Is GPT Image 2.5 Sunburst better than Seedream 5.5?

In the BudgetPixel AI Image Arena, Seedream 5.5 beats GPT Image 2.5 Sunburst in 55% of 11 blind head-to-head votes on identical prompts (GPT Image 2.5 Sunburst 18%, ties 27%). The lead is narrow, so it could still change as votes come in. The per-prompt results on this page show where each model wins.

Which is faster, GPT Image 2.5 Sunburst or Seedream 5.5?

GPT Image 2.5 Sunburst is faster: 28.2s median per 1:1 image against 29.9s for Seedream 5.5, measured on the same 14 prompts at default settings in the BudgetPixel AI Image Arena.

Which is cheaper, GPT Image 2.5 Sunburst or Seedream 5.5?

GPT Image 2.5 Sunburst is cheaper on BudgetPixel: 40 credits ($0.040) per 1:1 image against 46 credits ($0.046) for Seedream 5.5, at default settings.

How is this comparison made?

Both models render the identical prompt at default settings; voters see the two images blind and pick the better one. Model names are revealed only after the vote.

GPT Image 2.5 Sunburst vs Seedream 5.5

14 identical prompts, default settings, blind community votes. Head-to-head: 18% preferred GPT Image 2.5 Sunburst, 55% preferred Seedream 5.5, 3 ties, 11 votes.

GPT Image 2.5 Sunburst and Seedream 5.5 have met in 11 blind head-to-head votes on 14 identical prompts in the BudgetPixel AI Image Arena. Seedream 5.5 was preferred in 55% of them and GPT Image 2.5 Sunburst in 18%, with 3 ties — a narrow lead that more votes could still overturn. GPT Image 2.5 Sunburst was faster, at 28.2s median per image against 29.9s for Seedream 5.5.

GPT Image 2.5 Sunburst overview GPT Image 2.5 Sunburst in the arena Try GPT Image 2.5 SunburstSeedream 5.5 overview Seedream 5.5 in the arena Try Seedream 5.5

