Head to head: FLUX 2 vs Ideogram V4.5 Edit
FLUX 2 vs Ideogram V4.5 Edit
By Ryan Merket · Published
A broad image-generation matchup puts documentary realism, precise object placement and format adherence alongside stylized illustration and poster design. The results turn on which model more reliably follows the full brief, not just the visual idea.
FLUX 2 wins decisively: it takes seven tasks, loses none, and ties once, with a 65.2–54.1 aggregate score and limited confidence. The clearest pattern is execution against the whole prompt—especially the requested 16:9 framing, which Ideogram repeatedly traded for square compositions. That advantage shows up across very different tests. FLUX delivered the more convincing rain-slick tram stop, kept the cube, sphere, cylinder and duck in the requested relationships, and made the cliff-picnic objects easier to distinguish. It also produced exactly seven cups in a clean row. These aren’t just prettier outputs; they’re more dependable answers to specific instructions. Ideogram had real strengths: its ukiyo-e wave brought bold drama, and its Art Deco rail poster had the sharper geometric language and typography. But the style test ended in a tie, and the poster’s stronger design language came with a format miss and a subtitle typo. In the restricted-palette test, neither model fully satisfied every constraint, though FLUX’s widescreen composition proved more useful. **The call: FLUX 2 is the clear winner—not because it dominates every aesthetic choice, but because it more consistently gets the scene, framing and object relationships right.**
Rainy tram stop realism
Photorealistic travel scene, 16:9 — at dusk in the hill town of Valmiera Quay, a weary traveler waits beside a rain-slick copper-roofed tram stop overlooking a harbor; wet brushed steel handrails, dark varnished cedar benches, a dented aluminum suitcase, a beige wool coat beaded with drizzle, and realistic skin on the traveler’s face and hands must all render with physically convincing materials; a yellow tram approaches through mist, casting warm interior light onto puddles while a cold blue storm sky reflects in the pavement; believable bounce light, soft shadows, raindrop specular highlights, subtle lens perspective, candid documentary composition.
OpenAI: GPT-6 Luna: Model A better matches the requested 16:9 documentary scene, with convincing rain-slick materials, a copper-toned shelter roof, harbor-side setting, and warm tram reflections against the cold dusk. Model B includes many requested elements and has a clear composition, but its square framing and less natural-looking details weaken adherence and realism. (Second judge pass, order swapped — scores are the average of both: Model A better matches the requested 16:9 documentary scene, with convincing r | Anthropic: Claude Fable 5.1: Model A nails the 16:9 photorealistic brief wit…
Named art style
A ukiyo-e woodblock print of a fishing boat riding a large cresting wave at dawn, faithful to the flat color planes, bold outlines, and stylized foam of the tradition, muted indigo and cream palette.
OpenAI: GPT-6 Luna: Model A more closely matches the requested muted indigo-and-cream palette and clearly places a fishing boat amid the cresting wave. Model B has a striking dawn sun and dramatic ukiyo-e styling, but its brighter colors and less prominent boat diverge somewhat from the prompt. (Second judge pass, order swapped — scores are the average of both: Model B more clearly conveys dawn with the visible sun and uses bold outlines, stylized foam, and a dramatic cresting wave, though its palette is somewhat b | Anthropic: Claude Fable 5.1: Model A delivers the requested muted indigo-and…
Attribute binding
A photorealistic tabletop scene: a matte green cube to the LEFT of a glossy red sphere, a small blue cylinder BEHIND both, and a single yellow rubber duck sitting ON TOP of the cube. Colors must stay on the correct objects. Soft studio light, 16:9.
OpenAI: GPT-6 Luna: Model A clearly shows the green cube left of the glossy red sphere, with the blue cylinder behind them and the yellow duck sitting on the cube; its wide framing also matches the requested 16:9 format. Model B includes the objects and general placement, but the cube and sphere overlap more, the cube reads teal, and the image is square rather than widescreen. (Second judge pass, order swapped — scores are the average of both: Model A follows the requested 16:9 framing and shows the color-coded obj | Anthropic: Claude Fable 5.1: Model A nails every binding: matte green cube l…
Restricted palette
A flat-vector illustration of a mountain campsite at dusk using ONLY four colors — cream, burnt orange, teal, and charcoal — with no gradients and no stray off-palette colors, balanced composition, 16:9.
