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Flux Kontext – Image-to-Image Prompting Guide

🖼️ Flux Kontext Prompting Guide: Image-to-Image Editing

Flux Kontext lets you edit existing images by writing natural instructions — no need for technical jargon or pixel-level detail. It understands what’s in the image and applies your instructions while keeping the composition and context intact.

To activate Kontext, just put an image inside the image import:

🎨 Basic Object Modifications

Flux Kontext is great for straightforward edits like changing the color of an object or modifying individual elements.

Prompt :

Change the yellow car to red.

✏️ Prompt Precision: From Quick Fixes to Detailed Edits

Being explicit helps—especially when your prompt includes more than one instruction.

Simple Prompts

Quick prompts can work but may also alter the style unintentionally.

Prompt:

Change to weather to beautiful sunny day. adapt the clothes of the woman. don't change the face of the woman. replace the hoodie by a light tulle veil

Controlled Prompts

Get better results by describing exactly what should stay the same.

Prompt:

Change to daytime while keeping the same painting style.

Complex Prompts

You can describe multiple changes in one go—just be clear and avoid ambiguity.

Prompt:

Change to daytime, remove people near the sail, and keep the painting style.

🧬 Style Transfer

Describe the Target Style

Flux Kontext supports stylistic transformations. Describe what you want clearly:

Transform into Klimt art style

Convert to 60's Pop Art Style

Be Clear About What Should Stay the Same

Apply Bauhaus style while preserving the original layout and object positions

🎭 Using a Style Reference Image

Instead of describing the style, you can use an image as a visual style reference.

Prompt example:

Using this style, generate a bunny, a dog, and a cat having tea around a white table.

👤 Character Consistency Across Edits

Flux Kontext can keep characters consistent across multiple edits—if you’re precise.

Start with:

“The woman stand up.”

Re-use image :

Hovering an image, selec "Reuse image":

Prompt sequence:

“Remove the hood, short hair. Don't change anything else. keep the same face, keep the same scale and positon.”

“Now she’s taking a selfie in the streets of Paris on a sunny day”

“Now it’s snowing—cover everything in snow”

Avoid using vague pronouns like “her” or “him.” Always refer to the character clearly.

🪧 Text Editing

You can directly update visible text in images. Use this prompt format:

Prompt:

Replace "RENAULT" with "SEELAB"

Tip: Keep the replacement similar in length, and say if you want to preserve font style and layout.

🎯 Targeted Edits Using Visual Cues

You can also draw on the image (or use bounding boxes) to show where changes should occur.

Prompt:

Add rear wing of a Formula 1  on the car.

🧭 What to Do When Results Aren’t Right

🎭 Identity changes too much?

Use more detail:

Bad: “Turn the man into a Viking”Better: “Change his clothes to Viking armor while keeping the same face and hairstyle”

🖼️ Composition shifts unexpectedly?

Be explicit:

Bad: “Put him on a beach”Better: “Change the background to a beach, keep his position, scale, and camera angle the same”

🎨 Style doesn’t apply correctly?

Add specifics:

Bad: “Make it a sketch”Better: “Convert to pencil sketch with visible graphite lines, cross-hatching, and paper texture”

✅ Best Practices Recap

Be specific: The more precise, the better
Use direct references: Say “the woman in red” not “her”
Preserve intentionally: Say what should stay the same
Iterate step by step: Big changes? Break them into parts
Control layout: Mention framing, scale, and position if you want them to stay
Quote text edits: Replace 'Sync & Bloom' with 'FLUX & JOY'
Choose verbs carefully: “Change” is safer than “transform”

The more clear and grounded your prompt, the more reliable your result.

Updated on: 11/07/2025

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