Z-Image-Turbo vs FLUX.1-dev
Specs, VRAM requirements and download trends — updated 20 September 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Z-Image-Turbo | FLUX.1-dev |
|---|---|---|
| Parameters | 6.2 B | 11.9 B |
| Architecture | — | — |
| Context length | — | — |
| Licence | apache-2.0 | other |
| Commercial use | Allowed | Unknown |
| Languages | 1 | 1 |
| Downloads 30d | 659,627 | 764,743 |
| Downloads all time | 8.8 M | 33.6 M |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | Yes — accept licence |
| First seen on the Hub | 2025-11-25 | 2024-07-31 |
Download trend
Daily snapshots, last 55 days (28 Jul – 20 Sep)
1.2 M475 K
Z-Image-Turbo
FLUX.1-dev
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
Z-Image-Turbo · fp16
37.5 GB / 24 GB
FLUX.1-dev · fp16
66.0 GB / 24 GB