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FLUX.1

Black Forest LabsImage GenerationOpen Source

State-of-the-art open-source image generation model from the creators of Stable Diffusion. Excellent prompt following and quality.

Abilities

Image Generation

Use Cases

CreativeContent Writing

Available in Tools

Availability

How to Use

Download from Hugging Face, run via ComfyUI or diffusers. FLUX.1-schnell for fast generation, FLUX.1-dev for higher quality.

Pros

  • Excellent image quality — matches or exceeds Midjourney on many styles
  • Best text rendering of any image model — legible text in generated images
  • Apache 2.0 licensed schnell variant — fully open for commercial use
  • Very fast generation with schnell variant (4 steps)
  • Built by the original Stable Diffusion creators — strong research lineage

Cons

  • Dev model has non-commercial license — schnell (fast) is open but lower quality
  • Requires significant VRAM (~24GB for full model) — expensive hardware needed
  • Newer model — smaller ecosystem of LoRAs and custom models than Stable Diffusion
  • Less community tooling and workflows compared to the mature SD ecosystem

What to Use It For

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Perfect For

Text-in-image generation

Best text rendering of any image model — produces legible, well-placed text within generated images

Fast open-source image generation

Schnell variant generates high-quality images in just 4 steps — extremely fast for an open model

High-quality images for commercial use

Apache 2.0 license on schnell variant allows fully unrestricted commercial use

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Good For

Illustrations and product visuals

Excellent image quality matching or exceeding Midjourney on many styles with open-source flexibility

Creative projects

Strong prompt following with high aesthetic quality for diverse creative applications

warning

Not Recommended

Users needing vast LoRA ecosystem

LoRA ecosystem is still growing — far fewer custom models available than Stable Diffusion

Try instead: Stable Diffusion 3.5

Simple chat-based image creation

Requires local setup or API integration — no simple chat interface like DALL-E in ChatGPT

Try instead: DALL-E 3

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Do Not Use For

Running on low-VRAM GPUs (<16GB)

Full model requires ~24GB VRAM — not feasible on most consumer GPUs without significant quality loss

Try instead: Stable Diffusion 3.5

Video generation

Static image model only — has no video or temporal generation capabilities

Try instead: Sora

Technical Details

PricingFree (self-hosted) / ~$0.003/image via Replicate
Parameters12B
LicenseApache 2.0 (schnell) / Non-commercial (dev)

Links