Character System Model Eval

This is a taste test for a broader character system, not a single mascot style. The old cubie mech prompts are still here because they have the right DNA, but they are now only the first two rows in a wider cast.

The visible comparison uses Midjourney V8.1 HD, Nano Banana Pro, and GPT Image 2 on the same prompt for each row.

This is not a scientific benchmark. It is an art-direction eval: silhouette, charm, material detail, worldbuilding, prompt obedience, and whether the model can preserve a character instead of collapsing into generic AI mascot slop.

Display note: the source pipelines are not identical. Midjourney Alpha produced 2048×2048 images that were captured through the logged-in browser, while Nano Banana Pro and GPT Image 2 were downloaded from fal.ai outputs. For the visible page, every individual comparison image is normalized to the same 900×900 display asset so size does not bias the rows.

01. Chibi Mech Mascot

Style family: hyperreal 3D toy mech
Source phrase: hyperrealistic chibi mech calculating aurora themed

{{character-row:01}}

Prompt: Hyperrealistic chibi mech cubie character, compact astronaut toy body with a rounded cream helmet and purple glass face window, teal aurora reactor lights in the chest, tiny laptop and glowing calculation tiles on a frost-covered alien platform, distant aurora haze and soft snow particles, cute but intensely competent, polished 3D toy character render with old Midjourney v5.1 charm, square composition, no readable text, no logos.

02. Cubie Automaton Operator

Style family: space-renaissance pixel mech
Source phrase: automaton cute cubie space renaissance background 3d pixel

{{character-row:02}}

Prompt: Chibi mech cubie character, tiny engineer body with oversized copper helmet, violet visor eyes, magenta code sparks around the feet, working at a vast glowing calculation wall in a space-renaissance control room, layered circuit boards and luminous abacus tiles, cute but overpowered, painterly 3D pixel-mech style, cinematic teal and rose lighting, square composition, no readable text, no logos.

03. Human Cyber-Avatar

Style family: editorial anime-real 3D portrait

{{character-row:03}}

Prompt: Human cyber-avatar character, young operator with a compact athletic silhouette, cropped silver hair, warm brown skin, translucent teal visor glasses, matte black field jacket with chrome seams and tiny glowing tool capsules, one hand guiding a floating command halo made of abstract light blocks, standing inside a midnight browser observatory with star-map panes and cable constellations, calm but impossible to distract, editorial anime-real 3D portrait, cinematic rim light, square composition, no readable text, no logos.

04. Antagonist

Style family: luxury sci-fi villain concept art

{{character-row:04}}

Prompt: Antagonist character, tall elegant figure with a long obsidian coat, porcelain mask face with a single thin magenta eye slit, black glass shoulder armor, gloved hands holding a fractured crystal memory core, surrounded by broken automation charms and dim red interface shards in a cathedral-like server vault, beautiful but predatory, luxury sci-fi villain concept art, controlled spotlight and deep shadow, square composition, no readable text, no logos.

05. Mystic Operator

Style family: spell-tech fantasy concept art

{{character-row:05}}

Prompt: Spell-tech operator character, compact robed technomancer with a brass memory halo, layered indigo cloak panels embroidered with circuit-like patterns, amber visor eyes under a soft hood, tiny mechanical familiar-orbs arranging abstract command glyphs in the air, standing at a desk-scale arcane terminal made of copper keys and translucent crystal logic blocks, serene but computationally severe, fantasy concept art fused with tactile engineering, warm candlelight and cyan screen glow, square composition, no readable text, no logos.

06. Cute Nonhuman Mascot

Style family: soft vinyl plush mascot render

{{character-row:06}}

Prompt: Cute nonhuman mascot character, tiny star-plush body with rounded cubie proportions, soft silicone surface, stubby magnetic boots, oversized crescent visor smile, translucent belly chamber holding a glowing blue memory pearl, carrying miniature tool charms and orbiting button-sized helper satellites, perched on a desk-scale moon garden made of keycaps, friendly but secretly overpowered, premium soft vinyl plush render, pastel aurora lighting with sharp material detail, square composition, no readable text, no logos.

