FLUX.2 Klein 9Bvs.LongCat-Image
Which one is better?
We have not tested LongCat-Image ourselves yet. LongCat-Image has no arena rating yet. LongCat-Image has no API price.
Same prompt, two images
Same task, the first image of each.
No image from the four fixed tasks for LongCat-Image yet.This model does not yet have a complete GraduallyBench run.
Result for “Typography and layout”:only FLUX.2 Klein 9B tested
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 LongCat-Image
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
FLUX.2 Klein 9B
Rank 21 of 22
LongCat-Image
not in the arena
FLUX.2 Klein 9B
Rank 50 of 74
LongCat-Image
not tested yet
FLUX.2 Klein 9B
cheap
LongCat-Image
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.
FLUX.2 Klein 9B
- Subscription
- n/a No plan in Germany names exactly this model.
- Via API
- $0.015 per image, 100 images $1.50.
- License
- Open weights, Weights released under the FLUX Non-Commercial License.
LongCat-Image
- Subscription
- n/a No plan in Germany names exactly this model.
- Via API
- No API price known. Access: local.
- License
- Open weights.
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 1, 2026 · API prices from Oct 28, 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 | FLUX.2 Klein 9B | LongCat-Image |
|---|---|---|
| Ratings | ||
| Arena ratingfrom votes by users, higher is better | 1,070 | n/a |
| Arena rank | Rank 21 of 22 | n/a |
| Arena votesmore votes, a safer rating | 150,695 | n/a |
| GraduallyBenchour own rating, 0 to 100 | 45 | n/a |
| GraduallyBench by task | ||
| Typography and layoutLegible text, hierarchy, and composition | 22 | n/a |
| Product photographyMaterials, reflections, and fine details | 72 | n/a |
| Character and detailAnatomy, clothing, and spatial consistency | 59 | n/a |
| InfographicNumbers, labels, and visual organization | 26 | n/a |
| API price | ||
| Per imagelower is better | $0.015 | n/a |
| 100 images | $1.50 | n/a |
| Profile | ||
| Released | January 2026 | Dec 5, 2025 |
| Weightsopen means: runs locally | openWeights released under the FLUX Non-Commercial License | open |
| Access | API, local | local |
| Parameters | 9 billion | 6 billion |
| Largest output | 4 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: FLUX.2 Klein 9B model source, status source (verified Sep 24, 2026) · LongCat-Image 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 FLUX.2 Klein 9B and LongCat-Image from the same arena and category. Older model versions are not used as substitutes.
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