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DATASHEET // FLUX-1-DEV

FLUX.1 [dev]

12B parameter open-weight diffusion model.

OPEN SOURCE8–24 GB VRAMRuns locally
Actually FreeNo SignupOpen SourceWatermark-FreeHobbyist-OKAPIPlugin

Requires: ComfyUI, Stable Diffusion WebUI Forge

Visit FLUX.1 [dev]UPDATED 2026-05-09 · DIRECT LINK
huggingface.co/black-forest-labs/FLUX.1-dev
FLUX.1 [dev] — preview image

HARDWARE REQUIREMENTS //

Runs locally · High-end GPU (16–24 GB)

8–24 GB VRAM
Min VRAM
8 GB
Rec. VRAM
24 GB
Min RAM
32 GB
Rec. RAM
64 GB
Disk
30 GB
GPU class
High-end GPU
CUDA 12Apple Silicon ✓GPU RequiredQuant: FP16, FP8, NF4 +1

NF4 fits in 6 GB but loses fidelity. FP8 in 12 GB is the practical sweet spot.

[ EDITORIAL PICK ]

Why we recommend FLUX.1 [dev]

DERIVED FROM METADATA — NOT SPONSORED
  • Open source

    Source is public — you can audit it, fork it, and you'll never lose access to your workflows if FLUX.1 [dev] the company changes direction.

  • Runs on 8 GB

    Comfortable on a mid-range consumer card — no need to remortgage for an A100.

  • Apple Silicon

    Native Metal / MPS support — runs on M-series Macs without CUDA gymnastics.

  • Top-tier pick

    Power-user score 95/100 — consistently rated highly by people who use this every day, not just benchmark chasers.

[ EVIDENCE NOTE ]

Documentation-led datasheet

This page summarizes upstream documentation, release information, and editorially reviewed catalogue fields. It is not presented as a hands-on benchmark. Verify changing requirements at the official project; report stale data through our corrections channel.

VRAM guide →

AT-A-GLANCE SIGNALS //

DERIVED FROM THIS PAGE'S DATA
  • Install difficulty
    Plugin

    Drops into comfyui — assuming the host is already set up.

  • Hardware comfort
    Mainstream

    Needs 8 GB minimum — RTX 3060 12GB or 4070 territory.

  • Ecosystem
    Strong devkit

    Open-source AND ships an API — easy to integrate, possible to host yourself.

  • Verification
    Recent

    Catalogue entry last updated 68 days ago — re-verification due soon.

[ MORE IN THIS NICHE ]

Other heavy image generation tools we rate

Three picks across different tradeoffs — so you don't end up with three near-clones of FLUX.1 [dev].

LIGHTEST HARDWARE //

FaceFusion

The most active open face-swap toolkit.

OPEN SOURCE2–8 GB VRAM
BEST FREE OPTION //

ComfyUI

The nodal workflow engine for serious diffusion.

OPEN SOURCE6–16 GB VRAM
TOP QUALITY //

ComfyUI IPAdapter Plus

Reference-image conditioning for ComfyUI.

OPEN SOURCE8–12 GB VRAM

What is FLUX.1 [dev]?

Black Forest Labs' FLUX.1 [dev] is the current open-weight quality leader for text-to-image. Excellent prompt adherence, hands, and text rendering. Runs in ComfyUI / Forge with FP8 or NF4 quantization for consumer GPUs.

Pros & cons

✓ PROS

  • Best open-weight image quality
  • Great hands and text
  • Quantized variants fit consumer GPUs

– CONS

  • Non-commercial license on [dev]
  • Slow on <12 GB cards even quantized
  • No native ControlNet (community ones exist)

What's actually free?

Open weights under a non-commercial license. Run free on your own GPU.

✓ Actually FreeNo SignupOpen SourceWatermark-Free

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