Is GPT Image 2.5 Sunburst better than Nano Banana 2.1?

Too close to call so far: in the BudgetPixel AI Image Arena, GPT Image 2.5 Sunburst wins 44% and Nano Banana 2.1 44% of 16 blind head-to-head votes (ties 13%), within what chance alone would produce. The per-prompt results on this page show where each model wins.

Which is faster, GPT Image 2.5 Sunburst or Nano Banana 2.1?

Nano Banana 2.1 is faster: 10.9s median per 1:1 image against 53.5s for GPT Image 2.5 Sunburst, measured on the same 12 prompts at default settings in the BudgetPixel AI Image Arena.

Which is cheaper, GPT Image 2.5 Sunburst or Nano Banana 2.1?

GPT Image 2.5 Sunburst is cheaper on BudgetPixel: 40 credits ($0.040) per 1:1 image against 45 credits ($0.045) for Nano Banana 2.1, 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 Nano Banana 2.1

12 identical prompts, default settings, blind community votes. Head-to-head: 44% preferred GPT Image 2.5 Sunburst, 44% preferred Nano Banana 2.1, 2 ties, 16 votes.

GPT Image 2.5 Sunburst and Nano Banana 2.1 have met in 16 blind head-to-head votes on 12 identical prompts in the BudgetPixel AI Image Arena. The votes are too close to call so far: GPT Image 2.5 Sunburst 44%, Nano Banana 2.1 44%, 2 ties. Nano Banana 2.1 was faster, at 10.9s median per image against 53.5s for GPT Image 2.5 Sunburst.

GPT Image 2.5 Sunburst overview GPT Image 2.5 Sunburst in the arena Try GPT Image 2.5 SunburstNano Banana 2.1 overview Nano Banana 2.1 in the arena Try Nano Banana 2.1