07. Fashion Editorial Character

Style family: high-fashion sci-fi editorial

{{character-row:07}}

Prompt: Fashion editorial character, androgynous runway figure with a statuesque silhouette, mirrored chrome bodice, translucent smoke-gray cape panels, tiny sapphire indicator lights along the collar, pearl-white face mask with soft cyan lens eyes, holding a thin glass tablet like a sacred accessory, walking through a black void studio filled with suspended metallic artifacts and pale projection beams, glamorous but machine-precise, high-fashion sci-fi editorial image, crisp flash photography mixed with surreal 3D styling, square composition, no readable text, no logos.

08. Game NPC Quest-Giver

Style family: stylized game character key art

{{character-row:08}}

Prompt: Game NPC quest-giver character, sturdy middle-aged spaceport quartermaster with a boxy silhouette, teal work vest over ceramic armor, orange utility scarf, short dark hair tucked under a scratched white cap, warm square goggles, belt full of tiny data cartridges and repair tools, holding a glowing map lantern beside a cargo dock built from keyboard blocks and cable bridges, welcoming but impossible to fool, stylized game character key art, colorful production design, square composition, no readable text, no logos.

09. Designer Vinyl Collectible

Style family: premium toy photography

{{character-row:09}}

Prompt: Designer vinyl collectible character, squat stackable idol silhouette made of three rounded modules, glossy cream vinyl body, copper inlay seams, cyan dot-matrix eyes, tiny magnetic arms holding a miniature server cube, transparent chest window with layered memory tiles, displayed on a matte black plinth in a tiny gallery diorama with scattered cable relics and colored resin crystals, toy-like but sacred, premium product-style toy photography, macro lens, softbox reflections, square composition, no readable text, no logos.

10. Anime Action Character

Style family: dynamic anime-mecha key art

{{character-row:10}}

Prompt: Anime action character, compact sprinting agent with a short armored jacket, cobalt hair, amber visor eyes, carbon-fiber shin guards, floating rail boots carving arcs of cyan light, one hand swinging a translucent debugging blade shaped like hard light, racing through a collapsing terminal canyon full of abstract data fragments and neon rails, joyful but devastatingly focused, dynamic anime-mecha key art, speed lines as light trails, square composition, no readable text, no logos.

11. Abstract AI Entity

Style family: surreal interface-being portrait

{{character-row:11}}

Prompt: Abstract AI entity character, floating translucent humanoid shell made of glass ribbons and nested browser-window shapes, gentle face implied by two warm light nodes and a narrow crescent mouth, luminous chest core like a folded star map, long ribbon arms arranging small artifact cubes in a dark studio void, surrounded by soft halos, tiny terminals, and drifting memory pearls, ancient but newly awake, surreal interface-being portrait, tactile glass and light sculpture, square composition, no readable text, no logos, avoid generic dashboard imagery.

12. Retro Pixel Game Character

Style family: 3D pixel sprite diorama

{{character-row:12}}

Prompt: Retro pixel game character, small blocky explorer with a square helmet, emerald pixel visor, tiny red cape, chunky boots, and a glowing compass cube, standing on a voxel world map made of circuit islands, keyboard cliffs, and luminous path tiles, holding a folded star chart rendered as abstract marks only, adventurous but meticulous, 3D pixel sprite diorama with modern lighting, playful game-ready silhouette, square composition, no readable text, no logos.

Model Setup

Midjourney outputs use V8.1 HD from Alpha. Nano Banana Pro uses fal-ai/nano-banana-pro with aspect_ratio: 1:1, resolution: 1K, and PNG output. GPT Image 2 uses openai/gpt-image-2 with square image size, high quality, and PNG output.

References