Image

FLUX.2 Pro

FLUX.2 Pro generates and edits images with a balance of speed, quality, and cost for production workflows.

Image GenerationImage EditingCommercial Use

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Service Highlights

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

Content Moderation

Safety Tolerance2

Output

Image link valid for 72 hours

FLUX.2 Pro API Pricing

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	GoldCurrent price	Platinum	Diamond	Official	Your savings
`flux-2-pro`	1MP	0.24Credits(~$0.024)	0.228Credits(~$0.0228)	0.216Credits(~$0.0216)	0.3Credits(~$0.03)	20%
	2MP	0.36Credits(~$0.036)	0.342Credits(~$0.0342)	0.324Credits(~$0.0324)	0.45Credits(~$0.045)	20%
	3MP	0.48Credits(~$0.048)	0.456Credits(~$0.0456)	0.432Credits(~$0.0432)	0.6Credits(~$0.06)	20%
	4MP	0.6Credits(~$0.06)	0.57Credits(~$0.057)	0.54Credits(~$0.054)	0.75Credits(~$0.075)	20%

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	GoldCurrent price	Platinum	Diamond	Official	Your savings
`flux-2-pro`	1MP	0.12Credits(~$0.012)	0.114Credits(~$0.0114)	0.108Credits(~$0.0108)	0.15Credits(~$0.015)	20%
	2MP	0.24Credits(~$0.024)	0.228Credits(~$0.0228)	0.216Credits(~$0.0216)	0.3Credits(~$0.03)	20%
	3MP	0.36Credits(~$0.036)	0.342Credits(~$0.0342)	0.324Credits(~$0.0324)	0.45Credits(~$0.045)	20%
	4MP	0.48Credits(~$0.048)	0.456Credits(~$0.0456)	0.432Credits(~$0.0432)	0.6Credits(~$0.06)	20%

* Final charges follow the actual generation parameters.

FLUX.2 Pro API

Generate or edit images with FLUX.2 Pro. Its API accepts up to 8 reference images as public URLs or Base64, supports 1MP, 2MP, 3MP, and 4MP tiers, and can use exact dimensions up to 4 MP.

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50K+

Active Users

99.9%

Uptime

Faster

20%

1MP Output · Saving

FLUX.2 Pro API Capabilities

Documented controls for image generation and editing with FLUX.2 Pro

Balanced Production Workflows

Choose Pro for balanced production workloads with a focus on speed, quality, and cost.

Up to 8 Reference Images

The FLUX.2 Pro API accepts up to 8 reference images as publicly accessible URLs or Base64 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. The auto option follows the reference-image ratio; pixel dimensions can also be passed as a width×height string in size.

Reproducible Prompt Control

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

Optional Content Checks

Use nsfw_check for optional prompt and input-image moderation, and safety_tolerance from 0–5 to set the content-safety tolerance.

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 Pro Use Cases

Use FLUX.2 Pro for production image workflows, from design and marketing to editing and illustration.

Design & Branding

Use Pro for posters, layouts, typography, and brand assets guided by text prompts and reference images.

Advertising & Marketing

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

Digital Art & Illustration

Use Pro for detailed artwork, key visuals, and polished illustrations.

UI/UX & Web Mockups

Create interface concepts and web mockups with Pro, using prompts and reference images to guide layout and text.

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 Pro

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 Pro tasks.

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Generate an API key

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

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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

See how professionals are transforming their work with Flux 2. These stories describe the FLUX.2 family, including Pro and Flex, and are not specific to this version.

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

Alex Chen

Creative Director at DesignWorks

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

Sarah Mitchell

UI/UX Designer

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

Marcus Weber

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.”

Emma Rodriguez

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.”

James Liu

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!”

Sophie Anderson

Art Director at AdVision

FLUX.2 Pro API FAQ

Answers based on the FLUX.2 Pro API behavior.

How many reference images can FLUX.2 Pro use?

The FLUX.2 Pro API accepts up to 8 reference images as publicly accessible URLs or Base64 for editing, composition, and visual consistency.

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 Pro priced, and what happens if a task fails?

The charge combines this model’s output MP tier or exact dimensions with the input MP tiers of reference images, using the live prices on this page. Use the completed task’s cost field as the source of truth. Failed tasks are automatically refunded in full.

Is there a discount on the FLUX.2 Pro API?

Yes. Prices shown on this page are Gold member prices, already 20% off. Platinum and Diamond members save even more, up to 28%, and you only pay for successful requests.

How do I get a FLUX.2 Pro API key?

Sign up for APIMart, open the API Keys page in your dashboard and create a new key. The same key calls the Black Forest Labs FLUX.2 Pro API and every other model on the platform, with pay-as-you-go billing and no subscription.

Is the Flux 2 API the same as the FLUX.2 API?

Yes. Flux 2 is a common way to write FLUX.2, Black Forest Labs' image family with Pro, Max and Flex variants. On APIMart, call the Flux 2 API by setting model to flux-2-pro. FLUX.1 Kontext (flux-kontext-pro and flux-kontext-max) is also available with the same API key.

How can I contact support for help?

You can reach us via the live chat in the bottom-right corner, email us at [email protected], or join our Discord community. Our team will get back to you as soon as possible.

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FLUX.2 Pro API FAQ

Answers based on the FLUX.2 Pro API behavior.

How many reference images can FLUX.2 Pro use?

The FLUX.2 Pro API accepts up to 8 reference images as publicly accessible URLs or Base64 for editing, composition, and visual consistency.

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 Pro priced, and what happens if a task fails?

Is there a discount on the FLUX.2 Pro API?

Yes. Prices shown on this page are Gold member prices, already 20% off. Platinum and Diamond members save even more, up to 28%, and you only pay for successful requests.

How do I get a FLUX.2 Pro API key?

Is the Flux 2 API the same as the FLUX.2 API?

How can I contact support for help?

You can reach us via the live chat in the bottom-right corner, email us at [email protected], or join our Discord community. Our team will get back to you as soon as possible.