Flux 2

Black Forest Labs · Image · 1K, 2K

API
Saved
Example

Your picture will appear here

Fill in the settings and press Run. The result is also saved to your library.

Price

Reference price

No published price yet - this model is not in the public price list.

What the price depends on

  • This model is billed per generation, so the price does not depend on how long you wait.
  • Resolution and quality settings change the price. Change one and the number above follows.
  • A generation the provider fails is not charged. A chat answer is charged for what the model wrote and thought, even if you stop it.

Prices are in credits. What a credit costs is on the pricing page.

Which one to pick

ModelKey specsPrice from
Flux 2· you are here1K, 2K—
Flux Kontext1:1, 4:3, 3:4…—
Flux 1.1 Pro Ultra1:1, 16:9, 9:16…—
Flux 1.1 Pro1:1, 16:9, 9:16…—
Flux 1 Krea1024x1024, 1216x832, 832x1216…—
Flux 2 Dev1024*1024, 1216*832, 832*1216…—
Flux Kontext Dev——
Flux 1 Pro Tools——

About the model

FLUX 2 asks for resolution and aspect ratio up front — 1K or 2K, eight ratios — instead of guessing the format for you.

Produces
Image
Takes
text, pictures
Prompt
5,000 characters
Frame shape
1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3
Resolution
1K, 2K

What you can set

Every setting of this model and the choices it allows — the same as in the form.

  • Resolutionrequired
    1K2K
  • Aspect ratiorequired
    1:14:33:416:99:163:22:3Auto
  • Input images
    up to 8 files

For developers

Run this from your own code

The same request the Generate tab sends, with the settings you have chosen.

Model id:flux-2
curl -X POST https://seedara.ai/api/v1/generate \
  -H "Authorization: Bearer $SEEDARA_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{
  "model": "flux-2",
  "prompt": "Describe the image: subject, style, framing, lighting...",
  "params": {
    "resolution": "1K",
    "size": "1:1"
  }
}'

This snippet updates as you change the form. Copy it once the settings are the ones you want.

Request parameters

What goes in `params`, by the names the API uses.

Required

The model refuses the request without these.

ParameterTypeAccepted valuesDefault
resolution

Resolution

one of a list1K2K—
size

Aspect ratio

one of a list1:14:33:416:99:163:22:3auto—

Optional

Left out unless you set them - the provider then applies its own default.

ParameterTypeAccepted valuesDefault
image_urls

Input images

imagesup to 8 files—

How a generation runs

  1. POST /v1/generate answers immediately with a job_id - it does not wait for the result.
  2. Poll GET /v1/jobs/{id} until status is completed or failed.
  3. A completed job carries output_url - the finished file.
curl https://seedara.ai/api/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $SEEDARA_API_KEY"
Questions

Frequently asked about Flux 2

New
Start now

Your first image —
in a minute

Describe what you want to see — the model does the rest.

Takes you to the settings — prompt, format and price are already there
  • No auto-charges
  • Pay only for a finished result
  • Works are kept in your Library
100credits as a gift
1:1 · 4:3 · 3:4Frame shape