Image

FLUX.2

FLUX.2 is a three-model image generation and editing family: Pro balances speed, quality, and cost for production, Max targets the highest output quality, and Flex adds adjustable steps and guidance for fine control and typography.

Image GenerationImage EditingCommercial Use

Get API Key API Docs

Service Highlights

99.9% SLA
Official Discounts
Pay-as-you-go
Fast & Low Latency

Input

Model

Reference Image

Prompt

Resolution

Output Format

Size mode

Aspect Ratio

Seed (optional)

Prompt Upsampling

Safety Tolerance2

Output

Image link valid for 72 hours

Pricing Details

FLUX.2 billing adds the output MP price to the reference-image MP price.

Output image

Output billing uses the 1MP, 2MP, 3MP, and 4MP tiers.

Output image. Output billing uses the 1MP, 2MP, 3MP, and 4MP tiers.
Variant	Tier	Current Price	Official Price	Your Savings
`flux-2-pro`	1MP
	2MP
	3MP
	4MP
`flux-2-max`	1MP
	2MP
	3MP
	4MP
`flux-2-flex`	1MP
	2MP
	3MP
	4MP

Reference images

A single reference image uses its actual pixel tier, up to 4MP. With two or more images, each is billed at 1MP.

Reference images. A single reference image uses its actual pixel tier, up to 4MP. With two or more images, each is billed at 1MP.
Variant	Tier	Current Price	Official Price	Your Savings
`flux-2-pro`	1MP
	2MP
	3MP
	4MP
`flux-2-max`	1MP
	2MP
	3MP
	4MP
`flux-2-flex`	1MP
	2MP
	3MP
	4MP

* Final charges follow the actual generation parameters.

FLUX.2 API — Pro, Max & Flex

Generate or edit images with FLUX.2 Pro, Max, and Flex. Every variant accepts up to 8 public reference images, supports 1MP, 2MP, 3MP, and 4MP tiers, and can use exact dimensions up to 4 MP.

Get API Key

50K+

Active Users

99.9%

Uptime

Faster

70%

Cost Savings

FLUX.2 API Capabilities

Documented controls shared by Pro, Max, and Flex, with Flex-only tuning clearly identified

Three Production Variants

Choose Pro for balanced production workloads, Max for the highest-quality output, or Flex for detailed control and typography.

Up to 8 Reference Images

All three FLUX.2 variants accept up to 8 publicly accessible reference-image URLs for editing, composition, and visual consistency.

1MP, 2MP, 3MP & 4MP Tiers

Select the 1MP, 2MP, 3MP, or 4MP output tier. When omitted, the API uses the 2MP tier by default.

Ratios or Exact Dimensions

Use one of 9 supported aspect ratios, or set width and height directly. Exact output dimensions must be at least 64 px and no more than 4 MP; output plus all reference-image pixels must stay within 9 MP.

Reproducible Prompt Control

Set a seed for repeatable runs and disable prompt upsampling when you need the submitted wording to remain unchanged.

Flex-Only Fine Tuning

Only flux-2-flex exposes steps from 1–50 and guidance from 1.5–10 for controlling detail, speed, and prompt adherence.

Three Output Formats

Return PNG, JPEG, or WebP. Each asynchronous task produces exactly one image.

Unified Asynchronous API

Submit through POST /v1/images/generations and poll GET /v1/tasks/{id}. Failed tasks are automatically refunded in full.

FLUX.2 Use Cases

Design & Branding

Use Flex controls for posters, layouts, typography, and brand assets that benefit from adjustable rendering steps and guidance.

Advertising & Marketing

Use Pro for balanced production of campaign visuals, product scenes, and recurring marketing assets.

Digital Art & Illustration

Use Max when output quality is the priority for detailed artwork, key visuals, and polished illustrations.

UI/UX & Web Mockups

Create interface concepts and web mockups with Flex when layout and text rendering need additional control.

Image Editing & Compositing

Combine or edit subjects, scenes, and styles with as many as 8 public reference images per task.

Print & Editorial

Choose 1MP, 2MP, 3MP, or 4MP tiers, or request exact dimensions up to 4 MP for posters and editorial layouts.

Get Started with FLUX.2

Create a key, submit a generation task, and poll for its result.

Create an account and add funds

Create your APIMart account and add sufficient balance before submitting FLUX.2 tasks.

→

Generate an API key

Create an API key in the dashboard and send it as a Bearer token.

→

Submit and poll your first task

POST to /v1/images/generations, then poll /v1/tasks/{task_id} until the task completes. Use the returned cost as the final charge.

Get Flux 2 API Key

Flux 2 Customer Stories

“Flux 2 Pro delivers stunning photorealism—especially with multiple references. The Flux 2 lighting and textures feel incredibly lifelike for our product campaigns.”

Creative Director at DesignWorks

“Flux 2's typography rendering is exceptional. Finally, a model that handles text in mockups cleanly without artifacts or blur.”

UI/UX Designer

“The Flux 2 multi-reference feature helped me keep character styles consistent across my entire illustration series. Game-changer!”

Freelance Illustrator

“Editing existing images with Flux 2's natural language is so intuitive. Just describe what you want changed and Flux 2 works remarkably well.”

Marketing Manager

“Flux 2 Flex's quality vs speed control is super helpful when iterating designs. Flux 2 saved us hours in the creative review process.”

Brand Strategist

“The precise color control with hex codes in Flux 2 gives us exactly the brand colors we need. No more post-processing adjustments!”

Art Director at AdVision

FLUX.2 API FAQ

How many reference images can FLUX.2 use?

FLUX.2 Pro, Max, and Flex each accept up to 8 reference-image URLs. The URLs must be publicly accessible.

Which FLUX.2 variant should I choose?

Choose Pro for balanced speed, quality, and cost, Max when the highest output quality matters most, and Flex when you need adjustable steps, guidance, or stronger layout control.

Can every FLUX.2 model adjust steps and guidance?

No. These controls are exclusive to flux-2-flex: steps accepts 1–50 and guidance accepts 1.5–10. Pro and Max do not expose them.

What output sizes and formats are supported?

Use 1MP, 2MP, 3MP, or 4MP with any of 9 ratios, or provide width and height of at least 64 px with a total output limit of 4 MP. Formats are PNG, JPEG, and WebP.

How does the asynchronous API work?

POST /v1/images/generations returns a task ID. Poll GET /v1/tasks/{task_id} until the task is completed or failed; each task returns one image.

How is FLUX.2 priced, and what happens if a task fails?

The charge depends on the selected output tier or exact dimensions and the number of reference images. Use the completed task's cost field as the source of truth. Failed tasks are automatically refunded in full.

Related Models

Explore more models in the same category.

View All Models →