---

name: flux-2-flex description: "Flux 2 | Flex. Flexible text-to-image generation with guidance scale control. Triggers: text to image, flux, flex, image generation" allowed-tools: Bash(curl *), WebFetch

Flux 2 | Flex

Generate images from text prompts with flexible control over guidance scale, inference steps, and prompt expansion. Balances quality and creative freedom.

Quick Start

Requires an each::labs API key. Get one at eachlabs.ai.

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "flux-2-flex",
    "version": "0.0.1",
    "input": {
      "prompt": "a serene zen garden with raked sand patterns and moss-covered stones",
      "image_size": "landscape_4_3",
      "guidance_scale": 3.5
    }
  }'

Parameters

Parameter	Type	Default	Description
enable_prompt_expansion	boolean	true	Whether to expand the prompt using the model's own knowledge.
enable_safety_checker	boolean	true	Whether to enable the safety checker.
guidance_scale	number	3.5	The guidance scale to use for the generation.
image_size	string	landscape_4_3	The size of the generated image. enum: square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9
num_inference_steps	integer	28	The number of inference steps to perform.
output_format	string	jpeg	The format of the generated image. enum: jpeg, png
prompt	string		The prompt to generate an image from.
safety_tolerance	string	2	The safety tolerance level. 1 is most strict, 5 is most permissive. enum: 1, 2, 3, 4, 5
seed	integer		The seed to use for the generation.

Examples

High guidance landscape:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "flux-2-flex",
    "version": "0.0.1",
    "input": {
      "prompt": "aerial view of terraced rice paddies at sunrise, golden light, mist",
      "image_size": "landscape_16_9",
      "guidance_scale": 5.0,
      "num_inference_steps": 35,
      "output_format": "png"
    }
  }'

Creative portrait with low guidance:

curl -X POST https://api.eachlabs.ai/v1/prediction \
  -H "Content-Type: application/json" \
  -H "X-API-Key: $EACHLABS_API_KEY" \
  -d '{
    "model": "flux-2-flex",
    "version": "0.0.1",
    "input": {
      "prompt": "abstract portrait, double exposure, forest and face merging",
      "image_size": "portrait_4_3",
      "guidance_scale": 2.0,
      "enable_prompt_expansion": false,
      "seed": 42
    }
  }'

Related Models

• Flux 2 | Flex | Edit - Image editing with Flex
• Flux 2 Pro - Pro-quality generation
• Flux 2 - Standard Flux 2 generation

Documentation

• each::labs Docs
• API Reference