GPT Image 2.5 Sunburst

Seedream 5.5

“At a riverside landing, exactly one orange kayak rests at the center, with one tall dark-green pine at the left frame edge and two short dark-green pines at the right; a blue paddle lies across its bow, nothing else.”Prompt adherence
GPT Image 2.5 Sunburst · 20.1s · 40 crTry
Seedream 5.5 · 29.9s · 41 crTry
“Fog lifts around a pedestrian suspension bridge in contemporary Nordic engineering style, its weathering-steel cables anchored to granite pylons above a cedar-plank deck; cool sunrise light, viewed obliquely from the riverbank, reveals taut lines and credible supports.”Architecture & interiors
GPT Image 2.5 Sunburst · 26.1s · 40 crTry
Seedream 5.5 · 26.7s · 41 crTry
“A phantom owl, ethereal and translucent, composed of moonlight and mist, silently gliding through a spectral, enchanted forest. Ancient trees with glowing, spectral eyes watch its passage, and a faint, otherworldly mist shrouds the path. The subject is a mythical creature in its natural, haunting habitat. The style blends surrealism and gothic fantasy.”Concept art & fantasy
GPT Image 2.5 Sunburst · 28.1s · 40 crTry
Seedream 5.5 · 23.5s · 41 crTry
“A beautiful adult woman sitting on a stool in a modern brutalist-style kitchen, wearing black frills. She has long red hair and is calmly smoking a cigarette. Art rendered in a sophisticated scribbled ink sketch with watercolor and colored pencil rendering. Chiaroscuro effect. Architectural interior sketch with remnants of guideline sketches. She is resting while drinking a glass of whiskey.”Illustration & anime
GPT Image 2.5 Sunburst · 30.3s · 40 crTry
Seedream 5.5 · 24.3s · 41 crTry
“Wind combs the pale ridges of a dune sea beneath a cloudless starfield on a breezy night near midnight; fine ripple marks texture the nearest slope, while dune crests recede in overlapping bands.”Landscape & nature
GPT Image 2.5 Sunburst · 28.0s · 40 crTry
Seedream 5.5 · 30.0s · 41 crTry
“Realistic: an overweight man in his 30s or 40s, balding, with his hands spread out and an excited expression, in Japan. The man is a super anime and Japanese culture nerd. He is wearing a shirt that says “I ♥ JAPAN,” with a big red heart between “I” and “JAPAN.” His excitement attracts a crowd of adults who look at him curiously, with a subtle look in their eyes as if asking, “You okay, man?” The vibe is of a man totally out of place, but at the same time, good for him...”Photorealism
GPT Image 2.5 Sunburst · 64.1s · 40 crTry
Seedream 5.5 · 24.1s · 41 crTry
“Stylized semi-realistic digital character painting, expressive animation-inspired facial proportions, large eyes and strong brows, simplified natural anatomy with convincing three-dimensional volume. Painterly shape-based rendering, minimal linework, soft blended facial shading contrasted with broad angular brushstrokes on clothing. Warm luminous skin with peach and terracotta undertones, subtle rosy cheeks and nose, restrained highlights. Hair rendered as flowing sculpted masses with broad highlights and a few fine flyaway strands. Muted charcoal and earthy neutral palette, soft directional studio lighting, carefully rendered eyes and lips, selectively loose edges and unfinished brushwork. A goth woman stands against a gritty wall, one boot sole against the wall, one hand on her thigh, her other hand against the wall. She has long hair mingling black and pink, metal jewelry, many tattoos, black chunky sneakers, black shorts, black crop top, dramatic makeup. Looks at viewer, grins.”Portrait & fashion
GPT Image 2.5 Sunburst · 26.2s · 40 crTry
Seedream 5.5 · 33.3s · 41 crTry
“Cool rim light traces the brushed titanium case of an unbranded wristwatch, its blank charcoal dial under sapphire crystal; the watch rests on black slate against a deep forest-green background, with a softbox key and gentle fill for a commercial product image, no lettering.”Product & commercial
GPT Image 2.5 Sunburst · 36.2s · 40 crTry
Seedream 5.5 · 23.3s · 41 crTry
“Folded beneath a seashell on a cabin windowsill, a cream note bears "TIDEMEADOW REST" in small, slanted blue-ink handwriting, its softly uneven letters crossing the paper’s center; rain beads sparkle on the glass.”Typography
GPT Image 2.5 Sunburst · 28.2s · 40 crTry
Seedream 5.5 · 34.1s · 41 crTry
“Under a pale dawn sky, exactly three foxes sit facing forward in a row: a russet fox at left, a charcoal fox in the center, and a cream fox at right; nothing else.”Prompt adherence
GPT Image 2.5 Sunburst · 30.8s · 40 crTry
Seedream 5.5 · 36.2s · 41 crTry
“Cyberpunk wallpaper, techno wallpaper with multiple colors of neon lights. Buildings and circuits.”Concept art & fantasy
GPT Image 2.5 Sunburst · 28.1s · 40 crTry
Seedream 5.5 · 43.0s · 41 crTry
“On a storm-battered headland, a weathered lighthouse sends its amber beam across foaming waves and wheeling seabirds. Gouache illustration with a vintage travel-poster feel, ridged bristle marks, and a vermilion, cream, and deep-navy palette.”Illustration & anime
GPT Image 2.5 Sunburst · 39.9s · 40 crTry
Seedream 5.5 · 43.3s · 41 crTry
“A macro still photograph of an extraordinary, mythical creature constructed entirely from layered, realistic autumn leaves. The creature is posed gracefully on a moss-covered fallen log deep within a serene, misty forest floor during early morning. Its entire form is seamlessly sculpted from diverse foliage: its body and back are layered with overlapping, crisp scarlet maple leaves, its slender legs are formed from slender, serrated golden birch leaves, and its elegant, curved tail is crafted from a single, elongated amber fern frond. The creature features expressive, glossy black obsidian stone eyes that capture sharp, detailed reflections of the surrounding trees. Every individual leaf shows immaculate, crisp physical textures—from the microscopic, branching network of translucent veins catching the soft morning sun to the weathered, curling edges and tiny dew droplets resting on the surfaces. The background is a soft-focus.”Photorealism
GPT Image 2.5 Sunburst · 24.4s · 40 crTry
Seedream 5.5 · 20.3s · 41 crTry
“STYLE: Stylized semi-realistic digital character painting, expressive animation-inspired facial proportions, large eyes and strong brows, simplified natural anatomy with convincing three-dimensional volume. Painterly shape-based rendering, minimal linework, soft blended facial shading contrasted with broad angular brushstrokes on clothing. Warm luminous skin with peach and terracotta undertones, subtle rosy cheeks and nose, restrained highlights. Hair rendered as flowing sculpted masses with broad highlights and a few fine flyaway strands. Muted charcoal and earthy neutral palette, soft directional studio lighting, carefully rendered eyes and lips, selectively loose edges and unfinished brushwork. Make a model sheet for a character, showing her full length in a few different angles, poses, and expressions, plus one closeup. 25-year-old woman, tattoos, ripped skinny jeans, tank top, dark green undercut, multiple necklaces and earrings, dark brown lipstick”Illustration & anime
GPT Image 2.5 Sunburst · 42.8s · 40 crTry
Seedream 5.5 · 33.6s · 41 crTry

From the BudgetPixel blog

FAQ

Is GPT Image 2.5 Sunburst better than Seedream 5.5?: In the BudgetPixel AI Image Arena, Seedream 5.5 beats GPT Image 2.5 Sunburst in 55% of 11 blind head-to-head votes on identical prompts (GPT Image 2.5 Sunburst 18%, ties 27%). The lead is narrow, so it could still change as votes come in. The per-prompt results on this page show where each model wins.
Which is faster, GPT Image 2.5 Sunburst or Seedream 5.5?: GPT Image 2.5 Sunburst is faster: 28.2s median per 1:1 image against 29.9s for Seedream 5.5, measured on the same 14 prompts at default settings in the BudgetPixel AI Image Arena.
Which is cheaper, GPT Image 2.5 Sunburst or Seedream 5.5?: GPT Image 2.5 Sunburst is cheaper on BudgetPixel: 40 credits ($0.040) per 1:1 image against 46 credits ($0.046) for Seedream 5.5, at default settings.
How is this comparison made?: Both models render the identical prompt at default settings; voters see the two images blind and pick the better one. Model names are revealed only after the vote.