FLUX.1 [dev]
Black Forest Labs · Image generation · 12B · Released 1 August 2024
Non-commercial only
Open weights
Apple Silicon
The higher-quality member of the FLUX.1 family, producing excellent photorealistic images with readable text and strong prompt adherence. The catch is licensing: it is released under a non-commercial licence, so commercial use needs a separate agreement with Black Forest Labs.
Strengths
- Excellent image quality and prompt adherence
- Renders readable text well
- A large and growing ecosystem of fine-tunes and LoRAs
Weaknesses
- Non-commercial licence, so you cannot ship commercial output without a licence
- Slower than [schnell], needing more steps per image
- A 12B model needs 16GB or more, or quantisation, for comfortable use
Hardware requirements
| Quantisation | Approx. VRAM | Notes |
|---|---|---|
| GGUF Q4 | ~8GB | Quantised with offloading, fits an 8GB to 12GB card |
| FP8 | ~12GB | A good balance on a 16GB card |
| FP16 | ~24GB | Full precision, including the text encoder |
Optimised builds available for Apple Silicon.
Licence
FLUX.1 [dev] Non-Commercial License — read the licence
Availability
Recommended for
- Personal and research image generation at high quality
- Users who want the deepest FLUX fine-tune ecosystem
- Evaluation before deciding whether to license commercially
Catalogue entry last verified 30 July 2026. Specifications change; verify anything you are about to spend money on.