GPT Image 1.5vs.Muse Image

Which one is better?

In our own test both are on par. In the arena, Muse Image leads. GPT Image 1.5 costs 13 times as much per image.

Test images

Same task, the first image of each. The task with the biggest difference is preselected.

GPT Image 1.5: Product photography, first image from the fixed test run — GPT Image 1.552 out of 100

Muse Image: Product photography, first image from the fixed test run — Muse Image81 out of 100

Result for “Product photography”:Muse Image ahead

Prompt given to both modelsCreate 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.

What the rating looks at: Materials, reflections, and fine details.

“Ahead”: better in all three rating rounds. “Slightly ahead”: a higher value, but not in every round.

Test protocol of the images

Each test attempt uses the same archived prompt and one request. The first output of that attempt counts. Repeats after technical test failures are disclosed for the affected images. Files are normalized to 1,024 × 1,024 pixels without cropping. Provider resolution, randomness, quality tier and prompt processing can still differ. The images are a practical visual test, not a reconstruction of the arena configuration.

Character and detail

GPT Image 1.5: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:17 PM. Source

Muse Image: fal, aspect ratio 1:1, n=1, seed=provider random, estimated cost $0.010000, source 1600x1600, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 8:48 AM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 985a75b38642a9f0e5e0c0e0c67f1b7f67780d42bd2168fa24e9a7a7a94b0da6

GPT Image 1.5 image SHA 256: 0dff52ccd39400ac66ac8870c9ea937512ff1474688e70118688f420c38c2296

Muse Image image SHA 256: 356427fe1ec15a444aae4eab2194344c7fe6b17ef205a8db16c1d64dbacb750e

Infographic

GPT Image 1.5: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:17 PM. Source

Muse Image: fal, aspect ratio 1:1, n=1, seed=provider random, estimated cost $0.010000, source 1600x1600, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 8:49 AM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: ed65cb4e6a51e2336f8b149ad4cbb16e020f07d527ad94362e719d2dcf91d94f

GPT Image 1.5 image SHA 256: 1c9ff59c32621c8b48b002dacb0ae66487262280c7c0a5b3d6456c81b248ebe9

Muse Image image SHA 256: c8b096001990f57cb5225f6387485b391a4a5e3c3031e7b0524a4c19e1e01bc8

Product photography

GPT Image 1.5: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 12:16 PM. Source

Muse Image: fal, aspect ratio 1:1, n=1, seed=provider random, estimated cost $0.010000, source 1600x1600, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 8:48 AM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: c67fd71e91304458a2feef5c91efa8677260fab0c0099a29a2c52cb579f5b2f3

GPT Image 1.5 image SHA 256: 67cfa2f324447027ceb5f82e9446d40a1395b46ce425890a74606b4d97731cf6

Muse Image image SHA 256: 0cb5d4c3dbe33c840ba87f0e8af255deec9e7e02eb6c7f172310af433e78fdb6

Typography and layout

GPT Image 1.5: together, 1024x1024, n=1, seed=provider random, provider default steps, generated Aug 14, 2026, 1:59 PM. Source

Muse Image: fal, aspect ratio 1:1, n=1, seed=provider random, estimated cost $0.010000, source 1600x1600, stored 1024x1024 (Lanczos3 downscale), generated Nov 1, 2026, 8:48 AM. Source

Protocol gradually-image-comparison-v1. Prompt SHA 256: 2e012c3d14ee5dd02203a94f394ca80a5038cdebd6032b25a8b8a221f2255419

GPT Image 1.5 image SHA 256: 6a4cec86850fd371b65274198e2bf630b3cf36a096f9fb953d4bfe17c3222ebe

Muse Image image SHA 256: b8232890082d6bdd72dd7be99d98a573566a2c62f94597ecdda2bd9110e2e143

The numbers at a glance

Arena ratingfrom votes by users · higher is better

1,236

GPT Image 1.5

Rank 13 of 21

1,269

Muse Image

Rank 7 of 21

GraduallyBenchour own rating, 0 to 100 · higher is better

GPT Image 1.5

Rank 29 of 108

Muse Image

Rank 4 of 108

Price per imagedollars through the API · lower is better

$0.13

GPT Image 1.5

expensive

$0.01

Muse Image

cheap

Ranks among the 21 image models with an arena rating and the 108 with a GraduallyBench run; prices compared with 28 models with an API price.

