by Black Forest LabsImage

FLUX.2 Klein 4B LoRA

Small, quick FLUX.2 Klein 4B with your own LoRAs

  • Up to 2K
  • Up to 3 reference images
  • 9 aspect ratios
  • Loads your own LoRA

From 3 credits per image≈ $0.03· Create Image

Counter pie blue hour
Made with FLUX.2 Klein 4B LoRA

What it's like to use

FLUX.2 Klein 4B LoRA runs Black Forest Labs' compact, open FLUX.2 Klein 4B with up to three of your own LoRA files, returning images in about four seconds. Text to image in nine shapes up to 2048 pixels, and edits from up to three source photos.

Good for

  • Running community Klein 4B LoRAs in seconds
  • Illustration series in coloured pencil, comic or painterly styles
  • Redrawing a photo in a LoRA's style while keeping the person and setting

Real results from FLUX.2 Klein 4B LoRA

Every image and clip here was generated with FLUX.2 Klein 4B LoRA. Hit Recreate to open it in the studio with the same prompt and settings.

Counter pie blue hour
Create Image
Diner pencil redrawInputInput
Edit Image

Bring your own image

Ice machine pencil
Create Image
Motel office two women
Create Image

What FLUX.2 Klein 4B LoRA can do

Each mode opens in the studio with FLUX.2 Klein 4B LoRA already picked. The price shows before you generate.

How to prompt FLUX.2 Klein 4B LoRA

  1. Use LoRAs made for FLUX.2 Klein 4B or Klein Base 4B; 9B and FLUX.1 files change nothing.
  2. If a style barely shows at strength 1, try 1.5 to 2 with the same seed. At the top of the range the image falls apart.
  3. Trigger phrase first, then full sentences. There's no negative prompt, so say what you want.

Settings worth knowing

Everything else has a sensible default, so you can type a prompt and go.

resolution1K · 2K
Output size. Bigger sizes look sharper and cost more.
aspect_ratio1:1 · 16:9 · 9:16 · 4:3 +5
The shape of the frame: wide, square or tall.
image_urls≤ 3
Photos to edit or combine. Say in the prompt what each one adds.
seed0–2147483647
Reuse the same number to get a repeatable result.
loras≤ 3
Load your own LoRA files to lock in a style or character.

How it compares

Same kind of job, different strengths and prices.

FLUX.2 Klein Base 4B LoRA responds more strongly to style LoRAs and varies more between seeds, but is about four times slower.

Questions about FLUX.2 Klein 4B LoRA

How much does FLUX.2 Klein 4B LoRA cost?

On PopNow, the cheapest run of FLUX.2 Klein 4B LoRA costs 3 credits ($0.03) per image. You pay with credits (1 credit = $0.01), the exact cost shows on the Generate button before you start, and failed generations are refunded automatically.

What can FLUX.2 Klein 4B LoRA do?

On PopNow, FLUX.2 Klein 4B LoRA works in these modes: Create Image and Edit Image. Pick one in the studio and add a prompt or an upload.

What sizes can FLUX.2 Klein 4B LoRA make?

FLUX.2 Klein 4B LoRA renders up to 2K in 9 aspect ratios, and edits with up to 3 reference images.

How should I write prompts for FLUX.2 Klein 4B LoRA?

Use LoRAs made for FLUX.2 Klein 4B or Klein Base 4B; 9B and FLUX.1 files change nothing. If a style barely shows at strength 1, try 1.5 to 2 with the same seed. At the top of the range the image falls apart. Trigger phrase first, then full sentences. There's no negative prompt, so say what you want.

FLUX.2 Klein 4B LoRA or FLUX.2 Klein Base 4B LoRA?

FLUX.2 Klein Base 4B LoRA responds more strongly to style LoRAs and varies more between seeds, but is about four times slower.

Do I need to install anything to use FLUX.2 Klein 4B LoRA?

No. FLUX.2 Klein 4B LoRA runs in your browser on PopNow: write a prompt or add a file, choose the settings and download the result. Sign up and you can generate straight away.

Make something with FLUX.2 Klein 4B LoRA

Type an idea, pick your settings and see the price before you hit Generate.