Seedream 4.0, Character and detail
Seedream 4.0
Prompt and settings

Create a square cinematic full-body portrait of a fictional bicycle courier waiting under a transparent umbrella at a rainy tram stop in Hamburg at blue hour. She wears a mustard raincoat, navy trousers, red sneakers, a silver helmet, and carries a teal messenger bag. Keep both hands visible, render the bicycle correctly, use realistic wet-street reflections, and include no readable brand names.

Nano Banana 2 Lite. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/flash-image-3.1-lite, generated Aug 14, 2026, 12:21 PM. Source
Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 12:24 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Nano Banana 2 Lite, image SHA 256: 6c7d17b2a84129cbeba7d52c8de703773e9296562d9d603688256d2717e65a0c

Nano Banana 2 Lite, request SHA 256: c8a36467199e361b900613c1db90cb99b0f552ddb7f7c7f2dd4aeb51ddb5ee1a

Seedream 4.0, image SHA 256: 81b5aa023fa252472878015448b5ee1cefcbc61844dd6cff98997685d7ab1511

Seedream 4.0, request SHA 256: 84dbdb6b71e48c5944f2d15aa4069a994358e4f10f81fa84cdef4974deee2317

Infographic

Numbers, labels, and visual organization

Nano Banana 2 Lite, Infographic
Nano Banana 2 Lite
Seedream 4.0, Infographic
Seedream 4.0
Prompt and settings

Create a square German infographic titled SO FUNKTIONIERT PHOTOSYNTHESE. Show exactly four numbered steps in this order: 1 LICHT, 2 WASSER, 3 CO₂, 4 ZUCKER + SAUERSTOFF. Use a clean editorial science style with one plant cross-section, simple arrows, high contrast, legible labels, and no other text.

Nano Banana 2 Lite. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/flash-image-3.1-lite, generated Aug 14, 2026, 12:21 PM. Source
Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 12:25 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Nano Banana 2 Lite, image SHA 256: 11d8b5ddf15becefa6e4e32fca21729ff7d57f561a10e3a2b4b6f5c7a0aed6ef

Nano Banana 2 Lite, request SHA 256: 0e6096a9f082a718e45fcf3733bf3ffc92cb6c9db66b8c2c73d6c764ea0b15c8

Seedream 4.0, image SHA 256: 63dcddf4bf7bb58ea0c67eea96f2c71834158568f29ed3b7f2523b56a91e6526

Seedream 4.0, request SHA 256: 3cdb665a8b6ba558cedce86e937f28b5daa3b3e7a8af57fe9562e13cab212c02

Product photography

Materials, reflections, and fine details

Nano Banana 2 Lite, Product photography
Nano Banana 2 Lite
Seedream 4.0, Product photography
Seedream 4.0
Prompt and settings

Create a square premium product photograph of a brushed titanium wristwatch standing upright on dark green marble. The watch has a cream dial, thin black hands set to 10:10, twelve distinct hour markers, a realistic crown, and a dark brown leather strap. Soft window light from the left, controlled reflections, shallow depth of field, no text, no logo, no extra objects.

Nano Banana 2 Lite. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/flash-image-3.1-lite, generated Aug 14, 2026, 12:21 PM. Source
Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 12:24 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Nano Banana 2 Lite, image SHA 256: 30d9b09b92917eca84675448260a083ad368d9ea25376dabccac0f526f3a3ab7

Nano Banana 2 Lite, request SHA 256: cab5c6b0ea5c96eb96b640e581e0fe296421c7fffec3aad04f9394c978814ca1

Seedream 4.0, image SHA 256: 1fbad61d03b05e6cd8523e76409983e86c11c74fca2fa1a14d20f07f0d801519

Seedream 4.0, request SHA 256: 55ce222b205d1832a107db6db7f13941b81298037e4bdf6c0d25054a1dc96c7c

Typography and layout

Legible text, hierarchy, and composition

Nano Banana 2 Lite, Typography and layout
Nano Banana 2 Lite
Seedream 4.0, Typography and layout
Seedream 4.0
Prompt and settings

Create 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.

Nano Banana 2 Lite. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/flash-image-3.1-lite, generated Aug 14, 2026, 2:00 PM. Source
Seedream 4.0. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID ByteDance-Seed/Seedream-4.0, generated Aug 14, 2026, 2:01 PM. Source

Protocol gradually-image-comparison-v1, selection rule: first result.

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Nano Banana 2 Lite, image SHA 256: 9fab80fe1ad268b9ceceb4ef61ef1dd0e965dd3f28d377af7cf9cf201fdf47fa

Nano Banana 2 Lite, request SHA 256: 942506d572642220473dd80be80ff16950d6d11f31fab2b5c3145f3f2a9b2513

Seedream 4.0, image SHA 256: 029be40f71522352246ad0de0de2e6c1ed2e45608f59c4f0e1be87b4dc2353c1

Seedream 4.0, request SHA 256: b2353ce00afff8f1dad912b51b418a7ea7da741b587814625f1ca7fc492b02c5

How to read this comparison

An Elo score is not a verdict on creativity

A higher arena score means this specific configuration was preferred more often in blind comparisons.

Typography, character consistency, local execution, licensing, and price may matter more to your workload than overall visual appeal.

Prices cover 1,000 images at 1,024 × 1,024 pixels using settings documented by Artificial Analysis. Subscriptions and special rates are excluded.

More matchups

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