GPT Image 2.5 Flare vs 
Flux 2 Pro GPT Image 2.5 Flare vs Flux 2 Pro: the same 8 pictures, side by side
A family portrait, a poster, a birthday card, a sleepy cat and a few impossible scenes. We gave OpenAI's GPT Image 2.5 Flare and Black Forest Labs' Flux 2 Pro exactly the same words and show you both pictures, untouched.
By chatmodel team Tested with GPT Image 2.5 Flare and Flux 2 Pro Updated
The short answer
GPT Image 2.5 Flare won 6 of our 8 tests and the other 2 were ties. Flux 2 Pro makes calm, realistic pictures and spelled every word right, but GPT Image followed the descriptions more fully and made the more finished pictures.
- GPT Image 2.5 Flare: 6 wins
- Flux 2 Pro: 0 wins
- 2 ties
Pick GPT Image 2.5 Flare if…
- You want a poster, a card or a cozy scene that's ready to print or share.
- You want to change a photo you already have: Flux 2 Pro can't do that on chatmodel.
Pick Flux 2 Pro if…
- You like a quiet, natural look, closer to a real photo than a magazine shot.
You don't have to choose: in chatmodel you can use both in the same conversation.
GPT Image 2.5 Flare vs Flux 2 Pro at a glance
| GPT Image 2.5 Flare | Flux 2 Pro | |
|---|---|---|
| Made by | OpenAI (the makers of ChatGPT) | Black Forest Labs (BFL) |
| Best at, in our test | Bold posters, cards and cozy, finished scenes | Calm, natural-looking photos |
| Weakest at, in our test | Small details, like the wrong kind of footprints | Leaves out parts of the description, like the tram climbing a hill |
| Rounds won (of 8) | 6 (+2 ties) | 0 (+2 ties) |
| Edits your own photos | Yes | No |
| Came out | September 2026 | November 2025 |
| On chatmodel | Included in Pro | Included in Pro |
The 8 tests, picture by picture
The same description to both, one try each, nothing retouched. Press “Try these words” to make your own.
Test 1 · A poster with real words on it
A poster with words on it: GPT Image is bolder
The description both got
A vintage travel poster with the words "VISIT LISBON" in bold letters at the top, a yellow tram climbing a steep hill at sunset, terracotta rooftops and the river in the distance, mid-century illustration style, flat colors
Winner: GPT Image 2.5 Flare. Both spelled “VISIT LISBON” correctly. GPT Image made a bold poster with the yellow tram climbing the hill above the rooftops and the river. Flux 2 Pro's tram is small and on a flat street, and there's little of the hill or the view.
Test 2 · A card with a name on it
A card with a name on it: GPT Image, ready to print
The description both got
A birthday card with the words "Happy 60th, Maria!" in elegant gold letters, surrounded by spring flowers and a small cake with candles, soft watercolor style
Winner: GPT Image 2.5 Flare. Both wrote “Happy 60th, Maria!” correctly. GPT Image made the card itself, big and full of flowers. Flux 2 Pro showed a small, pale card against a pink wall, so the words and the cake are much smaller.
Test 3 · A warm family portrait
A family portrait: a tie
The description both got
A smiling grandmother in her sixties picking ripe tomatoes in a sunlit vegetable garden, straw hat, soft golden evening light, natural skin texture and laugh lines, shallow depth of field, 50mm documentary photo
A tie. Two warm, believable grandmothers picking tomatoes. GPT Image went for golden evening light and a basket of tomatoes. Flux 2 Pro looks more like a quiet documentary photo, with her looking down at the plant. Both look real.
Test 4 · Food that looks good enough to eat
Food that looks good enough to eat: GPT Image
The description both got
A homemade apple pie with a golden lattice crust on a rustic wooden table by a rainy window, a wisp of steam rising, cinnamon sticks and a cup of tea beside it, cozy autumn kitchen, food magazine photo
Winner: GPT Image 2.5 Flare. GPT Image put the pie front and center with the rainy window, the tea and the cinnamon sticks, plus apples and autumn leaves, and it feels cozy. Flux 2 Pro has everything we asked for, but in a grey kitchen that feels less like autumn.
