Flux AI

The most controllable
AI image generator

For marketers who need the same shot back next week. Flux is the open-weights model that gives you control: lock seeds for exact reproduction, run image-to-image with a strength slider, brush inpaint masks and outpaint canvases. 12 credits per image, the cheapest tier on Viral Engine.

Try Flux free See what it does

Capabilities

Four creative tools, one model

Seed control

Lock the random seed to reproduce any result. Adjust the prompt slightly and the same seed gives you a controlled variation. Flux is the only model on the platform with a seed field.

Image to image

Upload any photo and transform style, lighting, color or subject while keeping the composition. The strength setting dials in how much changes.

Inpainting

Brush over any region of an image and regenerate just that area. Replace backgrounds, swap products, fix hands, all without re-rolling the rest of the frame. 12 credits per edit, on any image in your gallery.

Outpainting

Expand any image beyond its original frame. Turn a square product shot into a 16:9 banner or a vertical story. Flux continues the scene naturally. 12 credits per expansion.

When Flux wins

Pick Flux when you need...

🎯

Exact reproducibility

When a client needs the same image regenerated weeks later, only Flux gives you that with seed locking.

🖌️

Surgical edits

When 90% of the image is right and 10% needs a fix. Inpainting beats re-rolling.

📐

Aspect-ratio expansion

When you have a portrait shot but need a banner. Outpainting extends the scene without re-shooting.

💰

High-volume budget runs

12 credits per image is the cheapest tier. The 200 signup credits buy 16 Flux images, and the Essential plan's 4,000 credits buy 333.

How to use it

Flux on Viral Engine in four steps

1

Pick Flux in the Image Studio

Choose Flux from the model picker. The seed field and the 1K, 2K and 4K quality options appear with it.

2

Prompt, or start from an image

Write the shot, or switch on image-to-image, upload a source and set the strength. Use Magic Prompt to expand a rough idea into a detailed prompt.

3

Lock the seed once you like it

Copy the seed from a result you like into the seed field. Every later variation keeps the composition while you change the words.

4

Edit and expand

Open any result in Edit to inpaint a region or outpaint the canvas, then send it to the Video Factory or download it.

Questions

Flux FAQ

An open-weights image generation model from Black Forest Labs, one of the strongest open-source AI image models. On Viral Engine it is the only model with seed control, and it powers image-to-image, inpainting and outpainting. 12 credits per image.
Nano Banana 2 wins on speed and prompt understanding. Nano Banana Pro wins on studio quality and hero shots. GPT Image 2 wins on in-image text. Flux wins on creative control and price. Pick by job, not by default.
Every generation has a seed. Lock the seed and keep the prompt identical to get the exact same image back. Change the prompt slightly and the same seed produces a related variation with a stable composition. Flux only.
Yes. Upload a source image, write a transformation prompt, and set the strength to control how much changes. Inpainting and outpainting also run on Flux, 12 credits each.
12 credits at 1K, 18 credits at 2K (1.5x), 24 credits at 4K (2x). Inpainting and outpainting are 12 credits each. 200 free credits on signup, enough for 16 Flux images.
Yes. Commercial use is allowed. See Terms of Service.

Generate your first Flux image free

12 credits per image. 200 credits free on signup. No credit card.

Start free