Flux Image Generation
API that can handle
your scale

Flux is a state-of-the-art image model by Black Forest Labs.
At fal you will find the fastest and most reliable Flux APIs for high-fidelity, accurate image generation.

Why choose fal as your Flux API Provider?#

  1. Fast

    fal provides the fastest and most reliable Flux APIs for high-fidelity, accurate image generation.

  2. Cheap

    Being fast and reliable doesn't mean expensive. fal provides the affordable API for you to use with no hidden costs.

  3. Reliable

    fal ensures your images will be generated, no matter the load.

  4. Scalable

    fal provides scalable APIs that allow you to generate thousands of images per second.

  5. Easy to use

    fal provides easy-to-use APIs that allow you to generate images with just a few lines of code, with first-class support for Python, JavaScript, Swift and more.

Fast. Cheap. Reliable.
Choose 3.

Flux models#

Flux is offered in a variety of different endpoints, each with its own unique capabilities and use cases.

Train Flux LoRATrain styles, people and other subjects at blazing speeds.
training
lora
personalization
FLUX1.1 [pro] ultraFLUX1.1 [pro] ultra is the newest version of FLUX1.1 [pro], maintaining professional-grade image quality while delivering up to 2K resolution with improved photo realism.
text-to-image
high-res
realism
Juggernaut Flux LoraJuggernaut Base Flux LoRA Inpainting by RunDiffusion is a drop-in replacement for Flux [Dev] inpainting that delivers sharper details, richer colors, and enhanced realism to all your LoRAs and LyCORIS with full compatibility.
image-to-image
Turbo Flux TrainerA blazing fast FLUX dev LoRA trainer for subjects and styles.
training
FLUX.1 [dev]FLUX.1 [dev] is a 12 billion parameter flow transformer that generates high-quality images from text. It is suitable for personal and commercial use.
text-to-image
FLUX.1 [dev] with Controlnets and LorasA versatile endpoint for the FLUX.1 [dev] model that supports multiple AI extensions including LoRA, ControlNet conditioning, and IP-Adapter integration, enabling comprehensive control over image generation through various guidance methods.
text-to-image
lora
controlnet
ip-adapter
FLUX.1 [dev] with LoRAsSuper fast endpoint for the FLUX.1 [dev] model with LoRA support, enabling rapid and high-quality image generation using pre-trained LoRA adaptations for personalization, specific styles, brand identities, and product-specific outputs.
text-to-image
lora
personalization
Juggernaut Flux Base LoRAJuggernaut Base Flux LoRA by RunDiffusion is a drop-in replacement for Flux [Dev] that delivers sharper details, richer colors, and enhanced realism to all your LoRAs and LyCORIS with full compatibility.
text-to-image
image generation
Juggernaut Flux LightningJuggernaut Lightning Flux by RunDiffusion provides blazing-fast, high-quality images rendered at five times the speed of Flux. Perfect for mood boards and mass ideation, this model excels in both realism and prompt adherence.
text-to-image
image generation
Juggernaut Flux ProJuggernaut Pro Flux by RunDiffusion is the flagship Juggernaut model rivaling some of the most advanced image models available, often surpassing them in realism. It combines Juggernaut Base with RunDiffusion Photo and features enhancements like reduced background blurriness.
image-to-image
image generation
Rundiffusion Photo FluxRunDiffusion Photo Flux provides insane realism. With this enhancer, textures and skin details burst to life, turning your favorite prompts into vivid, lifelike creations. Recommended to keep it at 0.65 to 0.80 weight. Supports resolutions up to 1536x1536.
text-to-image
image generation
lora
Juggernaut Flux ProJuggernaut Pro Flux by RunDiffusion is the flagship Juggernaut model rivaling some of the most advanced image models available, often surpassing them in realism. It combines Juggernaut Base with RunDiffusion Photo and features enhancements like reduced background blurriness.
text-to-image
image generation
Juggernaut Flux BaseJuggernaut Base Flux by RunDiffusion is a drop-in replacement for Flux [Dev] that delivers sharper details, richer colors, and enhanced realism, while instantly boosting LoRAs and LyCORIS with full compatibility.
image-to-image
image generation
Juggernaut Flux BaseJuggernaut Base Flux by RunDiffusion is a drop-in replacement for Flux [Dev] that delivers sharper details, richer colors, and enhanced realism, while instantly boosting LoRAs and LyCORIS with full compatibility.
text-to-image
image generation
FLUX.1 [dev] Control LoRA CannyFLUX Control LoRA Canny is a high-performance endpoint that uses a control image to transfer structure to the generated image, using a Canny edge map.
text-to-image
lora
style transfer
FLUX.1 [dev] Control LoRA DepthFLUX Control LoRA Depth is a high-performance endpoint that uses a control image using a depth map to transfer structure to the generated image and another initial image to guide color.
image-to-image
lora
style transfer
FLUX.1 [dev] Control LoRA DepthFLUX Control LoRA Depth is a high-performance endpoint that uses a control image to transfer structure to the generated image, using a depth map.
text-to-image
lora
style transfer
FLUX.1 [dev] Control LoRA CannyFLUX Control LoRA Canny is a high-performance endpoint that uses a control image using a Canny edge map to transfer structure to the generated image and another initial image to guide color.
image-to-image
lora
style transfer
FLUX1.1 [pro]FLUX1.1 [pro] is an enhanced version of FLUX.1 [pro], improved image generation capabilities, delivering superior composition, detail, and artistic fidelity compared to its predecessor.
text-to-image
FLUX1.1 [pro] ultra Fine-tunedFLUX1.1 [pro] ultra fine-tuned is the newest version of FLUX1.1 [pro] with a fine-tuned LoRA, maintaining professional-grade image quality while delivering up to 2K resolution with improved photo realism.
text-to-image
high-res
realism
FLUX.1 [pro] Fill Fine-tunedFLUX.1 [pro] Fill Fine-tuned is a high-performance endpoint for the FLUX.1 [pro] model with a fine-tuned LoRA that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
editing
