Head-to-head comparison

Nano Banana Pro vs. Stable Diffusion 3.5 Large

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.

shared result series

shared sample prompts

2026-08-16

latest arena retrieval

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 Pro and Stable Diffusion 3.5 Large
Attribute	Nano Banana Pro	Stable Diffusion 3.5 Large
Provider	Google	Stability AI
Released	November 2025	October 22, 2024
Access	API, Web app	API, local
Lifecycle	No separate lifecycle notice	No separate lifecycle notice
Weights	Proprietary	Open weights
Parameters	Not published	8.1 billion
Maximum output	4K	1 Megapixel
Arena configuration	Gemini 3 Pro Image	No separate configuration named
Text-to-image price	$134 per 1,000 images	No arena entry
Editing price	$134 per 1,000 images	No arena entry
Technical source	Model sourceVerified 2026-08-15	Model sourceVerified 2026-08-15

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.

8 shared result series

Nano Banana ProStable Diffusion 3.5 Large

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

Nano Banana Pro1,230.042 arena pointsHigher arena score

Stable Diffusion 3.5 Large963.912 arena points

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

Nano Banana Pro1,224.748 arena pointsHigher arena score

Stable Diffusion 3.5 Large997.688 arena points

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

Nano Banana Pro1,240.574 arena pointsHigher arena score

Stable Diffusion 3.5 Large945.603 arena points

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

Nano Banana Pro1,245.099 arena pointsHigher arena score

Stable Diffusion 3.5 Large937.14 arena points

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

Nano Banana Pro1,245.593 arena pointsHigher arena score

Stable Diffusion 3.5 Large938.302 arena points

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

Nano Banana Pro1,260.121 arena pointsHigher arena score

Stable Diffusion 3.5 Large928.086 arena points

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

Nano Banana Pro1,258.035 arena pointsHigher arena score

Stable Diffusion 3.5 Large941.134 arena points

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

Nano Banana Pro1,269.198 arena pointsHigher arena score

Stable Diffusion 3.5 Large921.402 arena points

Arena benchmark scores for Nano Banana Pro and Stable Diffusion 3.5 Large
Benchmark	Nano Banana Pro	Stable Diffusion 3.5 Large	Source
Arena Text to Image: 3D modeling	1,230.042 arena pointsHigher arena score Rank 7, 95% confidence interval: ±7.01, 13,757 ratings	963.912 arena points Rank 73, 95% confidence interval: ±15.9, 1,629 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Art	1,224.748 arena pointsHigher arena score Rank 10, 95% confidence interval: ±6.22, 19,671 ratings	997.688 arena points Rank 70, 95% confidence interval: ±9.46, 5,340 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Cartoon	1,240.574 arena pointsHigher arena score Rank 11, 95% confidence interval: ±4.92, 56,045 ratings	945.603 arena points Rank 73, 95% confidence interval: ±6.34, 12,274 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Commercial design	1,245.099 arena pointsHigher arena score Rank 9, 95% confidence interval: ±4.81, 50,186 ratings	937.14 arena points Rank 74, 95% confidence interval: ±11.06, 3,051 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Overall	1,245.593 arena pointsHigher arena score Rank 10, 95% confidence interval: ±3.37, 138,756 ratings	938.302 arena points Rank 74, 95% confidence interval: ±4.5, 23,396 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Photorealism	1,260.121 arena pointsHigher arena score Rank 7, 95% confidence interval: ±4.77, 59,290 ratings	928.086 arena points Rank 74, 95% confidence interval: ±7.07, 9,405 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Portraits	1,258.035 arena pointsHigher arena score Rank 11, 95% confidence interval: ±5.76, 31,463 ratings	941.134 arena points Rank 73, 95% confidence interval: ±8.89, 5,704 ratings	ArenaRetrieved 2026-08-16
Arena Text to Image: Text rendering	1,269.198 arena pointsHigher arena score Rank 9, 95% confidence interval: ±5.14, 46,529 ratings	921.402 arena points Rank 74, 95% confidence interval: ±10.85, 3,222 ratings	ArenaRetrieved 2026-08-16

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

Stable Diffusion 3.5 Large, Character and detail — Stable Diffusion 3.5 Large

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 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/gemini-3-pro-image, generated Aug 14, 2026, 12:20 PM. Source
Stable Diffusion 3.5 Large. Provider fal.ai, requested 1024x1024, n=1, seed=7087247023770270000, estimated cost $0.068157, model ID fal-ai/stable-diffusion-v35-large, generated Aug 14, 2026, 2:37 PM. Source

