Image

FLUX.2 Flex image

FLUX.2 Flex — flexible speed/quality, with optional reference editing (up to 8). 1K/2K.

Category: Create · flux-2-flex

How to use & limits

• 32B model: text-to-image and multi-reference editing on the same endpoint.
• Optional references: up to 8 images at once, with strong character, product and style consistency.
• resolution: 1K or 2K.
• size accepts aspect ratios (1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3) or auto.
• Flex profile: adjustable balance between speed and quality.
• Clean typography and photoreal images.

Capabilities

What this model supports, straight from the schema — no pricing, no infrastructure detail.

Parameters

Fields accepted in params (or first-class, where applicable) for POST /generations.

Example request

curl -X POST https://caranguejo.art/api/v1/dev/generations \
  -H "Authorization: Bearer $CK" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux-2-flex",
  "prompt": "Modern typographic poster with the word "FLUX" featured, gradient background.",
  "params": {
    "size": "16:9",
    "resolution": "2K"
  }
}'

const res = await fetch("https://caranguejo.art/api/v1/dev/generations", {
  method: "POST",
  headers: {
    "Authorization": "Bearer " + process.env.CK,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "flux-2-flex",
    "prompt": "Modern typographic poster with the word "FLUX" featured, gradient background.",
    "params": {
      "size": "16:9",
      "resolution": "2K"
    }
  }),
});
const { data } = await res.json();

Example response

{
  "id": "9f0c1a7e-…",
  "object": "generation",
  "model": "flux-2-flex",
  "type": "image",
  "status": "completed",
  "output": {
    "assets": [
      {
        "url": "https://media.caranguejo.art/outputs/example.png",
        "type": "image"
      }
    ],
    "images": [
      {
        "url": "https://media.caranguejo.art/outputs/example.png"
      }
    ]
  }
}

Common errors for this job type: