Head to head: FLUX.1 Krea [dev] vs Luma Uni-1 Edit Max

FLUX.1 Krea [dev] vs Luma Uni-1 Edit Max

One model brought occasional atmosphere; the other brought control. This matchup turns on whether you value vibes over obedience—and the results leave very little doubt.

FLUX.1 Krea [dev] has taste, but Luma Uni-1 Edit Max has discipline. On the aggregate, Luma posts a **71.3 to 55.4** win, takes **6 of 8 tasks** outright, and the statistical read is the important part: **96% confidence**, which puts this in decisive territory rather than a marginal edge. The split is easy to explain. Whenever the prompt demanded hard compliance—**legible multi-line text, exact counting, poster typography, dense mechanical detail, facial expression specificity, and believable hand action**—Luma was simply the more reliable system. It rendered the three-line navy poster correctly, got to **exactly seven** espresso cups, nailed the Swiss-style harbor tram ad text, and consistently held onto the small but crucial details that FLUX kept dropping, mangling, or stylizing away. FLUX’s lone win, in **perspective & scale**, is real and worth noting. Its library aisle showed stronger one-point perspective and a more convincing documentary-photoreal look than Luma’s warmer, slightly stylized take. And in the **color-bound cargo lineup** task, the draw also says something useful: FLUX was often better at object fidelity, while Luma was better at matching the requested illustrated style. But those are exceptions, not the shape of the contest. The broader pattern is that FLUX too often substituted mood for accuracy. It repeatedly produced attractive images that missed the assignment in ways that matter: misspelled text, extra symbols, wrong type choices, count errors, weaker prompt-specific anatomy or action, and scenes that drifted from the requested framing. Luma wasn’t flawless—some expressions were a bit ambiguous, some object forms softened—but it stayed on prompt far more consistently. **Final call: Luma Uni-1 Edit Max is the clear winner.** If your workload includes text, counting, prompt-specific edits, or any task where precise adherence matters more than aesthetic improvisation, this head-to-head is not close.

Legible multi-line text

A minimalist event poster with three lines of crisp, correctly-spelled text stacked and centered: 'NIGHT MARKET' large on top, 'Fridays · 6–11pm' in the middle, 'Riverside Pier 4' at the bottom, on a deep navy background, clean sans-serif, subtle grain.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model B adheres closely to the prompt with all three lines centered, clean sans-serif typography, correct spelling, and an appropriate deep navy grainy background. Model A has a pleasing poster feel, but it fails the key text-rendering requirement with misspellings, extra symbols, an added footer mark, and a serif typeface that departs from the prompt. (Second judge pass, order swapped — scores are the average of both: Model B closely matches the prompt with three centered lines of crisp, correctly spelled sans-serif text on a deep navy background with subtle grain, and the hierarchy is clear and clean. Model A has major text rendering errors, uses a serif style instead of clean sans-serif, adds extraneous symbols and text, and breaks the requested wording and layout.)

Exact counting

A clean overhead flat lay on white marble of EXACTLY seven identical espresso cups arranged in a single straight row, each clearly separate and individually countable, even soft lighting, 16:9.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model B better matches the prompt by showing exactly seven clearly separate identical espresso cups in a straighter row on white marble, with a cleaner overhead flat-lay composition. Model A is aesthetically solid, but it appears to contain only six cups, which is a major failure for an exact-counting prompt. (Second judge pass, order swapped — scores are the average of both: Model B matches the prompt much better by showing exactly seven identical espresso cups in a clear single straight row on white marble, with each cup separate and easy to count. Model A appears to show only six cups and the row is less precise, though it is still clean and technically solid.)

Harbor Tram Poster Text

A clean editorial photograph of a glass transit shelter at dusk, 16:9, showing a backlit poster for a fictional harbor tram service; the poster must be sharply legible and centered in frame, with the exact headline text "NORTH QUAY TRAM" and beneath it the smaller lines "Route 7B", "Departs 06:42", and "Bay Lantern District"; modern Swiss typography, teal-and-cream color palette, light rain on the shelter glass, soft reflections from passing streetcars, realistic materials, high readability prioritized over decoration.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model B adheres much more closely to the prompt: the poster is centered, sharply legible, uses a clean Swiss-style teal-and-cream layout, and renders all required text correctly. Model A has a pleasing rainy dusk mood, but the poster text contains multiple errors and extra illegible text, reducing both readability and prompt fidelity. (Second judge pass, order swapped — scores are the average of both: Model B adheres much more closely to the prompt: the poster is centered, sharply legible, uses the requested teal-and-cream Swiss-style typography, and includes the exact required text with realistic rainy shelter details. Model A has appealing atmosphere, but the poster is not centered, adds decorative illustration, and the smaller text contains clear rendering errors and does not match the exact requested wording.)

