Head-to-head comparison

GPT Image 1.5 vs. Nano Banana 2 Lite

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: 2026-09-22

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 GPT Image 1.5 and Nano Banana 2 Lite
Attribute	GPT Image 1.5	Nano Banana 2 Lite
Provider	OpenAI	Google
Released	December 2025	June 2026
Access	API, Web app	API, Web app
Lifecycle	Marked as deprecated by OpenAI; removed from the API on December 1, 2026 Status source	No separate lifecycle notice
Weights	Proprietary	Proprietary
Parameters	Not published	Not published
Maximum output	1,536 × 1,024 pixels	1K
Arena configuration	High	Gemini 3.1 Flash Lite Image
Text-to-image price	$133 per 1,000 images	$33.6 per 1,000 images
Editing price	$133 per 1,000 images	$33.6 per 1,000 images
Technical source	Model sourceVerified 2026-08-15	Model sourceVerified 2026-08-15

GPT Image 1.5Nano Banana 2 Lite

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

GPT Image 1.5$133

Nano Banana 2 Lite$33.6

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

GPT Image 1.5$133

Nano Banana 2 Lite$33.6

Key to the marks:better valuebetter, but not conclusivetie

Prompt adherence and specialist tests

Shared capability benchmarks

Both checkpoints completed the same four Gradually sample tasks. For each task, 30 archived first outputs are 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.

GPT Image 1.5Nano Banana 2 Lite

Gradually sample test: Typography and layoutMean of three blind ranks across all 30 first outputs, n = 1 each

GPT Image 1.529.9 / 100

Nano Banana 2 Lite78.2 / 100

Gradually sample test: Product photographyMean of three blind ranks across all 30 first outputs, n = 1 each

GPT Image 1.543.7 / 100

Nano Banana 2 Lite65.5 / 100

Gradually sample test: Character and detailMean of three blind ranks across all 30 first outputs, n = 1 each

GPT Image 1.577 / 100

Nano Banana 2 Lite11.5 / 100

Gradually sample test: InfographicMean of three blind ranks across all 30 first outputs, n = 1 each

GPT Image 1.542.5 / 100

Nano Banana 2 Lite57.5 / 100

Key to the marks:better valuebetter, but not conclusivetie

Capability benchmark scores for GPT Image 1.5 and Nano Banana 2 Lite
Benchmark	GPT Image 1.5	Nano Banana 2 Lite
Gradually sample test: Typography and layout	29.9 / 100 Mean rank: 21.33 (23 / 22 / 19) Five rubric scores Headline: 1.67 / 2 Subline: 1.67 / 2 Text control: 1.67 / 2 Visual brief: 1.33 / 2 Layout: 1 / 2	Higher blind-rank score78.2 / 100 Mean rank: 7.33 (5 / 6 / 11) Five rubric scores Headline: 1.67 / 2 Subline: 1.67 / 2 Text control: 1.67 / 2 Visual brief: 1.67 / 2 Layout: 1.33 / 2
Gradually sample test: Product photography	43.7 / 100 Mean rank: 17.33 (22 / 8 / 22) Five rubric scores Subject: 1.67 / 2 Time: 1 / 2 Watch details: 1.67 / 2 Photography: 1.67 / 2 Exclusions: 1.67 / 2	Higher blind-rank score65.5 / 100 Mean rank: 11 (8 / 17 / 8) Five rubric scores Subject: 1.67 / 2 Time: 1.67 / 2 Watch details: 1.67 / 2 Photography: 1.67 / 2 Exclusions: 1.67 / 2
Gradually sample test: Character and detail	Higher blind-rank score77 / 100 Mean rank: 7.67 (6 / 5 / 12) Five rubric scores Scene: 1 / 2 Wardrobe: 1 / 2 Anatomy: 1 / 2 Props: 1 / 2 Environment: 1 / 2	11.5 / 100 Mean rank: 26.67 (30 / 30 / 20) Five rubric scores Scene: 1 / 2 Wardrobe: 1 / 2 Anatomy: 1 / 2 Props: 1 / 2 Environment: 1 / 2
Gradually sample test: Infographic	42.5 / 100 Mean rank: 17.67 (20 / 14 / 19) Five rubric scores Title: 1.67 / 2 Sequence: 1.67 / 2 Labels: 1 / 2 Diagram: 1.67 / 2 Clarity: 1 / 2	Higher blind-rank score57.5 / 100 Mean rank: 13.33 (15 / 13 / 12) Five rubric scores Title: 1.67 / 2 Sequence: 1.33 / 2 Labels: 1 / 2 Diagram: 1.33 / 2 Clarity: 1.33 / 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