FLUX.1 [dev] Canny with LoRAsUtilize Flux.1 [dev] Controlnet to generate high-quality images with precise control over composition, style, and structure through advanced edge detection and guidance mechanisms.
image-to-image
controlnet
detection
lora
editing
composition
FLUX.1 [pro] CannyUtilize Flux.1 [pro] Controlnet to generate high-quality images with precise control over composition, style, and structure through advanced edge detection and guidance mechanisms.
image-to-image
controlnet
detection
editing
composition
Train Flux LoRAs For Pro ModelsFLUX LoRA for Pro endpoints.
training
lora
personalization
FLUX.1 [pro] Depth Fine-tunedGenerate high-quality images from depth maps using Flux.1 [pro] depth estimation model with a fine-tuned LoRA. The model produces accurate depth representations for scene understanding and 3D visualization.
image-to-image
depth
utility
composition
FLUX.1 [pro] DepthGenerate high-quality images from depth maps using Flux.1 [pro] depth estimation model. The model produces accurate depth representations for scene understanding and 3D visualization.
image-to-image
depth
utility
composition
FLUX.1 [pro] Canny Fine-tunedUtilize Flux.1 [pro] Controlnet with a fine-tuned LoRA to generate high-quality images with precise control over composition, style, and structure through advanced edge detection and guidance mechanisms.
image-to-image
controlnet
detection
editing
composition
FLUX.1 [dev] Fill with LoRAsFLUX.1 [dev] Fill is a high-performance endpoint for the FLUX.1 [pro] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
editing
lora
FLUX.1 [schnell] ReduxFLUX.1 [schnell] Redux is a high-performance endpoint for the FLUX.1 [schnell] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
style transfer
FLUX.1 [schnell]FLUX.1 [schnell] is a 12 billion parameter flow transformer that generates high-quality images from text in 1 to 4 steps, suitable for personal and commercial use.
text-to-image
FLUX.1 [dev] ReduxFLUX.1 [dev] Redux is a high-performance endpoint for the FLUX.1 [dev] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
style transfer
lora
FLUX1.1 [pro] ultra ReduxFLUX1.1 [pro] ultra Redux is a high-performance endpoint for the FLUX1.1 [pro] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
style transfer
high-res
FLUX.1 [dev] Depth with LoRAsGenerate high-quality images from depth maps using Flux.1 [dev] depth estimation model. The model produces accurate depth representations for scene understanding and 3D visualization.
image-to-image
depth
lora
utility
composition
FLUX.1 [pro] ReduxFLUX.1 [pro] Redux is a high-performance endpoint for the FLUX.1 [pro] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
style transfer
FLUX1.1 [pro] ReduxFLUX1.1 [pro] Redux is a high-performance endpoint for the FLUX1.1 [pro] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
style transfer
FLUX.1 [pro] FillFLUX.1 [pro] Fill is a high-performance endpoint for the FLUX.1 [pro] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
editing
Train Flux LoRAs For PortraitsFLUX LoRA training optimized for portrait generation, with bright highlights, excellent prompt following and highly detailed results.
training
lora
personalization
FLUX.1 [dev] Differential DiffusionFLUX.1 Differential Diffusion is a rapid endpoint that enables swift, granular control over image transformations through change maps, delivering fast and precise region-specific modifications while maintaining FLUX.1 [dev]'s high-quality output.
image-to-image
transformation
PuLID FluxAn endpoint for personalized image generation using Flux as per given description.
image-to-image
personalization
style transfer
FLUX.1 [pro]FLUX.1 [pro] new is an accelerated version of FLUX.1 [pro], maintaining professional-grade image quality while delivering significantly faster generation speeds.
text-to-image
FLUX.1 [dev] Inpainting with LoRAsSuper fast endpoint for the FLUX.1 [dev] inpainting model with LoRA support, enabling rapid and high-quality image inpaingting using pre-trained LoRA adaptations for personalization, specific styles, brand identities, and product-specific outputs.
text-to-image
lora
personalization
FLUX.1 [dev] with Controlnets and LorasA general purpose endpoint for the FLUX.1 [dev] model, implementing the RF-Inversion pipeline. This can be used to edit a reference image based on a prompt.
image-to-image
rf-inversion
editing
lora
FLUX.1 [dev] with Controlnets and LorasFLUX General Inpainting is a versatile endpoint that enables precise image editing and completion, supporting multiple AI extensions including LoRA, ControlNet, and IP-Adapter for enhanced control over inpainting results and sophisticated image modifications.
image-to-image
lora
controlnet
ip-adapter
FLUX.1 [dev] with Controlnets and LorasFLUX General Image-to-Image is a versatile endpoint that transforms existing images with support for LoRA, ControlNet, and IP-Adapter extensions, enabling precise control over style transfer, modifications, and artistic variations through multiple guidance methods.
image-to-image
lora
controlnet
ip-adapter
FLUX.1 [dev] with LoRAsFLUX LoRA Image-to-Image is a high-performance endpoint that transforms existing images using FLUX models, leveraging LoRA adaptations to enable rapid and precise image style transfer, modifications, and artistic variations.
image-to-image
lora
style transfer
FLUX.1 [dev] with Controlnets and LorasA specialized FLUX endpoint combining differential diffusion control with LoRA, ControlNet, and IP-Adapter support, enabling precise, region-specific image transformations through customizable change maps.
image-to-image
lora
controlnet
ip-adapter
FLUX.1 SubjectSuper fast endpoint for the FLUX.1 [schnell] model with subject input capabilities, enabling rapid and high-quality image generation for personalization, specific styles, brand identities, and product-specific outputs.
text-to-image
personalization
customization
FLUX.1 [dev]FLUX.1 Image-to-Image is a high-performance endpoint for the FLUX.1 [dev] model that enables rapid transformation of existing images, delivering high-quality style transfers and image modifications with the core FLUX capabilities.
image-to-image
style transfer