GPT Image 1.5

Subscription: No OpenAI subscription includes this model. Through other providers from ≈ €6.34 a month (ElevenLabs Starter, with limited credits). 42 plans in Germany.
Via API: $0.13 per image, 100 images $13.30.

Muse Image

Subscription: Free to use at Meta (Meta AI Free). Through other providers from ≈ €9.51 a month (Krea Basic, with limited credits). 6 plans in Germany.
Via API: $0.01 per image, 100 images $1.

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

Arena rating (LMArena) from Oct 28, 2026 · GraduallyBench from Nov 3, 2026 · API prices from Nov 3, 2026 · Subscription database from Sep 29, 2026 (38 days old)

All data side by side

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

Kennzahl	GPT Image 1.5	Muse Image
Ratings
Arena ratingfrom votes by users, higher is better	1,236	1,269
Arena rank	Rank 13 of 21	Rank 7 of 21
Arena votesmore votes, a safer rating	174,012	53,444
GraduallyBenchour own rating, 0 to 100	68	78
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition	60	86
Product photographyMaterials, reflections, and fine details	52	81
Character and detailAnatomy, clothing, and spatial consistency	89	61
InfographicNumbers, labels, and visual organization	72	86
API price
Per imagelower is better	$0.13	$0.01
100 images	$13.30	$1
Profile
Released	December 2025	Jul 7, 2026
Weightsopen means: runs locally	proprietary	proprietary
Lifecycle	Marked as deprecated by OpenAI; removed from the API on December 1, 2026	no notice
Access	API, Web app	API, Web app
Parameters	not published	not published
Largest output	1,536 × 1,024 pixels	not consistently published
Plans in Germanynaming exactly this model	42	6

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

Sources: GPT Image 1.5 model source, status source (verified Aug 15, 2026) · Muse Image model source (verified Sep 26, 2026)

Arena ratings by category

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

Arena rating per categoryfrom votes by users · higher is betterGPT Image 1.5Muse Image

Text to Image Arena1,1231,127level

Image Editing Arena1,1191,129level

Text to Image: 3D modeling1,2181,239ahead

Text to Image: Agentic image generation1,2371,236level

Text to Image: Art1,2251,258ahead

Text to Image: Cartoon1,2441,276ahead

Text to Image: Commercial design1,2381,259ahead

Text to Image: Overall1,2361,269ahead

Text to Image: Photorealism1,2471,281ahead

Text to Image: Portraits1,2591,294ahead

Text to Image: Text rendering1,2511,293ahead

Image Editing: Agentic image generation1,3581,393ahead

Image Editing: Multi-image editing1,3421,399ahead

Image Editing: Agentic multi-image editing1,3591,415ahead

Image Editing: Overall1,3681,400ahead

Artificial Analysis from Nov 3, 2026 · LMArena from Oct 28, 2026

All individual values with sources

Rating	GPT Image 1.5	Muse Image	Source
Text to Image Arena	1,123	1,127	Artificial AnalysisRetrieved Nov 3, 2026
Image Editing Arena	1,119	1,129	Artificial AnalysisRetrieved Nov 3, 2026
Text to Image: 3D modeling	1,218	1,239	LMArenaRetrieved Oct 28, 2026
Text to Image: Agentic image generation	1,237	1,236	LMArenaRetrieved Oct 28, 2026
Text to Image: Art	1,225	1,258	LMArenaRetrieved Oct 28, 2026
Text to Image: Cartoon	1,244	1,276	LMArenaRetrieved Oct 28, 2026
Text to Image: Commercial design	1,238	1,259	LMArenaRetrieved Oct 28, 2026
Text to Image: Overall	1,236	1,269	LMArenaRetrieved Oct 28, 2026
Text to Image: Photorealism	1,247	1,281	LMArenaRetrieved Oct 28, 2026
Text to Image: Portraits	1,259	1,294	LMArenaRetrieved Oct 28, 2026
Text to Image: Text rendering	1,251	1,293	LMArenaRetrieved Oct 28, 2026
Image Editing: Agentic image generation	1,358	1,393	LMArenaRetrieved Oct 28, 2026
Image Editing: Multi-image editing	1,342	1,399	LMArenaRetrieved Oct 28, 2026
Image Editing: Agentic multi-image editing	1,359	1,415	LMArenaRetrieved Oct 28, 2026
Image Editing: Overall	1,368	1,400	LMArenaRetrieved Oct 28, 2026

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GPT Image 1.5vs.Muse Image

Test images

The numbers at a glance

GPT Image 1.5

Muse Image

All data side by side

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