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Qwen-Image-2.1vs.Stable Image Ultra

Which one is better?

We have not tested Stable Image Ultra ourselves yet. Stable Image Ultra has no arena rating yet. Neither has an API price.

Test images

Same task, the first image of each.

Qwen-Image-2.1: Typography and layout, first image from the fixed test run
Qwen-Image-2.170 out of 100

No image from the four fixed tasks for Stable Image Ultra yet.

Stable Image Ultranot tested yet

Result for “Typography and layout”:only Qwen-Image-2.1 tested

Prompt given to both modelsCreate 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.

What the rating looks at: Legible text, hierarchy, and composition.

“Ahead”: the 95 % ranges of both values do not overlap. “Slightly ahead”: a higher value, but the ranges overlap.

Missing image run for Stable Image Ultra

The password for our existing Stability AI account was unavailable. We could not test this model version without signing in. Last checked November 2, 2026. Resolve access to the existing account and check the available allowance for this model.

Documentation

The numbers at a glance

Arena ratingfrom votes by users · higher is better
1,227

Qwen-Image-2.1

Rank 14 of 21

n/a

Stable Image Ultra

not in the arena

GraduallyBenchour own rating, 0 to 100 · higher is better
74

Qwen-Image-2.1

Rank 22 of 108

n/a

Stable Image Ultra

not tested yet

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.

Qwen-Image-2.1

Subscription
No Alibaba subscription includes this model. Through other providers from $9 a month (Krea Basic, with limited credits). 5 plans in Germany.
Via API
No API price known (access: local, Web app).
Weights
Open weights, Qwen Research License: non-commercial use only; commercial use requires a separate license.

Stable Image Ultra

Subscription
n/a No plan in Germany names exactly this model.
Via API
No API price known (access: API).
Weights
Unknown.

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

Arena rating (LMArena) from Nov 7, 2026 · GraduallyBench from Nov 7, 2026 · Subscription database from Sep 29, 2026 (39 days old)

All data side by side

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

KennzahlQwen-Image-2.1Stable Image Ultra
Ratings
Arena ratingfrom votes by users, higher is better1,227n/a
Arena rankRank 14 of 21n/a
Arena votesmore votes, a safer rating19,390n/a
GraduallyBenchour own rating, 0 to 10074n/a
GraduallyBench by task
Typography and layoutLegible text, hierarchy, and composition70n/a
Product photographyMaterials, reflections, and fine details87n/a
Character and detailAnatomy, clothing, and spatial consistency68n/a
InfographicNumbers, labels, and visual organization70n/a
API price
Per imagelower is bettern/an/a
100 imagesn/an/a
Profile
ReleasedSep 20, 2026n/a
Weightsopen means: runs locallyopenQwen Research License: non-commercial use only; commercial use requires a separate licenseunknown
Lifecycleno noticeCurrent API generation service based on Stable Diffusion 3.5 Large, not an independent checkpoint
Accesslocal, Web appAPI
Parametersnot publishednot published
Largest output2Knot consistently published
Plans in Germanynaming exactly this model5n/a

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

Sources: Qwen-Image-2.1 model source, status source (verified Sep 22, 2026) · Stable Image Ultra model source, status source (verified Nov 1, 2026)

Arena ratings by category

From blind votes on Artificial Analysis and LMArena; the sources are named under the card. “Ahead” means the lead is clear.

No shared arena score in the stored snapshot

The stored benchmark database contains no measurement for Qwen-Image-2.1 and Stable Image Ultra from the same arena and category. Older model versions are not used as substitutes.

More comparisons

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