GPT Image 1.5Nano Banana 2 Lite

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

GPT Image 1.51,102 Elo

Nano Banana 2 Lite1,092 Elo

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

GPT Image 1.51,103 Elo

Nano Banana 2 Lite1,042 Elo

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

GPT Image 1.51,214.044

Nano Banana 2 Lite1,226.293

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

GPT Image 1.51,224.786

Nano Banana 2 Lite1,255.576

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

GPT Image 1.51,245.019

Nano Banana 2 Lite1,257.93

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

GPT Image 1.51,240.235

Nano Banana 2 Lite1,250.509

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

GPT Image 1.51,239.16

Nano Banana 2 Lite1,250.402

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

GPT Image 1.51,249.33

Nano Banana 2 Lite1,260.141

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

GPT Image 1.51,261.708

Nano Banana 2 Lite1,247.68

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

GPT Image 1.51,253.437

Nano Banana 2 Lite1,275.491

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

GPT Image 1.51,342.523

Nano Banana 2 Lite1,289.38

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

GPT Image 1.51,370.19

Nano Banana 2 Lite1,314.296

Key to the marks:better valuebetter, but not conclusivetie

Arena benchmark scores for GPT Image 1.5 and Nano Banana 2 Lite
Benchmark	GPT Image 1.5	Nano Banana 2 Lite	Source
Text to Image Arena	No clear lead1,102 Elo Rank 9, 95% confidence interval: ±9, 14,748 ratings	1,092 Elo Rank 13, 95% confidence interval: ±8, 15,812 ratings	Artificial AnalysisRetrieved 2026-09-22
Image Editing Arena	Higher score1,103 Elo Rank 12, 95% confidence interval: ±9, 12,789 ratings	1,042 Elo Rank 23, 95% confidence interval: ±9, 5,732 ratings	Artificial AnalysisRetrieved 2026-09-22
LMArena Text to Image: 3D modeling	1,214.044 Rank 15, 95% confidence interval: ±6.6, 15,526 ratings	No clear lead1,226.293 Rank 13, 95% confidence interval: ±14.58, 1,568 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Art	1,224.786 Rank 14, 95% confidence interval: ±5.9, 21,424 ratings	Higher score1,255.576 Rank 12, 95% confidence interval: ±12.19, 2,303 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Cartoon	1,245.019 Rank 14, 95% confidence interval: ±4.72, 59,294 ratings	No clear lead1,257.93 Rank 13, 95% confidence interval: ±8.68, 6,253 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Commercial design	1,240.235 Rank 14, 95% confidence interval: ±4.6, 58,887 ratings	No clear lead1,250.509 Rank 12, 95% confidence interval: ±8.73, 5,899 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Overall	1,239.16 Rank 15, 95% confidence interval: ±3.24, 151,702 ratings	Higher score1,250.402 Rank 13, 95% confidence interval: ±6.19, 16,371 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Photorealism	1,249.33 Rank 15, 95% confidence interval: ±4.7, 60,842 ratings	No clear lead1,260.141 Rank 11, 95% confidence interval: ±8.56, 6,745 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Portraits	No clear lead1,261.708 Rank 12, 95% confidence interval: ±5.81, 29,731 ratings	1,247.68 Rank 15, 95% confidence interval: ±10.67, 3,352 ratings	LMArenaRetrieved 2026-09-19
LMArena Text to Image: Text rendering	1,253.437 Rank 16, 95% confidence interval: ±4.84, 54,527 ratings	Higher score1,275.491 Rank 12, 95% confidence interval: ±9.1, 5,412 ratings	LMArenaRetrieved 2026-09-19
LMArena Image Editing: Multi-image editing	Higher score1,342.523 Rank 11, 95% confidence interval: ±3.62, 192,446 ratings	1,289.38 Rank 14, 95% confidence interval: ±5.21, 26,348 ratings	LMArenaRetrieved 2026-09-19
LMArena Image Editing: Overall	Higher score1,370.19 Rank 15, 95% confidence interval: ±2.81, 566,510 ratings	1,314.296 Rank 19, 95% confidence interval: ±4.92, 59,280 ratings	LMArenaRetrieved 2026-09-19
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.

