FLUX.1-dev vs stable-diffusion-2-1-base-custom

Specs, VRAM requirements and download trends — updated 20 September 2026.

black-forest-labs · A
Params
11.9 B
Context
30d
765 K
Sudanl · B
Params
Context
30d
42 K
creativeml-openrail-m licence · conditional

Specification comparison

Differences are highlighted; identical values are muted.

Specification FLUX.1-dev stable-diffusion-2-1-base-custom
Parameters 11.9 B
Architecture
Context length
Licence other creativeml-openrail-m
Commercial use Unknown Conditional
Languages 1
Downloads 30d 764,743 42,158
Downloads all time 33.6 M 1.8 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated Yes — accept licence No
First seen on the Hub 2024-07-31 2024-09-06

Download trend

Daily snapshots, last 55 days (28 Jul – 20 Sep)

835 K18 K
FLUX.1-dev stable-diffusion-2-1-base-custom

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

stable-diffusion-2-1-base-custom · fp16 3.9 GB / 24 GB
✅ Runs comfortably
FLUX.1-dev · fp16 66.0 GB / 24 GB
❌ Won’t fit

Adjacent comparisons