Hugging FaceMakes pictures from a written description or edits photos you give it, built for apps that can't keep you waiting.
- Parameters
- 4B
- Download
- 5.3 to 8.9 GB
- Commercial use
- Yes
Runs great on M4 · 16 GB
Outmake picks the Q4_0 size: a 5.3 GB download that uses 7.0 GB of memory.
Pictures made with FLUX.2 Klein 4B
See all
The first are the maker's own samples. The rest are this month's best-liked on Civitai, shown from there; each belongs to the person who made it. Open one for its maker.
About
Its family was designed to make and edit pictures in one model instead of two.
Limitations
Words drawn inside pictures may come out wrong or garbled.
It can miss parts of a prompt, and results depend on how you word it.
Good to know
Klein is German for small, a nod to its size and short wait.
Sources: black-forest-labs/FLUX.2-klein-4B model card, FLUX.2 [klein]: Towards Interactive Visual Intelligence | Black Forest Labs. Every line comes from one of these.
Good at
Licence
Apache 2.0. Commercial use: yes. The maker's page has the full terms.
FLUX.2 Klein 4B runs well from a Mac with an M1 and 16 GB of memory, at Q4_0. 56 of 59 Mac configurations run it well.
Compare with
The nearest models in size, judged for the same Mac.
- MOSS-Image SFTBest at posters, covers and anything with words in the picture.Tight fit · 9.2 GBGet
- Z-Image TurboPhoto-real pictures with textRuns well · 6.5 GBGet
- FLUX.3 Image KleinBest at detailed pictures and edits from many references.Runs well · 8.9 GBGet
- Qwen-Image 2.1 TurboBest at sharp, detailed illustration in eight steps.Tight fit · 9.9 GBGet
Sizes
Memory is what llama.cpp's own calculator reported for each size when the catalog was built, with the app's settings. Smaller, Balanced and Best are the three sizes the store names.
Run It Anywhere
FLUX.2 Klein 4B is an open model. For ComfyUI, with the ComfyUI-GGUF nodes installed, put one of the GGUF files in ComfyUI/models/unet.
- ComfyUIWindows, Linux, Mac
Files
On every Mac
| Mac | Size | Fit | Memory |
|---|---|---|---|
| M6 · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M6 · 24 GB | Q8_0 | Runs great | 11 GB |
| M6 · 32 GB | Q8_0 | Runs great | 11 GB |
| M5 · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M5 · 24 GB | Q8_0 | Runs great | 11 GB |
| M5 · 32 GB | Q8_0 | Runs great | 11 GB |
| M5 Pro · 24 GB | Q8_0 | Runs great | 11 GB |
| M5 Pro · 48 GB | Q8_0 | Runs great | 11 GB |
| M5 Pro · 64 GB | Q8_0 | Runs great | 11 GB |
| M5 Max · 36 GB | Q8_0 | Runs great | 11 GB |
| M5 Max · 48 GB | Q8_0 | Runs great | 11 GB |
| M5 Max · 64 GB | Q8_0 | Runs great | 11 GB |
| M5 Max · 128 GB | Q8_0 | Runs great | 11 GB |
| M5 Ultra · 96 GB | Q8_0 | Runs great | 11 GB |
| M5 Ultra · 256 GB | Q8_0 | Runs great | 11 GB |
| M5 Ultra · 512 GB | Q8_0 | Runs great | 11 GB |
| M4 · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M4 · 24 GB | Q8_0 | Runs great | 11 GB |
| M4 · 32 GB | Q8_0 | Runs great | 11 GB |
| M4 Pro · 24 GB | Q8_0 | Runs great | 11 GB |
| M4 Pro · 48 GB | Q8_0 | Runs great | 11 GB |
| M4 Pro · 64 GB | Q8_0 | Runs great | 11 GB |
| M4 Max · 36 GB | Q8_0 | Runs great | 11 GB |
| M4 Max · 48 GB | Q8_0 | Runs great | 11 GB |
| M4 Max · 64 GB | Q8_0 | Runs great | 11 GB |
| M4 Max · 96 GB | Q8_0 | Runs great | 11 GB |
| M4 Max · 128 GB | Q8_0 | Runs great | 11 GB |
| M3 · 8 GB | Q4_0 | Too big | 7.0 GB |
| M3 · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M3 · 24 GB | Q8_0 | Runs great | 11 GB |
| M3 Pro · 18 GB | Q4_0 | Runs great | 7.0 GB |
| M3 Pro · 36 GB | Q8_0 | Runs great | 11 GB |
| M3 Max · 36 GB | Q8_0 | Runs great | 11 GB |
| M3 Max · 48 GB | Q8_0 | Runs great | 11 GB |
| M3 Max · 64 GB | Q8_0 | Runs great | 11 GB |
| M3 Max · 96 GB | Q8_0 | Runs great | 11 GB |
| M3 Max · 128 GB | Q8_0 | Runs great | 11 GB |
| M3 Ultra · 96 GB | Q8_0 | Runs great | 11 GB |
| M3 Ultra · 256 GB | Q8_0 | Runs great | 11 GB |
| M3 Ultra · 512 GB | Q8_0 | Runs great | 11 GB |
| M2 · 8 GB | Q4_0 | Too big | 7.0 GB |
| M2 · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M2 · 24 GB | Q8_0 | Runs great | 11 GB |
| M2 Pro · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M2 Pro · 32 GB | Q8_0 | Runs great | 11 GB |
| M2 Max · 32 GB | Q8_0 | Runs great | 11 GB |
| M2 Max · 64 GB | Q8_0 | Runs great | 11 GB |
| M2 Max · 96 GB | Q8_0 | Runs great | 11 GB |
| M2 Ultra · 64 GB | Q8_0 | Runs great | 11 GB |
| M2 Ultra · 128 GB | Q8_0 | Runs great | 11 GB |
| M2 Ultra · 192 GB | Q8_0 | Runs great | 11 GB |
| M1 · 8 GB | Q4_0 | Too big | 7.0 GB |
| M1 · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M1 Pro · 16 GB | Q4_0 | Runs great | 7.0 GB |
| M1 Pro · 32 GB | Q8_0 | Runs great | 11 GB |
| M1 Max · 32 GB | Q8_0 | Runs great | 11 GB |
| M1 Max · 64 GB | Q8_0 | Runs great | 11 GB |
| M1 Ultra · 64 GB | Q8_0 | Runs great | 11 GB |
| M1 Ultra · 128 GB | Q8_0 | Runs great | 11 GB |
The size is the one the store offers that Mac. Constants fitted October 11, 2026; how, and how wrong.
Badge for the model card
Shows on FLUX.2 Klein 4B's Hugging Face card which Macs run it well, linked to this page. It updates every morning.
Sizes and files are read from leejet/FLUX.2-klein-4B-GGUF on Hugging Face and checked every morning. Catalog of November 4, 2026.