Head-to-head comparison

Nano Banana 2 vs. Seedream 5.0 Pro

Compare shared capability tests, arena scores with documented retrieval dates, task-specific image pricing, and verified specifications. Research benchmarks, preference arenas, and our n = 1 samples remain separate.

shared result series: 16
shared sample prompts: 4
latest arena retrieval: 2026-08-26

First image modelSecond image model

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 and Seedream 5.0 Pro
Attribute	Nano Banana 2	Seedream 5.0 Pro
Provider	Google	ByteDance
Released	February 2026	July 2026
Access	API, Web app	API, Web app
Lifecycle	Stable API since May 28, 2026. The arena entry names the earlier preview configuration Status source	No separate lifecycle notice
Weights	Proprietary	Proprietary
Parameters	Not published	Not published
Maximum output	4K	2K
Arena configuration	Gemini 3.1 Flash Image Preview	No separate configuration named
Text-to-image price	$67 per 1,000 images	$90 per 1,000 images
Editing price	$67 per 1,000 images	$90 per 1,000 images
Technical source	Model sourceVerified 2026-08-15	Model sourceVerified 2026-08-15

Nano Banana 2Seedream 5.0 Pro

Text to Image ArenaUSD per 1,000 images at 1,024 × 1,024 pixels

Nano Banana 2$67

Seedream 5.0 Pro$90

Image Editing ArenaUSD per 1,000 images at 1,024 × 1,024 pixels

Nano Banana 2$67

Seedream 5.0 Pro$90

Key to the marks:better valuebetter, but not conclusivetie

Prompt adherence and specialist tests

Shared capability benchmarks

Every matchup includes the same four Gradually sample tasks. For each task, one archived first output from every model is ranked in three differently ordered, model-blind passes. The published 0-100 value normalizes the mean rank. It must still be read as an n = 1 sample per model. No exact shared result from the integrated research benchmarks is available for this pair.

Nano Banana 2Seedream 5.0 Pro

Gradually sample test: Typography and layoutMean of three blind ranks across all 28 first outputs, n = 1 each

Nano Banana 286.4 / 100

Seedream 5.0 Pro40.7 / 100

Gradually sample test: Product photographyMean of three blind ranks across all 28 first outputs, n = 1 each

Nano Banana 229.6 / 100

Seedream 5.0 Pro74.1 / 100

Gradually sample test: Character and detailMean of three blind ranks across all 28 first outputs, n = 1 each

Nano Banana 218.5 / 100

Seedream 5.0 Pro58 / 100

Gradually sample test: InfographicMean of three blind ranks across all 28 first outputs, n = 1 each

Nano Banana 249.4 / 100

Seedream 5.0 Pro97.5 / 100

Key to the marks:better valuebetter, but not conclusivetie

Capability benchmark scores for Nano Banana 2 and Seedream 5.0 Pro
Benchmark	Nano Banana 2	Seedream 5.0 Pro
Gradually sample test: Typography and layout	Higher blind-rank score86.4 / 100 Mean rank: 4.67 (8 / 2 / 4) Five rubric scores Headline: 1.67 / 2 Subline: 1.67 / 2 Text control: 1.67 / 2 Visual brief: 1.33 / 2 Layout: 1.33 / 2	40.7 / 100 Mean rank: 17 (13 / 20 / 18) Five rubric scores Headline: 1.67 / 2 Subline: 1.67 / 2 Text control: 1.67 / 2 Visual brief: 1.33 / 2 Layout: 1 / 2
Gradually sample test: Product photography	29.6 / 100 Mean rank: 20 (24 / 17 / 19) Five rubric scores Subject: 1.33 / 2 Time: 1.33 / 2 Watch details: 1.33 / 2 Photography: 1.33 / 2 Exclusions: 1 / 2	Higher blind-rank score74.1 / 100 Mean rank: 8 (6 / 7 / 11) Five rubric scores Subject: 1.33 / 2 Time: 1.33 / 2 Watch details: 1.33 / 2 Photography: 1.33 / 2 Exclusions: 1.33 / 2
Gradually sample test: Character and detail	18.5 / 100 Mean rank: 23 (24 / 18 / 27) Five rubric scores Scene: 1.33 / 2 Wardrobe: 1.33 / 2 Anatomy: 1 / 2 Props: 0.67 / 2 Environment: 0.67 / 2	Higher blind-rank score58 / 100 Mean rank: 12.33 (17 / 11 / 9) Five rubric scores Scene: 1.33 / 2 Wardrobe: 1.33 / 2 Anatomy: 1 / 2 Props: 1 / 2 Environment: 1 / 2
Gradually sample test: Infographic	49.4 / 100 Mean rank: 14.67 (16 / 14 / 14) Five rubric scores Title: 1.67 / 2 Sequence: 1 / 2 Labels: 1 / 2 Diagram: 1.67 / 2 Clarity: 1 / 2	Higher blind-rank score97.5 / 100 Mean rank: 1.67 (1 / 3 / 1) Five rubric scores Title: 1.67 / 2 Sequence: 1.67 / 2 Labels: 1.67 / 2 Diagram: 1.67 / 2 Clarity: 1.67 / 2
Key to the marks:better valuebetter, but not conclusivetie

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.