Test 5 · A pet portrait
A pet portrait: GPT Image gets closer
The description both got
A fluffy orange cat asleep on a sunny window seat next to a stack of old books and a potted fern, soft morning light, warm and cozy home photo
Winner: GPT Image 2.5 Flare. GPT Image made the sleeping cat the star, next to a tall stack of old books and the fern. Flux 2 Pro's picture is sunny and real, but the cat is smaller and the “stack of old books” is just two.
Test 6 · Something that could never happen
Something impossible, a dog on the moon: a tie
The description both got
A golden retriever wearing a small astronaut helmet sitting on the surface of the moon, the blue Earth rising behind him, footprints in the grey dust, playful, photorealistic
A tie. Both made a golden retriever in a helmet with the Earth behind it. GPT Image's dog is bigger, clearer and happier, but the footprints are human boot prints. Flux 2 Pro drew paw prints too, though its dog looks a little stiff.
Test 7 · A scene from a dream
A scene from a dream: GPT Image fills it with light
The description both got
A giant whale made of clear glass floating above desert sand dunes at sunrise, sunlight refracting through its body and throwing rainbow patterns on the sand, a lone traveler looking up, photorealistic, wide shot
Winner: GPT Image 2.5 Flare. The description asked for sunlight throwing rainbow patterns on the sand. GPT Image spread them across the dunes under a big, sparkling whale. Flux 2 Pro's scene is lovely, with a traveler shading his eyes, but the rainbows cover only one patch.
Test 8 · A painting in a classic style
A painting in a classic style: GPT Image looks more like watercolor
The description both got
A watercolor painting of a small Tuscan village on a hilltop with cypress trees and a winding road, loose brushstrokes, soft pastel colors, white paper showing through, painted by hand
Winner: GPT Image 2.5 Flare. We asked for loose brushstrokes and white paper showing through. GPT Image's painting is light and loose, with white paper around the edges. Flux 2 Pro's is careful and realistic, closer to a detailed painting than a quick watercolor, with little white paper.
Scorecard
| Test | Winner |
|---|---|
| 1. A poster with real words on it | GPT Image 2.5 Flare |
| 2. A card with a name on it | GPT Image 2.5 Flare |
| 3. A warm family portrait | Tie |
| 4. Food that looks good enough to eat | GPT Image 2.5 Flare |
| 5. A pet portrait | GPT Image 2.5 Flare |
| 6. Something that could never happen | Tie |
| 7. A scene from a dream | GPT Image 2.5 Flare |
| 8. A painting in a classic style | GPT Image 2.5 Flare |
| Total | GPT Image 2.5 Flare 6 · Flux 2 Pro 0 · 2 ties |
What it costs, in plain words
OpenAI and Black Forest Labs each sell their own access. In chatmodel, GPT Image 2.5 Flare and Flux 2 Pro are both included in Pro, with every other image model, so you can try the same idea with several of them. See the current prices on the pricing page.
Can you trust the pictures?
Both spelled every word right in our test, but that isn’t guaranteed. Before you print a card or a poster, read every word on it, and check that everything you asked for is there: Flux 2 Pro sometimes leaves parts out. And remember the pictures are made up: don’t use them to show something that really happened.
How we tested
We wrote 8 descriptions of the pictures people actually make: a family portrait, food, a poster, a birthday card, a pet, and a few impossible scenes. Both models got exactly the same words, one try each, and we kept the first picture without retouching it. We judged how well each picture followed the description and how good it would look printed or shared.
One try each is a small test: ask again and you’ll get a different picture. Treat the winners as a guide, and try your own idea with both. To see how GPT Image does against Google’s models, read GPT Image vs Nano Banana Pro.
What changed
- First test: GPT Image 2.5 Flare and Flux 2 Pro, 8 descriptions, one try each.