ModelsLab/Flux

flux

FLUX Text to ImageFree for Premium Users LLMs.txt

Generate high-resolution, diverse images up to 2 megapixels with a 12 billion parameter flow transformer using advanced flow matching, rotary embeddings, and parallel attention layers for precise prompt adherence and style control.

API Playground API Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v6/images/text2img

API Authentication

Authentication requires a valid API key included in the request. Generate and manage your API keys from your developer dashboard. Include the key in the key parameter for all API requests.

Integration Examples

Production-ready code samples for API integration

{
  "model_id": "flux",
  "prompt": "A minion from despicable me, red skin, Darth Maul like spikes on head, dressed in a dark Sith lord robe, Dark Jedi, (one eye:1.2), angry expression, scowling, (looking at viewer:1.1), holding a red lightsaber, pitch black background only illuminated by red lightsaber, perfect lightsaber, lightsaber pointed at viewer, Highest quality, masterpiece, 4k, concept art",
  "samples": "1",
  "negative_prompt": "(worst quality:2), (low quality:2), (normal quality:2), (jpeg artifacts), (blurry), (duplicate), (morbid), (mutilated), (out of frame), (extra limbs), (bad anatomy), (disfigured), (deformed), (cross-eye), (glitch), (oversaturated), (overexposed), (underexposed), (bad proportions), (bad hands), (bad feet), (cloned face), (long neck), (missing arms), (missing legs), (extra fingers), (fused fingers), (poorly drawn hands), (poorly drawn face), (mutation), (deformed eyes), watermark, text, logo, signature, grainy, tiling, censored, nsfw, ugly, blurry eyes, noisy image, bad lighting, unnatural skin, asymmetry",
  "width": "768",
  "height": "1024",
  "clip_skip": "1",
  "enhance_prompt": false,
  "guidance_scale": "7.5",
  "safety_checker": false,
  "watermark": "no",
  "base64": "no",
  "seed": "0",
  " num_inference_steps": "20",
  "safety_checker_type": null,
  "webhook": null,
  " track_id": null,
  "key": "YOUR_API_KEY"
}

SDKs

Official SDKs

Production-ready SDKs and client libraries for all major programming languages

JavaScript

Python

PHP

API Parameters

Technical specifications for API request parameters.

Field Name	Parameter	Technical Description
model_id	`model_id`	Model to use for generation
prompt	`prompt`	enter prompt to generate an image
samples	`samples`	Number of samples you want to generate. min 1, max 4
negative_prompt	`negative_prompt`	In negative prompt you enter things that you do not want to see in image
width	`width`	width of the image
height	`height`	height of the image
clip_skip	`clip_skip`	CLIP layers to skip
enhance_prompt	`enhance_prompt`	Enhance prompt add additional prompt at the end of your original prompt. recommended value (false/no)
guidance_scale	`guidance_scale`	How closely to follow the prompt (1-10)
safety_checker	`safety_checker`	A checker for NSFW images. If detected, such images will be replaced by a blank image. Default is "yes"
watermark	`watermark`	No description available
base64	`base64`	Get response as a base64 string. Default is no. Options: yes/no
seed	`seed`	Seed for reproducible results
num_inference_steps	`num_inference_steps`	The number of denoising steps. Values range from 1 to 20, and any value above 20 will be capped at 20.
safety_checker_type	`safety_checker_type`	How to modify the image if NSFW content is found. Available options: blur, sensitive_content_text, pixelate, black
webhook	`webhook`	URL to receive a POST API call once image generation is complete.
track_id	`track_id`	Unique ID used in webhook response to identify the request.