Flux Kontext is one of the most advanced tools for AI image editing — allowing you to modify images using natural language instructions. Whether you're changing a character's expression, adding objects, or altering the background, Flux Kontext makes it simple, fast, and precise.

In this guide, you’ll learn:

How to generate images using Flux Kontext
How to apply edits with natural language
Tips for writing great instructional prompts
Bonus tools to extend, animate, or upscale your visuals

What Is Flux Kontext?

Flux Kontext is a next-generation AI model built for instruction-based image editing. Unlike basic text-to-image generators, it allows you to make detailed changes to an existing image simply by describing what you want.

For example:

“Add a rainbow in the sky”
“Change the person’s shirt to green”
“Make it look like nighttime”

Flux Kontext preserves the original image’s style, structure, and characters while applying your changes.

Choosing a Platform to Use Flux Kontext

While Flux Kontext is available to developers via API, most users need a no-code platform to access its features easily. That’s where NightCafe stands out.

Why We Recommend NightCafe:

✅ User-friendly interface — No coding or setup required
✅ Fast, stable processing — Quick edit and render times
✅ Built-in edit options — Like outpainting, upscaling, and animation
✅ Creative history tracking — Revisit and modify previous versions
✅ Active community — Share and discover AI-generated art

NightCafe is currently the easiest and most accessible way to use Flux Kontext for image generation and editing.

Step 1: Generate an Image Using the Flux Kontext Model

To begin editing, you first need to generate an image using the Flux Kontext model.

Here’s how on NightCafe:

Go to NightCafe
Click "Create" in the main menu at the top (not in the page content)
Sign up for a new account if you don’t already have one
In the AI model section, choose “Browse all models” and find “Flux Kontext”
1. If you don’t see the model picker, it might be because NightCafe gives new users a simpler interface - just enable “Advanced mode” at the top of the create form
2. If you can’t find Flux Kontext in the model picker, make sure you’re on the “Checkpoints” tab, then use the search on that tab to find it
Enter a text prompt. E.g. “a forest scene with neon lighting”. I recommend enabling Prompt Magic if you’re in advanced mode, this enhances your prompt for a better image
Click "Create" at the bottom of the create form to generate your base image

The “Create” panel in the NightCafe creator studio.

Step 2: Use "Prompt to Edit" to Modify Your Image

Once your image is created, you can use Flux Kontext’s editing feature:

Open your creation on NightCafe
Underneath the image you’ll see a row of buttons like “Upscale”, “Creative Upscale” etc
Select “Prompt to edit” from this menu
Type your edit instruction (e.g. “Add a cyberpunk cyborg lion standing proudly on the forest path”
Click "Edit" to apply the edit

Each edit results in a new image that reflects your changes while keeping the visual style and layout of the original.

Tips for Writing Better Edit Prompts

Writing clear and specific instructions helps you get better results with Flux Kontext. Here are some best practices:

✅ Be direct: Use clear verbs like “add,” “remove,” or “change”
✅ Specify the object: Say “change the car to blue” instead of just “change color”
✅ One instruction at a time: Keep edits simple and chain them if needed
✅ Reference visible elements: It helps if the object you’re editing is clearly in the original image
✅ Specify things you want to preserve: Especially for people, it helps to include things like “Preserve the exact character and their facial features”

Bonus: Use Other NightCafe Edit Tools

Flux Kontext isn't the only tool at your disposal. NightCafe also includes several powerful options accessible from the same edit menu:

Creative Upscale

Enhances image resolution and creates new details in the process
Great for making your image look more detailed and sharp

Animate

Turns your image into a video
Requires a paid NightCafe account

Extend (Outpainting)

Expands your image in any direction
Useful for turning a square image into a banner, wallpaper, or scene

Final Thoughts

Flux Kontext gives you the power to control and edit images with natural language — no manual editing, layers, or advanced tools required. And with platforms like NightCafe, using it becomes seamless, fast, and even fun.

Whether you're refining a concept, creating digital art, or producing marketing visuals, Flux Kontext unlocks a new level of creative freedom — and NightCafe makes it accessible to everyone.

Try It Now

🖼️ Start using Flux Kontext today at NightCafe

How to use Flux Kontext AI to edit images