FLUX.2 Pro Preview API

Preview release of the FLUX.2 Pro image model.

Modalities
Image, TextImage
Price
$0.03per Megapixel
Model type
Image generation
Released
Jun 12, 2026

FLUX.2 Pro Preview overview

Sample FLUX.2 Pro Preview image generated through AI/ML API: A ginger cat asleep on a stack of exactly three hardcover books in a rainy bookshop window at dusk. Gold lette

FLUX.2 Pro Preview specs

Model ID
blackforestlabs/flux-2-pro-preview
Developer
Black Forest Labs
Input
Image, Text
Output
Image
Endpoint
POST https://api.aimlapi.com/v1/images/generations

What is FLUX.2 Pro Preview API?

Preview release of the FLUX.2 Pro image model.

FLUX.2 Pro Preview API Pricing
- Pricing on request

Where to Use FLUX.2 Pro Preview

Use cases

Production image generation and editing is a documented use case for FLUX.2 Pro Preview, which is described as Black Forest Labs’ recommended default for production image generation and editing.

Multi-reference editing is another documented use case, including combining two reference images in a single composition.

It is also documented as suitable for image generation tasks using text prompts, and the preview endpoints are described as the best place to start for such use cases.

Reproducible PNG output for downstream editing pipelines is a documented use case as well, with seeded generation and PNG output called out explicitly.

FLUX.2 Pro Preview benchmarks by Artificial Analysis

Human-preference results for FLUX.2 Pro Preview in text to image, next to models available on AI/ML API. Data retrieved Nov 3, 2026.

Text to image

Elo · text-to-image arena

AI/ML API price

USD per Megapixel

Models on AI/ML API

Arena results for models you can call with the same API key.

Text to image

Blind pairwise human votes on images generated from text prompts. FLUX.2 Pro Preview ranks #44 of 98.

FLUX.2 Pro Preview API pricing

FLUX.2 Pro Preview pricing in US dollars
UsagePriceUnit
Image generation$0.03per Megapixel

The final price depends on request parameters such as resolution or duration.

Prices from the AI/ML API price list, checked on Nov 4, 2026.

FLUX.2 Pro Preview vs other image models: prices

AI/ML API rates for 5 models, per Megapixel.

AI/ML API prices in USD per Megapixel
ModelPer Megapixel
FLUX.2 Pro Preview$0.03
FLUX.2 Klein 4B$0.014
FLUX.2 Klein 9B$0.015
FLUX.2 Klein 9B Preview$0.015
FLUX.2 Flex$0.05

How to use the FLUX.2 Pro Preview API

View docs

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/images/generations' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "blackforestlabs/flux-2-pro-preview",
  "prompt": "A ginger cat asleep on a stack of exactly three hardcover books in a rainy bookshop window at dusk. Gold lettering on the glass reads OPEN LATE. Warm lamp light inside, raindrops and blurred neon reflections outside, 35mm film photo."
}'

Related articles

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FLUX.2 Pro Preview FAQ

What inputs and outputs does FLUX.2 Pro Preview support?

FLUX.2 Pro Preview takes image, text as input and returns image.

When was FLUX.2 Pro Preview released?

FLUX.2 Pro Preview became available on June 12, 2026.

How much does FLUX.2 Pro Preview cost?

FLUX.2 Pro Preview costs $0.03 per Megapixel on AI/ML API, billed as you go with no subscription.

How is FLUX.2 Pro Preview billed?

FLUX.2 Pro Preview is billed per generation, a fixed charge per output rather than by prompt length.

Can FLUX.2 Pro Preview take an existing image as input?

Yes, FLUX.2 Pro Preview accepts image input as well as a text prompt.

Who created FLUX.2 Pro Preview?

FLUX.2 Pro Preview was built by Black Forest Labs.

How do I call FLUX.2 Pro Preview on AI/ML API?

Send a request to https://api.aimlapi.com/v1/images/generations with blackforestlabs/flux-2-pro-preview as the model id.

Is FLUX.2 Pro Preview available through a single API key?

Yes. FLUX.2 Pro Preview is served through AI/ML API, so the same key and endpoint format used for other models applies.

What is the FLUX.2 Pro Preview model ID?

Use blackforestlabs/flux-2-pro-preview as the model parameter. Requests go to https://api.aimlapi.com/v1/images/generations with your AI/ML API key.

Start building with FLUX.2 Pro Preview

FLUX.2 Pro Preview API

blackforestlabs/flux-2-pro-preview

Build with your agent

Give your agent the model details, code and documentation.

1Get your API key

Create API key
export AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"

2Make your first request

curl 'https://api.aimlapi.com/v1/images/generations' \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
  "model": "blackforestlabs/flux-2-pro-preview",
  "prompt": "A ginger cat asleep on a stack of exactly three hardcover books in a rainy bookshop window at dusk. Gold lettering on the glass reads OPEN LATE. Warm lamp light inside, raindrops and blurred neon reflections outside, 35mm film photo."
}'