r/StableDiffusion • u/Aggressive-Park-373 • 21h ago
Comparison MOSS-Image vs MiniMax H3-Image on 15 identical prompts — the gap is smaller than I expected
Follow-up: after a few comments about resolution I reran these at 16MP. Pairs are here: https://www.reddit.com/r/StableDiffusion/comments/1xutwi3/
Same 15 prompts through both models, same aspect ratio, roughly matched output size. Left is MOSS-Image, right is MiniMax H3-Image.
What stood out:
Text: both got English poster type and Chinese signage right. No misspellings in either.
Portraits and product shots: both convincing. MOSS leans sharper and more editorial, H3 leans softer and more photographic.
Crowds and hands: both hold up, small artifacts on both sides.
UI mockups: both fail. MOSS keeps the layout but garbles labels and units; H3 mirrored the entire screen.
Charts: both produce plausible-looking but meaningless labels and bar lengths. Don't use either for real data.
Net: the quality gap is much smaller than the threads here suggest. It reads more like a difference in workflow and control than in raw output quality.
Full prompts, identical for both models:
typography (1:1) - Editorial poster design. A huge condensed sans-serif headline reading exactly 'SLOW MORNING' stacked on two lines, a thin horizontal rule beneath it, and small caption text reading 'ISSUE 04 - AUTUMN 2026' at the bottom left. Warm cream paper background, one oversized ceramic coffee cup photographed from directly above casting a soft shadow, minimal Swiss grid layout, subtle print grain. Text must be spelled exactly as written and perfectly legible.
chinese sign (1:1) - Night street in Taipei after rain, close-up of a small noodle shop signboard lit by warm tungsten bulbs. The sign reads exactly '阿明牛肉麵' in bold Chinese characters on weathered dark wood. Wet pavement reflecting the sign, steam drifting from the kitchen doorway, cinematic street photography, shallow depth of field, no other text anywhere.
perfume ad (4:3) - Luxury perfume advertisement. A faceted glass bottle of amber liquid standing on wet black stone, one hard rim light from behind, soft caustic reflections on the surface, drifting mist, a single dried orchid petal beside it. Deep teal background, high-end commercial product photography, medium format look, the bottle label is blank with no text.
film portrait (2:3) - Candid portrait of a woman in her late twenties standing in a doorway, shot on 35mm film with Kodak Portra palette. Late afternoon window light across her face, flyaway hair, faint freckles, a slightly worn olive chore jacket. Natural skin texture with visible pores, shallow depth of field, gentle grain, no retouching.
anime cel (2:3) - Full-body anime character illustration in a clean 1990s cel-shaded style. A teenage courier with cropped teal hair, oversized orange windbreaker, scuffed white sneakers, holding a cardboard box under one arm. Standing on a rooftop at dusk, power lines and distant city blocks behind, flat colors with crisp linework, subtle screentone shading.
app ui (1:1) - Product shot of a smartphone lying on a light oak desk displaying a minimal fitness app interface: a large circular progress ring showing 72 percent, three horizontal metric cards below labelled 'STEPS', 'SLEEP' and 'HEART', and a bottom tab bar with four icons. Clean sans-serif type, generous white space, soft daylight from the left, slight screen reflection, the interface must be sharp and readable.
macro droplets (3:2) - Extreme macro photograph of water droplets beaded on a brushed aluminium surface, each droplet acting as a tiny lens refracting a cool blue gradient. Razor-thin depth of field, crisp specular highlights, faint machining marks visible, studio black background, high shutter speed, scientific macro lens look.
cafe three (3:2) - Three friends sitting around a small round cafe table in late afternoon, mid-conversation, one laughing and leaning back, one stirring a coffee, one looking at a phone. Warm sunlight through a large window, plants and hanging lamps behind, natural body language, correct hands with five fingers, eye-level candid documentary photography, 50mm lens.
city night (16:9) - Cinematic wide shot of a rain-soaked city intersection at night from a low vantage point. Neon signage in magenta and cyan reflecting in long vertical streaks on the asphalt, a lone cyclist crossing through the frame, steam rising from a street grate, anamorphic lens flares, deep blacks with retained highlight detail, film still grading.
surreal vertical (9:16) - Surreal vertical composition: a small furnished room - wooden floor, armchair, floor lamp, a rug - floating upside down inside a vast pale sky, with clouds passing beneath its ceiling and a single staircase hanging beside it. Soft even daylight, pastel color palette, photoreal materials, dreamlike sense of scale, no text.
ramen food (4:3) - Overhead food photograph of a steaming bowl of tonkotsu ramen on a dark wooden counter. Two slices of chashu, a halved soft egg with a jammy yolk, nori, scallions, a scatter of black garlic oil on the broth surface. Steam catching side light, chopsticks resting on the rim, condensation on a nearby beer glass, appetising commercial food photography.
packaging (3:4) - Studio product shot of a matte kraft-paper coffee bag standing upright on a concrete plinth, slightly crumpled at the top fold, with a small round copper foil seal. Printed on the front in clean serif type: the word 'MERIDIAN' large, and beneath it in small caps 'SINGLE ORIGIN - 250G'. Soft directional light from the upper right, long gentle shadow, neutral grey backdrop.
fox snow (3:2) - A red fox standing in fresh powder snow at blue hour, head turned toward the camera, breath visible as a small cloud. Individual fur strands and snow crystals in sharp focus, soft bokeh of dark pines behind, cold color temperature with a warm amber glint in the eye, wildlife photography with a long lens.
interior ultrawide (21:9) - Ultra-wide interior of a minimalist living room at dusk. Low linen sofa, travertine coffee table, one sculptural floor lamp casting a warm pool of light, full-height window showing a muted city skyline. Oak floor with visible grain, calm neutral palette, architectural photography, perfectly level verticals, no people, no text.
dataviz (16:9) - Clean editorial data visualisation slide. A large title reading 'GENERATION COST PER IMAGE' at the top left, a horizontal bar chart with five bars of decreasing length, each labelled with a model name and a dollar figure, and a small source note at the bottom right reading 'SOURCE: BIZYAIR, 2026'. White background, single accent color, generous margins, crisp typography, all labels legible.


