Image Gen12B
FLUX.1 Dev
FLUX · FLUX.1 Dev Non-Commercial License
State-of-the-art image generation. Significantly better prompt adherence and image quality than SDXL. 12B parameter transformer model (not diffusion UNet). FP16 requires 24GB VRAM, but Q4 quantization brings it to 8GB GPUs. Non-commercial license.
- Parameters
- 12B
- Context
- 512 tokens
- Released
- 2024-08-01
- Engines
- ComfyUI, Fooocus
FLUX.1 Dev (12B) requires 13 GB VRAM at recommended quality (Q8_0). At efficient quality (Q4_K_M), it fits in 7.2 GB VRAM, making it compatible with the NVIDIA GeForce RTX 4060 8GB. For the best experience, Budget Home AI Server ($1,162) is recommended.
— OwnRig methodology, data updated 2026-03-01
VRAM Requirements
| Quality | Quantization | VRAM | File Size |
|---|---|---|---|
| full | FP16 | 23.8 GB | 23.8 GB |
| recommended | Q8_0 | 13 GB | 12 GB |
| efficient | Q4_K_M | 7.2 GB | 6 GB |
Compatible GPUs
Performance data for FLUX.1 Dev across different hardware.
| Device | Quantization | Speed | Rating | Fits in VRAM |
|---|---|---|---|---|
| NVIDIA GeForce RTX 4060 Ti 16GB | Q4_K_M | — | Acceptable | ✓ |
| NVIDIA GeForce RTX 4090 | FP16 | — | Excellent | ✓ |
| NVIDIA GeForce RTX 4060 8GB | Q4_K_M | — | Marginal | ✓ |
| NVIDIA GeForce RTX 4070 Ti 12GB | Q8_0 | — | Not Viable | ✗ (offload) |
| NVIDIA GeForce RTX 3080 10GB | Q4_K_M | — | Not Viable | ✗ (offload) |
| Apple M3 Pro (18GB Unified) | Q4_K_M | — | Not Viable | ✗ (offload) |
Recommended Builds
Complete PC builds that can run FLUX.1 Dev.
Mid-Range
Extreme
High-EndHigh-End
Mid-Range
Mid-RangeFull AI Builder
AI Builder Workstation
NVIDIA GeForce RTX 4090 · 64GB DDR5-5600 (2x32GB)
$2,90224 GB VRAM
Runs 10 models
Extreme
Extreme AI Workstation
2x NVIDIA GeForce RTX 3090 (Used) · 128GB DDR5-5600 (4x32GB)
$4,17148 GB VRAM
Runs 8 models
High-End
High-End AI Workstation
NVIDIA GeForce RTX 4090 · 64GB DDR5-6000 (2x32GB)
$3,67224 GB VRAM
Runs 8 models
High-EndHome AI Server
High-End Home AI Server
2x NVIDIA GeForce RTX 3090 24GB (Used) + NVLink Bridge · 128GB DDR5-5600 (4x32GB)
$3,84248 GB VRAM
Runs 12 models
Mid-RangePower AI Coding
Mid-Range AI Workstation
NVIDIA GeForce RTX 4060 Ti 16GB · 32GB DDR5-5600 (2x16GB)
$1,22816 GB VRAM
Runs 8 models
Frequently Asked Questions
- How much VRAM does FLUX.1 Dev need?
- FLUX.1 Dev requires 13 GB VRAM at recommended quality (Q8_0). At lower quality settings, it can fit in as little as 7.2 GB.
- Can I run FLUX.1 Dev on an RTX 4060 Ti?
- Yes. On the NVIDIA GeForce RTX 4060 Ti 16GB, FLUX.1 Dev runs at — (Q4_K_M, acceptable).
- What quantization should I use for FLUX.1 Dev?
- For the best quality, use Q8_0 (13 GB VRAM). If your GPU has limited VRAM, Q4_K_M (7.2 GB) is the most efficient option with acceptable quality.
Data confidence: estimated. Last updated: 2026-03-01. Source