FLUX.1-schnell
black-forest-labs/FLUX.1-schnell
FLUX.1-schnell, 4-step fast generation.
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Architecture
flux
GPU Requirements
VRAM / RAM / disk estimates by quantization and usage scenario
| Quantization | Minimum | Recommended | Production |
|---|---|---|---|
| FP1616bit | 47.6 GB RAM 71.3 · Disk 73.9 | 50.9 GB RAM 76.3 · Disk 99.9 | 55.5 GB RAM 83.2 · Disk 138.9 |
| FP88bit | 25.4 GB RAM 38.1 · Disk 56.4 | 27.7 GB RAM 41.6 · Disk 82.4 | 31.3 GB RAM 47.0 · Disk 121.4 |
| INT88bit | 25.4 GB RAM 38.1 · Disk 56.4 | 27.7 GB RAM 41.6 · Disk 82.4 | 31.3 GB RAM 47.0 · Disk 121.4 |
| AWQ4bit | 14.8 GB RAM 32.0 · Disk 48.0 | 16.6 GB RAM 32.0 · Disk 74.0 | 19.7 GB RAM 32.0 · Disk 113.0 |
| GPTQ4bit | 14.9 GB RAM 32.0 · Disk 48.2 | 16.8 GB RAM 32.0 · Disk 74.2 | 19.9 GB RAM 32.0 · Disk 113.2 |
| GGUF4bit | 15.2 GB RAM 32.0 · Disk 48.4 | 17.0 GB RAM 32.0 · Disk 74.4 | 20.2 GB RAM 32.0 · Disk 113.4 |
GPU Recommendations
1× RTX 5090
32 GB VRAM
≈ 78.4 img/min
Effective production throughput ≈ 54.9 images/min
score 0.6361
1× RTX 3090
24 GB VRAM
≈ 26.6 img/min
Effective production throughput ≈ 18.6 images/min
score 0.6802
8× H100 SXM
640 GB VRAM
≈ 200.7 img/min
Effective production throughput ≈ 140.5 images/min
score 0.2412
1× RTX 4090
24 GB VRAM
≈ 61.9 img/min
Effective production throughput ≈ 43.3 images/min
score 0.6796
💬 Community — real deployment experience
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GPUs that fit (single card)
RTX 3090
24 GB VRAM
$45.4
/mo · vast
RTX 4090
24 GB VRAM
$98.1
/mo · vast
RTX 4090D
24 GB VRAM
$117
/mo · vast
L4
24 GB VRAM
$148
/mo · vast
A10
24 GB VRAM
$176
/mo · vast