Stability AIImage model matchup
Stable Diffusion 3.5 Largevs.Stable Diffusion 3.5 Flash
Which one is better?
Stable Diffusion 3.5 Flash has no test of our own and no arena rating yet. Neither has an API price.
Stable Diffusion 3.5 Large
Rank 84 of 108
Stable Diffusion 3.5 Flash
not tested yet
Stable Diffusion 3.5 Large
Rank 21 of 21
Stable Diffusion 3.5 Flash
not in the arena
Ranks among the 21 image models with an arena rating and the 108 with a GraduallyBench Image v2 run; prices compared with 28 models with an API price.
Test images from GraduallyBench Image v2
Same task, the first image of each.
No image from the four fixed tasks for Stable Diffusion 3.5 Flash yet.
Result for “Typography and layout”:only Stable Diffusion 3.5 Large tested
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 Diffusion 3.5 Flash
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.
DocumentationSubscription and API
Stable Diffusion 3.5 Large
- Subscription
- n/a No plan in Germany names exactly this model.
- Via API
- No API price known (access: API, local).
- Weights
- Open weights.
Stable Diffusion 3.5 Flash
- 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 10, 2026 · GraduallyBench Image v2 from Nov 7, 2026 · Subscription database from Sep 29, 2026 (45 days old)
All data side by side
The better value is bold. For ratings only when the gap is clear.
| Kennzahl | Stable Diffusion 3.5 Large | Stable Diffusion 3.5 Flash |
|---|---|---|
| Ratings | ||
| Arena ratingfrom votes by users, higher is better | 938 | n/a |
| Arena rank | Rank 21 of 21 | n/a |
| Arena votesmore votes, a safer rating | 23,396 | n/a |
| GraduallyBench Image v2our own benchmark, 0 to 100 | 26 | n/a |
| GraduallyBench Image v2 by task | ||
| Typography and layoutLegible text, hierarchy, and composition | 34 | n/a |
| Product photographyMaterials, reflections, and fine details | 9 | n/a |
| Character and detailAnatomy, clothing, and spatial consistency | 22 | n/a |
| InfographicNumbers, labels, and visual organization | 38 | n/a |
| API price | ||
| Per imagelower is better | n/a | n/a |
| 100 images | n/a | n/a |
| Profile | ||
| Released | Oct 22, 2024 | n/a |
| Weightsopen means: runs locally | open | unknown |
| Access | API, local | API |
| Parameters | 8.1 billion | not published |
| Largest output | 1 Megapixel | not consistently published |
| Plans in Germanynaming exactly this model | n/a | n/a |
API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.
Sources: Stable Diffusion 3.5 Large model source (verified Aug 15, 2026) · Stable Diffusion 3.5 Flash model 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 Stable Diffusion 3.5 Large and Stable Diffusion 3.5 Flash from the same arena and category. Older model versions are not used as substitutes.
More comparisons
Compare Stable Diffusion 3.5 Large and Stable Diffusion 3.5 Flash with the models people compare them with most often.