FLUX.2 [klein] 4B
Jan 2026
FLUX.2 [klein] 4BCompare inon
FLUX.2 [klein] 4B measured on 5 of 9 Image Generation & Editing benchmarks5
BenchmarkByScoreRank
Multimodal4
Text rendering1
No benchmark matches
Rankingconfiguration unstated?
Full ranking →···
36P Image1,033.237FLUX.2 [klein] 4B1,03038Runway Gen 41,024.2Strong at
Alternatives?
ModelScoreCostPriceWhat changes
CheaperMuse Imageunstatedwins 80%-33%$0.01
BetterZ-Image TurbounstatedOpenwins 58%-67%$0.005Edits photos: not verified+1OpenQwen Image 2.1unstatedwins 75%+33%$0.02Memory (4-bit): 2.3 GB → 4.2 GBHCheaperHiDream O1 ImageunstatedOpenwins 62%-33%$0.01Memory (4-bit): not verified
CheaperGPT Image 1 Miniunstatedwins 61%-27%$0.011ModelScoreCostPriceWhat changes
Muse Imageunstatedwins 80%-33%$0.01HHiDream O1 ImageunstatedOpenwins 62%-33%$0.01Memory (4-bit): not verifiedGPT Image 1 Miniunstatedwins 61%-27%$0.011
Recraft V4.1 Flashunstatedwins 60%-53%$0.007Z-Image TurbounstatedOpenwins 58%-67%$0.005Edits photos: not verified+1ModelScoreCostPriceWhat changes
Z-Image TurbounstatedOpenwins 58%-67%$0.005Edits photos: not verified+1Recraft V4.1 Flashunstatedwins 60%-53%$0.007Muse Imageunstatedwins 80%-33%$0.01HHiDream O1 ImageunstatedOpenwins 62%-33%$0.01Memory (4-bit): not verifiedGPT Image 1 Miniunstatedwins 61%-27%$0.011ModelScoreCostPriceWhat changes
Qwen Image 2.1unstatedOpenwins 75%+33%$0.02Memory (4-bit): 2.3 GB → 4.2 GBFLUX.2 [klein] 9BunstatedOpenwins 56%+13%$0.017Memory (4-bit): 2.3 GB → 5.3 GB
GLM-ImageunstatedOpenwins 47%+233%$0.05Memory (4-bit): 2.3 GB → 4.1 GBFLUX.1 Kontext DevunstatedOpenwins 37%+67%$0.025Memory (4-bit): 2.3 GB → 7 GBModelScoreCostPriceWhat changes
FLUX.2 [dev]unstatedOpenwins 66%+60%$0.024Memory (4-bit): 2.3 GB → 19 GBFLUX.1 Kontext [max]maxwins 56%+433%$0.08FLUX.2 [klein] 9BunstatedOpenwins 56%+13%$0.017Memory (4-bit): 2.3 GB → 5.3 GBFLUX.1 Kontext [pro]unstatedwins 54%+167%$0.04FLUX.1 Kontext DevunstatedOpenwins 37%+67%$0.025Memory (4-bit): 2.3 GB → 7 GBFLUX 3 Imagen/a—$0.048FLUX.2 [dev] FlashOpenn/a—$0.005Memory (4-bit): not verifiedFLUX.2 [max]n/a—$0.07All Black Forest Labs models →Run it yourself
estimateFits on✓ 8 GB (phone, laptop) · full quality✓ 16 GB · full quality✓ 24 GB GPU · full quality✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
LicenceApache-2.0free for commercial use
Benchmarks
in Image Generation & EditingArena Image Editing · overall1,187.5#27
Arena Text-to-Image · overall1,030#37
FAQ
How much does FLUX.2 [klein] 4B cost?›
$0.015 per image.
Is FLUX.2 [klein] 4B free to use?›
There is no free API; it costs $0.015 per image. The weights are open, so you can run it yourself.
How good is FLUX.2 [klein] 4B, and what is it best at?›
#83 of 93 in Image Generation & Editing.
Is FLUX.2 [klein] 4B better than P Image?›
On Arena Text-to-Image · overall, FLUX.2 [klein] 4B scores 1,030 vs 1,033.2 — about the same. It is 200% more expensive.
When was FLUX.2 [klein] 4B released? Is there a newer version?›
Released 2026-01-15. It is the current version in its line.
Is FLUX.2 [klein] 4B open source?›
Yes, the weights are open (Apache-2.0 licence).
Can I run FLUX.2 [klein] 4B locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
What is FLUX.2 [klein] 4B?›
FLUX.2 [klein] 4B is an open-weights image generation & editing model from Black Forest Labs, released Jan 2026.
What are the best alternatives to FLUX.2 [klein] 4B?›
Muse Image (cheaper), Z-Image Turbo (better), Qwen Image 2.1 (open weights).