GPT Image 2.5 Sunburst

Nano Banana 2.1

“Exactly six folded paper boats sit on a pale blue tabletop: two red boats on the left, two yellow boats in the center, and two green boats on the right. A small white lighthouse figurine stands behind the center pair, nothing else.”Prompt adherence
GPT Image 2.5 Sunburst · 39.5s · 40 crTry
Nano Banana 2.1 · 9.3s · 40 crTry
“Adult women wearing masks (the kind you wear when you have a cold), in a warehouse, all wearing the kinds of outfits you would see models wear on a runway, counting lots of money (money is seen everywhere, on tables, on the floor, etc.). At least 4 different POVs.”Prompt adherence
GPT Image 2.5 Sunburst · 51.2s · 40 crTry
Nano Banana 2.1 · 11.7s · 40 crTry
“An abstract tapestry woven from the dreams of a sleeping dragon, depicted as a chaotic yet beautiful explosion of iridescent scales, fiery embers, and swirling smoke. The composition is dynamic and energetic, with bold brushstrokes and a rich, textured surface. The style is abstract expressionism, capturing the raw, untamed essence of draconic power.”Concept art & fantasy
GPT Image 2.5 Sunburst · 60.0s · 40 crTry
Nano Banana 2.1 · 10.9s · 40 crTry
“A colossal ring-shaped dam bridges a volcanic caldera, its black stone spillways veined with molten light. Rain veils the terraces as steam rises into a bruised dusk sky.”Concept art & fantasy
GPT Image 2.5 Sunburst · 96.2s · 40 crTry
Nano Banana 2.1 · 9.7s · 40 crTry
“An alien restaurant on a strange planet. The interior is well lit, but the décor is very strange and out of this world. Alien waitresses are bringing in platters of food. Alien diners are eating very unusual dishes.”Concept art & fantasy
GPT Image 2.5 Sunburst · 43.0s · 40 crTry
Nano Banana 2.1 · 10.7s · 40 crTry
“A solitary wolf, its fur subtly infused with shimmering, bio-luminescent patterns, howling at a sky filled with twin moons. The wolf stands on a cliff overlooking a vast, alien landscape dotted with strange, glowing rock formations and spectral, phosphorescent vegetation.”Concept art & fantasy
GPT Image 2.5 Sunburst · 104.7s · 40 crTry
Nano Banana 2.1 · 11.6s · 40 crTry
“A cathedral-sized mothlike creature glides above a frozen ravine, its translucent wings veined with amber light and fringed with frost. Tiny mountain pines cling to the cliffs as aurora colors ripple across the snow.”Concept art & fantasy
GPT Image 2.5 Sunburst · 36.2s · 40 crTry
Nano Banana 2.1 · 10.9s · 40 crTry
“Anime-style illustration of an adult young woman confidently balancing on the broad back of a massive humpback whale as it swims across the open ocean. She wears a stylish two-piece bikini appropriate for a sunny tropical setting, with wet hair and subtle water droplets catching the light. One hand grips a sturdy tether secured near the whale's dorsal area, using it to maintain her balance as the whale moves through the waves, while her other arm extends naturally for stability. The whale is enormous and majestic, its dark blue-gray skin covered in realistic texture, scars, and subtle highlights. Its powerful body breaks partially above the rolling ocean surface, creating a sweeping trail of white foam and spray behind it. The woman looks exhilarated and joyful, her expression conveying adventure and freedom rather than fear. Vast open sea stretches toward the horizon beneath a brilliant blue sky with scattered white clouds. Sunlight sparkles across the water”Illustration & anime · 1 votes: 100% / 0%
GPT Image 2.5 Sunburst · 55.9s · 40 crTry
Nano Banana 2.1 · 12.0s · 40 crTry
“Candid documentary photograph of an adult waiting beside a city bus shelter at dawn, sodium streetlights fading into cool blue daylight, 50mm lens with shallow depth of field, fine rain droplets clinging to the shelter glass.”Photorealism
GPT Image 2.5 Sunburst · 45.1s · 40 crTry
Nano Banana 2.1 · 10.4s · 40 crTry
“A young beautiful woman of Chinese descent, she is twenty years old, sitting in a bedroom, sitting on the edge of her bed. She is wearing a black anime-themed shirt and denim shorts. She has dark brown hair with light blue highlights, brown eyes, pale skin. Her bedroom has anime- and video game-inspired posters and trinkets. Looking at the viewer, smiling.”Portrait & fashion
GPT Image 2.5 Sunburst · 41.0s · 40 crTry
Nano Banana 2.1 · 12.8s · 40 crTry
“Realistic. Four to five adults having a very lucky day. One of the people is a clown with a very strange cat on their head. Another is wearing a black crop top and multicolored shorts. The word “Lucky” is seen at least twice in the background.”Typography
GPT Image 2.5 Sunburst · 84.3s · 40 crTry
Nano Banana 2.1 · 11.9s · 40 crTry
“Within a quiet mineral gallery, amethyst clusters and polished geodes catch pools of light; "PALE ATLAS" is carved in clean capitals across a slate plaque beside the entrance.”Typography
GPT Image 2.5 Sunburst · 75.2s · 40 crTry
Nano Banana 2.1 · 9.8s · 40 crTry

FAQ

Is GPT Image 2.5 Sunburst better than Nano Banana 2.1?: Too close to call so far: in the BudgetPixel AI Image Arena, GPT Image 2.5 Sunburst wins 44% and Nano Banana 2.1 44% of 16 blind head-to-head votes (ties 13%), within what chance alone would produce. The per-prompt results on this page show where each model wins.
Which is faster, GPT Image 2.5 Sunburst or Nano Banana 2.1?: Nano Banana 2.1 is faster: 10.9s median per 1:1 image against 53.5s for GPT Image 2.5 Sunburst, measured on the same 12 prompts at default settings in the BudgetPixel AI Image Arena.
Which is cheaper, GPT Image 2.5 Sunburst or Nano Banana 2.1?: GPT Image 2.5 Sunburst is cheaper on BudgetPixel: 40 credits ($0.040) per 1:1 image against 45 credits ($0.045) for Nano Banana 2.1, 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.