FLUX Kontext: How to Edit Photos with a Text Prompt (2026 Guide)
For years, editing a photo meant layers, masks and selection tools. FLUX Kontext changes that: you upload an image and simply say what should change. “Make it night.” “Change the jacket to red leather.” “Put her in a Paris café.” The model edits the image while keeping everything else, including the person’s face, recognizably the same. Here’s how to get great results.
- Describe the change and what to keep: “change the sky to sunset, keep the people and buildings the same”.
- Kontext Pro for everyday edits, Kontext Max for important images, Fill Pro for inpainting and extending edges.
- One change per edit gives cleaner results; chain edits for bigger transformations.
- Every edit is 1 credit on PulseMotionHub.
The Three Editing Models
| Model | Use it for | Cost |
|---|---|---|
| FLUX Kontext Pro | Fast, reliable instruction-based edits | 1 credit |
| FLUX Kontext Max | Highest quality for hero images and fine detail | 1 credit |
| FLUX Fill Pro | Inpainting (repaint an area) and outpainting (extend the image) | 1 credit |
All three live in the Image to Image tab. Upload a JPG, PNG or WEBP (up to 5MB) or paste an image URL.
How to Write an Edit Prompt
A good edit prompt has two parts: the change and what to preserve.
Change the background to a sunny Mediterranean terrace with the sea behind her, keep her face, hair and outfit exactly the same
- Be specific. “Red leather jacket” beats “different jacket”.
- Name what must not change. Faces, logos, product labels, text.
- One change at a time. Relight first, then change the outfit, then the background.
- Use plain language. Kontext understands instructions like you’d give a human retoucher.
Edits You Can Make
Change the background
Place this person in a modern glass office with a city view, soft daylight, keep the person exactly the same
Change clothing or colors
Change his shirt to a navy blue linen shirt, keep everything else the same
Relight or change time of day
Make this street scene night time with warm streetlights and wet reflective pavement
Change the season or weather
Make it winter with light snow falling and snow on the rooftops, keep the house the same
Restyle the whole image
Turn this photo into a watercolor illustration with soft edges and paper texture
Add or remove elements
Remove the people in the background, keep the couple in the foreground unchanged
Inpainting and Outpainting With Fill Pro
FLUX Fill Pro is the precision tool. Use it to repaint a specific area, fix a detail (a misspelled word in an AI image, a stray object) or extend the canvas. Extending is especially useful for changing aspect ratio: turn a square photo into a 9:16 vertical image for Reels without cropping the subject.
Chaining Edits: A Real Example
- Start: a phone photo of a ceramic mug on a messy desk.
- Edit 1 (Kontext Pro): “Remove the clutter from the desk, keep the mug the same.”
- Edit 2 (Kontext Pro): “Change the desk to light oak wood with morning sunlight from the left.”
- Edit 3 (Kontext Max): “Add a small plant and an open notebook beside the mug, keep the mug design identical.”
- Animate (Image to Video, 1 credit): “Steam rises gently from the mug, sunlight shifts slowly.”
Four credits from phone snapshot to a styled product video. See AI product photography for the full e-commerce workflow.
When Results Go Wrong
- The face changed: add “keep her face exactly the same”, or switch to Kontext Max.
- Too much changed: split the instruction into smaller edits.
- Text got garbled: repair just that area with Fill Pro, or add text afterward in a design app.
- Edges look odd after extending: extend in two smaller steps instead of one large one.
Frequently Asked Questions
What is FLUX Kontext?
FLUX Kontext is an image editing model from Black Forest Labs. You upload an image and describe the change in plain language, and it edits the image while keeping the rest consistent.
What is the difference between Kontext Pro and Kontext Max?
Kontext Pro is fast and reliable for everyday edits. Kontext Max aims for the highest quality and detail. Both cost 1 credit on PulseMotionHub.
Can FLUX Kontext change a photo background?
Yes. Describe the new background and add “keep the person exactly the same”. It’s one of the most common and reliable Kontext edits.
How do I extend an image to a different aspect ratio?
Use FLUX Fill Pro in the Image to Image tab to outpaint the missing area, for example turning a square photo into a vertical 9:16 image.
Related Articles
- FLUX AI image generator: complete guide
- AI product photography without a studio
- FLUX vs Ideogram vs Recraft
- Best AI background removers
- What every PulseMotionHub tool costs in credits
Edit Any Photo by Describing It
FLUX Kontext Pro, Kontext Max and Fill Pro at 1 credit per edit, plus six image models and video tools. Subscribe from $47/mo or buy credits pay-per-use. New customers get 20% off their first card payment.
⚡ Get Started →20% off first card payment automatically · Plans from $47/mo · Or pay-per-use, no subscription