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

Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

Nano Banana Pro, image SHA 256: eed53dcc080d2710e6e890382f6273382a12e2c5b079b8813962bff0c92b5df7

Nano Banana Pro, request SHA 256: 12c91e972a7256b1386b22420c0c84e30b85ac6e07830eea944755e5bd9742fc

Stable Diffusion 3.5 Large, image SHA 256: e748006fe56e442ad347e3f994f18b86ee1739f20dcee063aa7a03ee710c5d54

Stable Diffusion 3.5 Large, request SHA 256: 5d005ee24926d68b7d2299b8ecbe4e14919f652761f6de2568a043f2a6258da0

Infographic

Numbers, labels, and visual organization

Stable Diffusion 3.5 Large, Infographic — Stable Diffusion 3.5 Large

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 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/gemini-3-pro-image, generated Aug 14, 2026, 12:20 PM. Source
Stable Diffusion 3.5 Large. Provider fal.ai, requested 1024x1024, n=1, seed=12166653711354006000, estimated cost $0.068157, model ID fal-ai/stable-diffusion-v35-large, generated Aug 14, 2026, 2:37 PM. Source

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

Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

Nano Banana Pro, image SHA 256: 4ff7d3965d18e197f00647c35d6aed5a86a376c92779ee9e748c598aebafa51d

Nano Banana Pro, request SHA 256: a69a5193f107aac4f7532f021fc4306c0907470f40f984d0b263728e292d8f1b

Stable Diffusion 3.5 Large, image SHA 256: 4eb0fd741ef42e6d3fee4b1280cdfb098a0a04009b139051963895892e349f1e

Stable Diffusion 3.5 Large, request SHA 256: 8b8014fc63f520d73ff57d3d8df5eae880097383167d44918b963f2830d09940

Product photography

Materials, reflections, and fine details

Stable Diffusion 3.5 Large, Product photography — Stable Diffusion 3.5 Large

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 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/gemini-3-pro-image, generated Aug 14, 2026, 12:19 PM. Source
Stable Diffusion 3.5 Large. Provider fal.ai, requested 1024x1024, n=1, seed=13346308312015933000, estimated cost $0.068157, model ID fal-ai/stable-diffusion-v35-large, generated Aug 14, 2026, 2:37 PM. Source

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

Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

Nano Banana Pro, image SHA 256: d50770f426cac7920c9ffdaf210db2f11cdc51a8cf0b7ef52e6cd26850b1de70

Nano Banana Pro, request SHA 256: 92d73f9638fa47ea30f0ceefdeb5eb2ca7d4a018b4b4835463bd0ea29d0495cf

Stable Diffusion 3.5 Large, image SHA 256: ea9a7401dee8859ec2cb96af9f7ca29a177ef2202f52f629d8ce9f5839bd4061

Stable Diffusion 3.5 Large, request SHA 256: 21e2c14d1b6315c30134e1390f531349608855d4ef1a87527e6d0ba57b2974ca

Typography and layout

Legible text, hierarchy, and composition

Stable Diffusion 3.5 Large, Typography and layout — Stable Diffusion 3.5 Large

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 Pro. Provider Together, 1024x1024, n=1, seed=provider random, provider default steps, model ID google/gemini-3-pro-image, generated Aug 14, 2026, 2:00 PM. Source
Stable Diffusion 3.5 Large. Provider fal.ai, requested 1024x1024, n=1, seed=16632333557910893000, estimated cost $0.068157, model ID fal-ai/stable-diffusion-v35-large, generated Aug 14, 2026, 2:37 PM. Source

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

Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

Nano Banana Pro, image SHA 256: fc173de00b0df04772321167cfeabb55418d3d016081e7ebfb589c69a629b712

Nano Banana Pro, request SHA 256: d686c572b086aa9f5d019886e8182c8f41c5d35bfb43bc6b6937feccba8a73eb

Stable Diffusion 3.5 Large, image SHA 256: e2994b1883a245b1c8c447957d121ea89d93aafff149029aa4e8507dbb769f9a

Stable Diffusion 3.5 Large, request SHA 256: 530872e813e988ba95025956a3743c6111120af963d90b8970a8bf3eced5547b

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 Pro and Stable Diffusion 3.5 Large with other important image models using the same benchmark and sample methodology.

View the complete image model comparison

Nano Banana Pro vs. Stable Diffusion 3.5 Large

Change image model selection

General specifications and task-specific pricing

Shared arena benchmarks

Sample images from documented runs

Character and detail

Infographic

Product photography

Typography and layout

An Elo score is not a verdict on creativity

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