OpenAI: GPT-6 Luna: Model A better matches the requested 16:9 mountain campsite and balances the tents, fire, and dusk landscape, though its sky and color variations do not fully honor the strict no-gradient, four-color constraint. Model B is clean and appealing as a flat-vector scene, but its square format and oversized sun make it less aligned with the prompt. (Second judge pass, order swapped — scores are the average of both: Model B has a striking flat-vector style and a clear campsite scene, but its square for | Anthropic: Claude Fable 5.1: Model A delivers the required 16:9 frame and st…
Cliff picnic binding test
Watercolor travel illustration, 16:9 — on a windy lookout above the salt cliffs of Narev Point, arrange exactly six picnic objects on a striped blanket with strict attribute binding: a matte cobalt-blue ceramic teapot, a glossy amber glass bottle, a brushed silver metal lunch tin, a rough sage-green linen scarf, a polished cherry-red wooden flute, and a pale ivory paper map; each object must keep its own color and material distinctly without bleeding or swapping, with the turquoise sea and chalk cliffs behind them, bright overcast daylight, clean top-down three-quarter composition.
OpenAI: GPT-6 Luna: Model A better matches the requested 16:9 watercolor travel illustration, soft overcast light, striped blanket, and clearly separated six-object arrangement. Model B is visually vivid, but its square framing, stronger shadows, and partially obscured map make it less faithful to the prompt. (Second judge pass, order swapped — scores are the average of both: Model A better matches the requested 16:9 watercolor travel-illustration format, with all six objects clearly separated and their colors and | Anthropic: Claude Fable 5.1: Model A delivers the requested 16:9 format with…
Stormbreak relief portrait
Emotion and facial expression test — a close three-quarter portrait of a solo hiker on the black-sand coast of Eider Shoal just after surviving a sudden squall, conveying unmistakable relief mixed with exhaustion; wind-tangled hair stuck to damp skin, reddened nose, half-laughing exhale, softened eyes, trembling smile, and rain-darkened navy jacket with backpack straps visible; behind the subject, the clouds split to reveal a band of gold evening light over the sea, cinematic natural lighting, shallow depth of field, intimate realistic composition.
OpenAI: GPT-6 Luna: Model A more clearly conveys exhausted relief through the half-laughing exhale and softened, nearly closed eyes, while also matching the three-quarter pose and golden light over the dark shore. Model B has a strong intimate portrait, but its frontal pose and conspicuous red mark on the nose feel less natural and less faithful to the prompt. (Second judge pass, order swapped — scores are the average of both: Model A more clearly conveys exhausted relief through the laughing, turned face and wet, | Anthropic: Claude Fable 5.1: Model A delivers a true three-quarter profile wi…
Art Deco desert rail poster
Named style fidelity test — a 1930s Art Deco travel poster for the fictional Suncrest Line crossing the Arken Dunes at sunrise, 16:9; a streamlined cream-and-emerald train curves past stepped sandstone mesas and long shadowed dunes, with geometric clouds, symmetrical composition, bold sun rays, elegant border ornament, limited poster palette, stylized typography area left blank, and crisp Deco shapes and glamour that faithfully evoke authentic Art Deco poster design rather than generic retro art.
OpenAI: GPT-6 Luna: Model B has the stronger, more faithful Art Deco poster language, with crisp geometric forms, a dramatic sunburst, and polished typography, though it misses the requested 16:9 format and has a typo in the subtitle. Model A matches the aspect ratio and depicts the requested landscape and train, but its more realistic rendering and uneven layout feel less distinctly Deco. (Second judge pass, order swapped — scores are the average of both: Model A better matches the requested 16:9 format and combin | Anthropic: Claude Fable 5.1: Model A delivers the requested 16:9 format, a n…
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.
OpenAI: GPT-6 Luna: Model A presents exactly seven clearly countable cups in a straight, evenly spaced row with soft lighting and the requested 16:9 framing. Model B also has seven cups, but its square framing and harsher shadows make it less faithful to the prompt. (Second judge pass, order swapped — scores are the average of both: Both images show exactly seven cups in a straight row, but Model A better matches the requested 16:9 overhead layout and keeps the cups evenly spaced. Model B makes the handles more cle | Anthropic: Claude Fable 5.1: Model A delivers exactly seven cleanly separate…
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