FLUX.2 Max

flux-2-max

Get API keyAPI reference

FLUX.2 [max] is Black Forest Labs' new top-tier image model, elevating image quality, rapid understanding, and editing consistency to the highest level seen to date.

Context windowN/A

ProviderFlux

Released2026/01/04

Playground

Pricing

Billing item	Price
Image generation (first megapixel)	$0.0700 / megapixel
Image generation (additional megapixels)	$0.0300 / megapixel
Reference image (per megapixel)	$0.0300 / megapixel

How billing works:

• 1 megapixel = 1024×1024 pixels
• Resolution is always rounded up to the next megapixel
• Generated images and reference images are billed separately
• With multiple reference images, each one is billed as 1 megapixel
• Images larger than 4 megapixels are resized down to 4 megapixels

Example:A 1024×1024 image (1 megapixel) costs $0.0700; a 2048×2048 image (4 megapixels) costs $0.1600

Overview

Input

Text

Output

Image

API

API integration

Model ID

flux-2-max

Use this value as the model in image generation requests

API Key

View it in API key management

Bearer token (OAuth 2.0) used to authenticate image generation requests

Image API

https://api.seawhaleai.com/v2/images/generations

Image size

1:1

Square — avatars and icons

2:3

Portrait — phone wallpapers and posters

3:2

Landscape — scenery and banners

3:4

Portrait — Instagram vertical

4:5

Portrait — social media content

5:4

Landscape — presentation slides

9:16

Vertical — full-screen mobile and Stories

16:9

Widescreen — video thumbnails and desktop wallpapers

21:9

Ultrawide — cinematic framing

Multiple aspect ratios are supported for different use cases — social media, ads, wallpapers and more.

flux-2-max usage examples

The SeaWhale AI image generation endpoint is compatible with the OpenAI Images API and can be called with standard HTTP requests.

cURL

curl https://api.seawhaleai.com/v2/images/generations \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <API_KEY>" \
  -d '{
    "model": "flux-2-max",
    "prompt": "A cute kitten playing in the sunshine",
    "aspect_ratio": "1:1"
  }'

Python

import requests

url = "https://api.seawhaleai.com/v2/images/generations"
headers = {
    "Content-Type": "application/json",
    "Authorization": "Bearer <API_KEY>",
}
payload = {
    "model": "flux-2-max",
    "prompt": "A cute kitten playing in the sunshine",
    "aspect_ratio": "1:1",
}

response = requests.post(url, json=payload, headers=headers)
response.raise_for_status()

data = response.json()
print(data["data"][0]["url"])

Node.js

const response = await fetch('https://api.seawhaleai.com/v2/images/generations', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer <API_KEY>',
  },
  body: JSON.stringify({
    model: 'flux-2-max',
    prompt: 'A cute kitten playing in the sunshine',
    aspect_ratio: '1:1',
  }),
})

const data = await response.json()
console.log(data.data[0].url)