Image model vs image model
FLUX.2 Klein 9B vs LongCat Image
People picked FLUX.2 Klein 9B’s picture over LongCat Image’s about 60% of the time in blind votes, and it costs 22× less: $0.006 against $0.13 an image.
At a glance
Longer bar means the bigger number. Elo bars start at 800.
Blind votes · how often people would pick each picture
FLUX.2 Klein 9B LongCat Image
Price per image · 1024×1024, lower is better
Text to image · arena Elo, higher is better
Where they sit among all 56 image models
Up and to the left is better pictures for less money. Hover or tap a dot for its numbers, then click it to compare that model with FLUX.2 Klein 9B. Models the arena hasn’t rated yet sit in the grey lane at the bottom.
Which one to pick
Pick FLUX.2 Klein 9B if
- you want the better picture: in blind votes people chose its image over LongCat Image’s about 60% of the time
- price matters: 100 images cost $0.60, against $13.00 with LongCat Image
- you need to edit pictures you upload; LongCat Image only makes new ones here
The specs
| Spec | FLUX.2 Klein 9B | LongCat Image |
|---|---|---|
| Price per image | $0.006 ($0.022 per edit) | $0.13 |
| 100 images | $0.60 | $13.00 |
| Text-to-image Elo | 929 ±10 (#75 in the arena) | 856 ±19 (#92 in the arena) |
| Editing Elo | 1015 ±13 (#43 in the arena) | Not scored yet |
| Arena votes | 10,730 | 2,146 |
| Edits uploaded pictures | Yes | No |
| Largest size | — | — |
| Open weights | Yes | Yes |
| Zero data retention | — | — |
| Lab | Black Forest Labs | Meituan |
| Official name | FLUX.2 [klein] 9B | LongCat Image |
| Released | January 2026 | December 2025 |
Elo ± is the 95% margin. Prices are for one 1024×1024 image from fal.ai.
Questions
Which is better, FLUX.2 Klein 9B or LongCat Image?
People picked FLUX.2 Klein 9B’s picture over LongCat Image’s about 60% of the time in blind votes, and it costs 22× less: $0.006 against $0.13 an image.
Which is cheaper, FLUX.2 Klein 9B or LongCat Image?
FLUX.2 Klein 9B: $0.006 for a 1024×1024 image, against $0.13 for LongCat Image. 100 images cost $0.60 and $13.00.
Can FLUX.2 Klein 9B and LongCat Image edit images?
FLUX.2 Klein 9B can change a picture you upload. LongCat Image only makes new pictures from a prompt here.
How can I compare FLUX.2 Klein 9B and LongCat Image myself?
Open the comparison, type one prompt and both models draw it side by side, each with what it cost and how long it took. You sign up with Google before your first run, and new accounts start with free credit.
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Where the numbers come from
Quality scores are Elo ratings from the Artificial Analysis image arenas, where people vote between two pictures made from the same prompt without knowing which model made which. The vote split comes from the Elo gap. Prices are for one 1024×1024 image from fal.ai; models billed per token are estimated at the quality the arena scored. The sample pictures are our own runs. Updated October 25, 2026.