Black Forest Labs
Flux.1 Dev
State-of-the-art image generation. 12B parameters. Best open-source image quality available.
12B parametersrectified-flowflux-1-dev-nc8GB - 24GB VRAM
Check Your Hardware
See which quantizations of Flux.1 Dev your hardware can run.
Quantization Options
| Quantization | Bits | File Size | VRAM Needed | RAM Needed | Quality |
|---|---|---|---|---|---|
| FP16 | 16 | 24 GB | 24 GB | 32 GB | 100% |
| FP8 | 8 | 12 GB | 12 GB | 16 GB | 95% |
| NF4 | 4 | 8 GB | 8 GB | 12 GB | 85% |
Frequently Asked Questions
How much VRAM do I need to run Flux.1 Dev?
Flux.1 Dev requires 8GB VRAM minimum with FP16 quantization. For full precision, you need 24GB VRAM.
What is the best quantization for Flux.1 Dev?
Q4_K_M offers the best balance of quality and VRAM usage. Q8_0 is near-lossless if you have enough VRAM.