Articles about Flux#

Training FLUX Style LoRA on fal

Training FLUX Style LoRA on fal

FLUX has taken over the image generation space, but getting exactly the style you want can be difficult. This where style LoRAs can help. Training a style LoRA on fal is easy, but there are some tips and tricks for getting the best results.

Oct 14, 2024
Announcing FLUX1.1 [pro] by BFL and FLUX [dev] speed improvements

Announcing FLUX1.1 [pro] by BFL and FLUX [dev] speed improvements

The FLUX1.1 [pro] model, codenamed "blueberry," was introduced in the Artificial Analysis image arena (https://artificialanalysis.ai/text-to-image/arena) last week. It currently boasts the highest overall Elo score among all image models, while at the same time being one of the fastest.

Oct 3, 2024
Announcing Flux by Black Forest Labs: The Next Leap in Text-to-Image Models

Announcing Flux by Black Forest Labs: The Next Leap in Text-to-Image Models

Flux, the largest SOTA open source text-to-image model to date, developed by Black Forest Labs — the original team behind Stable Diffusion is now available on fal. Flux pushes the boundaries of creativity and performance with an impressive 12B parameters, delivering aesthetics reminiscent of Midjourney.

Aug 1, 2024

Flux prompt examples#

Examples are generated using the Flux models. You can customize them by clicking on the "Customize it" button.

