Runway Gen-4 Image Turbovs.Stable Diffusion 3.5 Flash
Which one is better?
We have not tested Runway Gen-4 Image Turbo or Stable Diffusion 3.5 Flash ourselves yet. Neither is in the arena. Neither has an API price.
Same prompt, two images
Same task, the first image of each.
No image from the four fixed tasks for Runway Gen-4 Image Turbo yet.This model does not yet have a complete GraduallyBench run.
No image from the four fixed tasks for Stable Diffusion 3.5 Flash yet.This model does not yet have a complete GraduallyBench run.
Result for “Typography and layout”:no comparison
What the rating looks at: Legible text, hierarchy, and composition.
“Ahead”: better in all three rating rounds. “Slightly ahead”: a higher value, but not in every round.
Missing image run for Runway Gen-4 Image Turbo
This model does not yet have a complete GraduallyBench run. Run the missing fixed tasks, archive the first output of each, and evaluate them blind.
DocumentationMissing image run for Stable Diffusion 3.5 Flash
This model does not yet have a complete GraduallyBench run. Run the missing fixed tasks, archive the first output of each, and evaluate them blind.
DocumentationThe numbers at a glance
Runway Gen-4 Image Turbo
not in the arena
Stable Diffusion 3.5 Flash
not in the arena
Runway Gen-4 Image Turbo
not tested yet
Stable Diffusion 3.5 Flash
not tested yet
Runway Gen-4 Image Turbo
no API price
Stable Diffusion 3.5 Flash
no API price
Ranks among the 22 image models with an arena rating and the 74 with a GraduallyBench run; prices compared with 28 models with an API price.
Runway Gen-4 Image Turbo
- Subscription
- No Runway subscription includes this model. Through other providers from ≈ €6.39 a month (ElevenLabs Starter, with limited credits). 7 plans in Germany.
- Via API
- No API price known. Access: API, Web app.
- Weights
- unknown.
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.
GraduallyBench from Nov 1, 2026 · Subscription database from Sep 29, 2026 (34 days old)
All data side by side
The better value is bold. For ratings only when the gap is clear.
| Kennzahl | Runway Gen-4 Image Turbo | Stable Diffusion 3.5 Flash |
|---|---|---|
| Ratings | ||
| Arena ratingfrom votes by users, higher is better | n/a | n/a |
| Arena rank | n/a | n/a |
| Arena votesmore votes, a safer rating | n/a | n/a |
| GraduallyBenchour own rating, 0 to 100 | n/a | n/a |
| GraduallyBench by task | ||
| Typography and layoutLegible text, hierarchy, and composition | n/a | n/a |
| Product photographyMaterials, reflections, and fine details | n/a | n/a |
| Character and detailAnatomy, clothing, and spatial consistency | n/a | n/a |
| InfographicNumbers, labels, and visual organization | n/a | n/a |
| API price | ||
| Per imagelower is better | n/a | n/a |
| 100 images | n/a | n/a |
| Profile | ||
| Released | n/a | n/a |
| Weightsopen means: runs locally | unknown | unknown |
| Access | API, Web app | API |
| Parameters | not published | not published |
| Largest output | not consistently published | not consistently published |
| Plans in Germanynaming exactly this model | 7 | n/a |
API prices for one image at 1,024 × 1,024 pixels according to Artificial Analysis.
Sources: Runway Gen-4 Image Turbo model source (verified Nov 1, 2026) · Stable Diffusion 3.5 Flash model source (verified Nov 1, 2026)
Arena ratings by category
From blind votes on LMArena. “Ahead” means the lead is clear.
No shared arena score in the stored snapshot
The stored benchmark database contains no measurement for Runway Gen-4 Image Turbo and Stable Diffusion 3.5 Flash from the same arena and category. Older model versions are not used as substitutes.
Compare another matchup
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