Perspective & scale

A photorealistic one-point-perspective shot down a long empty library aisle, shelves receding to a single vanishing point, books getting consistently smaller with distance and nothing warped or wrongly sized, warm overhead light, 16:9.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model A better matches the prompt with a clearly photorealistic, long empty library aisle in strong one-point perspective, with shelves and book sizes receding consistently to a single vanishing point. Model B is attractive and well composed, but it feels more stylized than photorealistic and the aisle appears narrower and less convincingly scaled as a long library stack. (Second judge pass, order swapped — scores are the average of both: Model A better matches the prompt’s one-point-perspective requirement with cleaner, more consistent shelf recession and book scaling toward a single vanishing point, while maintaining a believable empty library aisle. Model B is warmer and more cinematic, but its shallow depth of field and slightly stylized look make the perspective feel less rigorously documentary-photorealistic for this specific task.)

Cog Train Detail Study

An ultra-detailed macro-style realism image of an antique mountain cog railway locomotive paused in a repair shed, three-quarter view, 16:9; emphasize crisp fine texture everywhere: braided steam hoses, chipped enamel gauges, oily gear teeth, soot embedded in rivets, frayed canvas tool rolls, rough wool mechanic gloves, and a dusting of metallic filings on the floorboards; narrow shafts of morning light cut through the shed windows and reveal the textures without haze or smudging, with every small surface rendered sharply and distinctly.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model B adheres much more closely to the prompt by presenting a macro-style three-quarter repair-shed study with sharply rendered braided hoses, chipped gauges, oily cog teeth, gloves, tool rolls, and metallic filings all clearly visible. Model A has a pleasing mood and lighting, but it reads more like a wider locomotive portrait and misses the cog-railway detail emphasis and the dense texture inventory requested. (Second judge pass, order swapped — scores are the average of both: Model B matches the requested antique mountain cog locomotive repair-shed macro study much more closely, with a clear three-quarter view, visible cog gear, and abundant sharply rendered textures like braided hoses, gauges, gloves, tool rolls, and metallic filings. Model A has appealing lighting, but it misses key prompt specifics such as the cog railway emphasis and the dense ultra-detailed texture study, and its scene feels less crisp and more generalized.)

Mechanic's Relieved Smile

A cinematic close-up portrait of a vintage seaplane mechanic standing on a moonlit dock beside a repaired floatplane, 16:9, realistic film still style; the subject is a woman in grease-smudged coveralls with windblown hair, looking directly at the camera with unmistakable relieved joy after a successful engine test—eyes glossy with release, cheeks lifted, mouth open in a small breathy laugh, shoulders visibly relaxing; cool blue night lighting mixed with a warm amber work lamp from below, shallow depth of field, the aircraft and dark water softly blurred behind her.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model B better matches the prompt’s cinematic close-up, moonlit dock setting, grease-smudged mechanic styling, and the specific expression of relieved joy with warm-under cool mixed lighting. Model A is attractive and cleanly composed, but it reads more like a cheerful portrait in overalls than a vintage seaplane mechanic after an engine test, and the emotion is more exuberant laughter than relieved release. (Second judge pass, order swapped — scores are the average of both: Model B better captures the close-up, direct-to-camera framing and the mixed cool/amber cinematic lighting, but the expression reads more surprised than clearly relieved joy and the image is quite dark. Model A is more immediately joyful and visually polished with a strong floatplane-on-water backdrop, though it misses the requested close-up intimacy and direct eye contact.)

Color-Bound Cargo Lineup

A brightly lit studio product tableau in a pastel storybook illustration style, 16:9, showing four transport-related cargo objects arranged in a neat row on a loading dock, each with its own exact color and material: a matte cobalt-blue metal fuel can, a glossy tangerine glass signal lantern, a pale mint-green canvas duffel, and a deep plum-purple ceramic insulated lunch flask; the objects must remain clearly separate, with no color swapping or bleeding, soft shadows, simple background, crisp edges, and a slightly elevated front-facing composition.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model A gets the colors and separation mostly right, but it misses the pastel storybook illustration style and uses a more photoreal 3D look with a less simple background. Model B better matches the illustrated studio-tableau feel with crisp edges and clean composition, though its fuel can and duffel are somewhat less exact to the specified forms and materials. (Second judge pass, order swapped — scores are the average of both: Model A adheres more closely to the specified object types and loading-dock tableau, with a clearer fuel can, glass lantern, canvas duffel, and insulated flask arranged separately in a neat row. Model B has appealing storybook styling and crisp edges, but it misses key object details—the fuel can reads more like a bottle, the duffel becomes a pouch, and the lantern/flask forms are less accurate.)

Hands & anatomy

A natural candid photo of a person tying a friendship bracelet, both hands clearly visible with anatomically correct fingers and a plausible grip on the threads, soft daylight, shallow depth of field, 16:9.

FLUX.1 Krea [dev]:

Luma Uni-1 Edit Max:

Model B better matches the prompt with a believable candid photo of someone actively tying a friendship bracelet, showing both hands with more plausible finger anatomy and grip, plus natural soft daylight and shallow depth of field. Model A is clean and centered, but it feels more staged/studio-like and the bracelet-tying action is less convincing despite generally decent hand anatomy. (Second judge pass, order swapped — scores are the average of both: Model B better matches the prompt with a natural candid photo feel, soft daylight, shallow depth of field, and a believable bracelet-tying action with both hands clearly visible and mostly anatomically correct. Model A has cleaner symmetry and solid anatomy, but it feels more staged/studio-like and less specifically like tying a friendship bracelet in a candid photographic moment.)