Flux.1 Schnell
#33 in Text-to-Imageblack-forest-labs · since 2024-08-01 · 2× · last seen Jun 30, 2026
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Momentum
FLUX.1 [schnell] is an open-source text-to-image model by Black Forest Labs featuring 12 billion parameters built on a rectified flow transformer architecture. It was trained using latent adversarial diffusion distillation and can generate high-quality images in just 1 to 4 inference steps. Released under the Apache 2.0 license, it is designed for local development and commercial use. Compared to its sibling models FLUX.1 [dev] and [pro], it prioritizes generation speed over maximum image quality.
Momentum trend
04.04.03.07.
Features
| Price Tier | Free / Open-Source. Weights freely available under Apache 2.0 license – usable for personal, research, and commercial purposes without license fees. |
| Memory Footprint (GB) | ~24 GB VRAM (BF16/FP16, native); ~16 GB with FP8/Q8 quantization; from ~10 GB with stronger quantization (e.g., NF4). The model additionally requires approx. 24 GB system RAM when loading. |