GPT Image 1.5. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID openai/gpt-image-1.5, generated Aug 14, 2026, 12:17 PM. Source
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

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

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

GPT Image 1.5, image SHA 256: 0dff52ccd39400ac66ac8870c9ea937512ff1474688e70118688f420c38c2296

GPT Image 1.5, request SHA 256: 5199631ac6ff07633dd2fb6ab61c918c26e1e02f37e6131828072233ac04527d

Nano Banana 2 Lite, image SHA 256: 6c7d17b2a84129cbeba7d52c8de703773e9296562d9d603688256d2717e65a0c

Nano Banana 2 Lite, request SHA 256: c8a36467199e361b900613c1db90cb99b0f552ddb7f7c7f2dd4aeb51ddb5ee1a

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

GPT Image 1.5, image SHA 256: 1c9ff59c32621c8b48b002dacb0ae66487262280c7c0a5b3d6456c81b248ebe9

GPT Image 1.5, request SHA 256: 7f1efc9531f1e6bed7d61a11c637add9fd892001aea2bb2781f8d89c79a2eb03

Nano Banana 2 Lite, image SHA 256: 11d8b5ddf15becefa6e4e32fca21729ff7d57f561a10e3a2b4b6f5c7a0aed6ef

Nano Banana 2 Lite, request SHA 256: 0e6096a9f082a718e45fcf3733bf3ffc92cb6c9db66b8c2c73d6c764ea0b15c8

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.

GPT Image 1.5. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID openai/gpt-image-1.5, generated Aug 14, 2026, 12:16 PM. Source
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

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

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

GPT Image 1.5, image SHA 256: 67cfa2f324447027ceb5f82e9446d40a1395b46ce425890a74606b4d97731cf6

GPT Image 1.5, request SHA 256: c850843a298631a4076c5d2686de8e9d7223534f2b8ca53505f437862718bef9

Nano Banana 2 Lite, image SHA 256: 30d9b09b92917eca84675448260a083ad368d9ea25376dabccac0f526f3a3ab7

Nano Banana 2 Lite, request SHA 256: cab5c6b0ea5c96eb96b640e581e0fe296421c7fffec3aad04f9394c978814ca1

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.

GPT Image 1.5. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID openai/gpt-image-1.5, generated Aug 14, 2026, 1:59 PM. Source
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

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

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

GPT Image 1.5, image SHA 256: 6a4cec86850fd371b65274198e2bf630b3cf36a096f9fb953d4bfe17c3222ebe

GPT Image 1.5, request SHA 256: 9c3a396aecfcaae3f8a25edbe5c8c44d0d33199d7ba29efda864d2b0221c3250

Nano Banana 2 Lite, image SHA 256: 9fab80fe1ad268b9ceceb4ef61ef1dd0e965dd3f28d377af7cf9cf201fdf47fa

Nano Banana 2 Lite, request SHA 256: 942506d572642220473dd80be80ff16950d6d11f31fab2b5c3145f3f2a9b2513

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 GPT Image 1.5 and Nano Banana 2 Lite with other important image models under the same evidence rules. Each page shows only exact shared measurements and samples.

View the complete image model comparison

GPT Image 1.5 vs. Nano Banana 2 Lite

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