Gal gadot looking at the camera

Gal gadot looking at the camera

loras
num_inference_steps: 28
guidance_scale: 3.5
seed: 1234
Customize it
A vibrant custom illustration featuring a vintage hot rod, cruising along a sunny street lined with palm trees. The retro cityscape in the background showcases colorful buildings, a neon sign, and a bustling crowd of people. The text 'Summer Vibes' is displayed in a retro, distressed style, with each letter in a different color, exuding a sense of nostalgia. The design is perfect for a t-shirt print, with an isolated white background.

A vibrant custom illustration featuring a vintage hot rod, cruising along a sunny street lined with palm trees. The retro cityscape in the background showcases colorful buildings, a neon sign, and a bustling crowd of people. The text 'Summer Vibes' is displayed in a retro, distressed style, with each letter in a different color, exuding a sense of nostalgia. The design is perfect for a t-shirt print, with an isolated white background.

num_inference_steps: 28
guidance_scale: 3.5
image_size: 1024x768
Customize it
generated withfal-ai/flux/dev
dwarf elf, sitting on a sofa

dwarf elf, sitting on a sofa

num_inference_steps: 4
guidance_scale: 3.5
Customize it
generated withfal-ai/flux-subject
Anime style portrait of a female samurai at a beautiful lake with cherry trees, mountain fuji background, spring, sunset.

Anime style portrait of a female samurai at a beautiful lake with cherry trees, mountain fuji background, spring, sunset.

num_inference_steps: 28
guidance_scale: 3.5
image_size: 768x1024
Customize it
generated withfal-ai/flux/dev
woman, inside garden

woman, inside garden

controlnets
num_inference_steps: 28
guidance_scale: 3.5
image_size: 1024x768
Customize it
generated withfal-ai/flux-general
cartoon tiger, anime style

cartoon tiger, anime style

num_inference_steps: 40
guidance_scale: 4.5
seed: 1234
image_size: 1024x768
Customize it
Microscopic photograph of mites caught in a drop of water, green colored sparks raining from above across a gradient background, brightly shining sparks, emitting green light, shallow depth of field volumetric lighting, cinematic, intricate detail, ultra-realistic

Microscopic photograph of mites caught in a drop of water, green colored sparks raining from above across a gradient background, brightly shining sparks, emitting green light, shallow depth of field volumetric lighting, cinematic, intricate detail, ultra-realistic

num_inference_steps: 28
guidance_scale: 3.5
image_size: 1024x1024
Customize it
generated withfal-ai/flux/dev
image of a cat in the style of TOK

image of a cat in the style of TOK

loras
num_inference_steps: 28
guidance_scale: 3.5
image_size: 512x512
Customize it
portrait | wide angle shot of eyes off to one side of frame, lucid dream-like woman, looking off in distance ::8 style | daydreampunk with glowing skin and eyes, styled in headdress, beautiful, she is dripping in neon lights, very colorful blue, green, purple, bioluminescent, glowing ::8 background | forest, vivid neon wonderland, particles, blue, green, purple ::7 parameters | rule of thirds, golden ratio, assymetric composition, hyper- maximalist, octane render, photorealism, cinematic realism, unreal engine.

portrait | wide angle shot of eyes off to one side of frame, lucid dream-like woman, looking off in distance ::8 style | daydreampunk with glowing skin and eyes, styled in headdress, beautiful, she is dripping in neon lights, very colorful blue, green, purple, bioluminescent, glowing ::8 background | forest, vivid neon wonderland, particles, blue, green, purple ::7 parameters | rule of thirds, golden ratio, assymetric composition, hyper- maximalist, octane render, photorealism, cinematic realism, unreal engine.

image_size: 768x1024
Customize it
generated withfal-ai/flux/dev
Beutiful girl, near the lake, looking away

Beutiful girl, near the lake, looking away

controlnets
num_inference_steps: 28
guidance_scale: 3.5
image_size: 1024x768
Customize it
generated withfal-ai/flux-general
A tiny house built inside a teacup, with a spiral staircase and smoking chimney

A tiny house built inside a teacup, with a spiral staircase and smoking chimney

num_inference_steps: 28
guidance_scale: 3.5
image_size: 1024x768
Customize it
beautiful girl

beautiful girl

controlnet_unions
num_inference_steps: 50
guidance_scale: 3.5
image_size: 1024x768
Customize it
generated withfal-ai/flux-general