Black Forest Labs · 4B · Dense
Fastest open FLUX.2 — sub-second text-to-image and multi-reference editing on consumer GPUs Check if your GPU or Mac can run FLUX.2 Klein 4B locally — 2.2 GB min, 3.7 GB recommended.
2026-0132K context
| Quant | Bits | VRAM | Quality | Status |
|---|---|---|---|---|
| Q2_K | 2 | 1.8 GB | low | — |
| Q3_K_M | 3 | 2.3 GB | moderate | — |
| Q4_K_M | 4 | 2.5 GB | good | — |
| Q5_K_M | 5 | 3.1 GB | good | — |
| Q6_K | 6 | 3.6 GB | excellent | — |
| Q8_0 | 8 | 4.6 GB | excellent | — |
| F16 | 16 | 8.7 GB | lossless | — |
Can I run FLUX.2 Klein 4B locally?
- Can I run FLUX.2 Klein 4B locally?
- FLUX.2 Klein 4B needs about 2.2 GB of memory at a minimum and 3.7 GB recommended. Open this page to grade it against your GPU or Mac, then run it with runai, Ollama or LM Studio.
- How much VRAM does FLUX.2 Klein 4B need?
- At Q4_K_M, FLUX.2 Klein 4B uses about 2.5 GB of VRAM. Higher quants need more memory; lower quants fit tighter cards with a quality tradeoff.