Image
GA
Open source
FLUX.2 [klein] 4B
Fast, commercially usable image generation on a consumer GPU
Release2026-06
Context32K
Max output—
Parameters4B
Local / VRAM12–16 GB
LicenseOpen source
Overview
FLUX.2 [klein] 4B is a model in the Image category from Black Forest Labs. It was released in 2026-06. The vendor is based in Germany. Best for: Fast, commercially usable image generation on a consumer GPU.
Hardware: ~13 GB; comfortable on a 16 GB GPU.
Strengths
- Apache-2.0
- 4B
- 16 GB GPU
- Fast
Limits
- Less detailed than 32B models
Specifications
| Vendor | Black Forest Labs |
|---|---|
| Category | Image |
| Release | 2026-06 |
| Status | GA |
| License | Open source |
| License name | Apache-2.0 |
| Commercial use | Allowed |
| Parameters | 4B |
| Architecture | rectified flow transformer |
| Context window | 32K |
| Input modalities | Text, Image |
| Output modalities | Image |
| Prompt types | Text, Image |
| Negative prompts | No |
| Max outputs | 1-4 |
| Resolution | 1MP-2MP |
| Local deployment | Yes |
| VRAM | 12–16 GB |
| System RAM | 16–32 GB |
| API access | Yes |
| Pricing | Free weights |
| Confidence | High |
| Vendor country | Germany |
| Vendor type | Open lab |
Pricing & hardware
Free weights
This model can be self-hosted or run locally. Approximate GPU memory: 12–16 GB. Approximate system RAM: 16–32 GB. API access is available.