12 shared result series

Nano Banana 2Seedream 5.0 Pro

Text to Image ArenaBlind preference from the same prompt, higher is better

Nano Banana 21,321 Elo

Seedream 5.0 Pro1,280 Elo

Image Editing ArenaBlind preference from the same prompt, higher is better

Nano Banana 21,250 Elo

Seedream 5.0 Pro1,248 Elo

LMArena Text to Image: 3D modelingBlind preference from the same prompt, higher is better

Nano Banana 21,258.705

Seedream 5.0 Pro1,244.482

LMArena Text to Image: ArtBlind preference from the same prompt, higher is better

Nano Banana 21,250.508

Seedream 5.0 Pro1,265.974

LMArena Text to Image: CartoonBlind preference from the same prompt, higher is better

Nano Banana 21,266.735

Seedream 5.0 Pro1,271.272

LMArena Text to Image: Commercial designBlind preference from the same prompt, higher is better

Nano Banana 21,272.164

Seedream 5.0 Pro1,232.843

LMArena Text to Image: OverallBlind preference from the same prompt, higher is better

Nano Banana 21,263.056

Seedream 5.0 Pro1,256.865

LMArena Text to Image: PhotorealismBlind preference from the same prompt, higher is better

Nano Banana 21,269.812

Seedream 5.0 Pro1,277.69

LMArena Text to Image: PortraitsBlind preference from the same prompt, higher is better

Nano Banana 21,266.805

Seedream 5.0 Pro1,287.35

LMArena Text to Image: Text renderingBlind preference from the same prompt, higher is better

Nano Banana 21,294.784

Seedream 5.0 Pro1,252.031

LMArena Image Editing: Multi-image editingBlind preference from the same prompt, higher is better

Nano Banana 21,364.764

Seedream 5.0 Pro1,413.844

LMArena Image Editing: OverallBlind preference from the same prompt, higher is better

Nano Banana 21,386.267

Seedream 5.0 Pro1,394.014

Key to the marks:better valuebetter, but not conclusivetie

Arena benchmark scores for Nano Banana 2 and Seedream 5.0 Pro
Benchmark	Nano Banana 2	Seedream 5.0 Pro	Source
Text to Image Arena	Higher score1,321 Elo Rank 4, 95% confidence interval: ±9, 15,335 ratings	1,280 Elo Rank 11, 95% confidence interval: ±9, 12,099 ratings	Artificial AnalysisRetrieved 2026-08-26
Image Editing Arena	No clear lead1,250 Elo Rank 7, 95% confidence interval: ±7, 12,690 ratings	1,248 Elo Rank 9, 95% confidence interval: ±10, 3,838 ratings	Artificial AnalysisRetrieved 2026-08-26
LMArena Text to Image: 3D modeling	No clear lead1,258.705 Rank 3, 95% confidence interval: ±11.62, 2,907 ratings	1,244.482 Rank 6, 95% confidence interval: ±12.4, 2,280 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Art	1,250.508 Rank 8, 95% confidence interval: ±9.92, 4,154 ratings	No clear lead1,265.974 Rank 5, 95% confidence interval: ±10.13, 3,711 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Cartoon	1,266.735 Rank 8, 95% confidence interval: ±7.6, 10,445 ratings	No clear lead1,271.272 Rank 5, 95% confidence interval: ±7.94, 9,462 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Commercial design	Higher score1,272.164 Rank 4, 95% confidence interval: ±7.4, 10,316 ratings	1,232.843 Rank 12, 95% confidence interval: ±7.55, 9,462 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Overall	No clear lead1,263.056 Rank 5, 95% confidence interval: ±5.24, 27,910 ratings	1,256.865 Rank 7, 95% confidence interval: ±5.11, 26,510 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Photorealism	1,269.812 Rank 6, 95% confidence interval: ±7.28, 11,229 ratings	No clear lead1,277.69 Rank 5, 95% confidence interval: ±7.63, 10,332 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Portraits	1,266.805 Rank 7, 95% confidence interval: ±9.15, 5,554 ratings	Higher score1,287.35 Rank 4, 95% confidence interval: ±9.48, 4,809 ratings	LMArenaRetrieved 2026-08-26
LMArena Text to Image: Text rendering	Higher score1,294.784 Rank 5, 95% confidence interval: ±7.73, 9,489 ratings	1,252.031 Rank 12, 95% confidence interval: ±7.82, 8,809 ratings	LMArenaRetrieved 2026-08-26
LMArena Image Editing: Multi-image editing	1,364.764 Rank 5, 95% confidence interval: ±4.86, 37,577 ratings	Higher score1,413.844 Rank 2, 95% confidence interval: ±6.39, 13,473 ratings	LMArenaRetrieved 2026-08-26
LMArena Image Editing: Overall	1,386.267 Rank 10, 95% confidence interval: ±3.71, 117,943 ratings	Higher score1,394.014 Rank 6, 95% confidence interval: ±3.86, 102,314 ratings	LMArenaRetrieved 2026-08-26
Key to the marks:better valuebetter, but not conclusivetie

Visual comparison

Sample images

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

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. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/flash-image-3.1, generated Aug 14, 2026, 12:15 PM. Source
Seedream 5.0 Pro. Provider OpenRouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.045000, model ID bytedance-seed/seedream-5-0-pro, generated Aug 14, 2026, 1:32 PM. Source

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

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Nano Banana 2, image SHA 256: 5d3a70ed3fe3328484725565d9c91fb25fc7f745bd66872dae432444493a83de

Nano Banana 2, request SHA 256: 406e70dda817fa504900359d5c374ebb06fc8ea29f34c8a15f630e9a10489aec

Seedream 5.0 Pro, image SHA 256: 06eb1919b5157094ba0ecf0ddcfb921ebbfc937c496cee7627f4717fdd4a7d90

Seedream 5.0 Pro, request SHA 256: b87da08d3dc323cc39777805d520115b9c2a5c2c546e4255f76350cfced21c93

Infographic

Numbers, labels, and visual organization

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.

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

Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Nano Banana 2, image SHA 256: 66123dd4e8cd5d22ecdca9cca8e4c5853a8046370aa4861ffee807a8c122c769

Nano Banana 2, request SHA 256: 10e973caab6f314ec731d9d377b19f5d51f279e9e2962133c49682bfbba3fe3d

Seedream 5.0 Pro, image SHA 256: bec4d5de9deed41729f7e7d93f77450e76ddd0f579b5f0c74244a25e0c03a224

Seedream 5.0 Pro, request SHA 256: 6378a9ed943b1c15141e5f0f7889734e6c1dd936829106b7673862af0dc0618b

Product photography

Materials, reflections, and fine details

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.

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

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Nano Banana 2, image SHA 256: 509871921c450f6f07ec28f91a380992db1b3017108fd5928fe0aa9670a1ecdc

Nano Banana 2, request SHA 256: 631ce921c9772c7c2109900c8662471564a871def8e70f50ce29ce83ab71daab

Seedream 5.0 Pro, image SHA 256: fd38abd0e7bde742e8e859fbcbc76e4e96f443673445378a42364bc56382ac57

Seedream 5.0 Pro, request SHA 256: fd964253baf8416825b563e8e84be2ed24f4f650f2f364ca15beb60541050585

Typography and layout

Legible text, hierarchy, and composition

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. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/flash-image-3.1, generated Aug 14, 2026, 1:59 PM. Source
Seedream 5.0 Pro. Provider OpenRouter, aspect ratio 1:1, resolution 1K, n=1, seed=provider random, actual cost $0.045000, model ID bytedance-seed/seedream-5-0-pro, generated Aug 14, 2026, 2:05 PM. Source

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

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Nano Banana 2, image SHA 256: 06ae79c07d1604d3da3bbfa80bac73ac15c88af5cb8c013faaf5c9ea93092305

Nano Banana 2, request SHA 256: 6f1909c093d741b97bc2b4fe76e889009776dbe8635d2a14dbedd89bb4cae8fb

Seedream 5.0 Pro, image SHA 256: 4e9693d5da3e445b69cc5da6f869caddb88ca5560f010556b168ac8e9aaa70b2

Seedream 5.0 Pro, request SHA 256: 4158892e26a143eaab8c23a0c9d6897a7510af309ae06a2c234f6bbc41854e2c

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

Compare Nano Banana 2 and Seedream 5.0 Pro with other important image models using the same benchmark and sample methodology.

View the complete image model comparison

Nano Banana 2 vs. Seedream 5.0 Pro

Change image model selection

General specifications and task-specific pricing

Shared capability benchmarks

Shared arena benchmarks

Sample images

Character and detail

Infographic

Product photography

Typography and layout

An Elo score is not a verdict on creativity

Related image model comparisons