FLUX.1.1 [pro] Ultra
FLUX.1.1 [pro] Ultra is a high resolution text to image model from Black Forest Labs. It generates images up to 4 megapixels in about 10 seconds. Ultra mode targets sharp outputs. Raw mode targets natural photographic style. Built for API integration in real products.
Complete technical specification for integration
Ready-to-use code snippets for common workflows
Wind-Carved Ice Harbor
A vast polar harbor carved into layered blue ice, with towering cranes built from weathered timber and black steel, small cargo sleds gliding across frozen channels, bundled workers guiding shaggy draft animals, banners snapping in fierce wind, fractured ice reflecting pale sunrise, distant steam from boilers drifting into the cold air, gulls circling above, intricate frost textures, natural documentary-style photography, ultra-detailed surfaces, realistic scale, sharp focus, dramatic atmosphere, expansive composition, authentic color, no text, no watermark
{
"taskType": "imageInference",
"taskUUID": "17a2b204-94c7-4ae5-8c2d-369f6ed0eab6",
"model": "bfl:2@2",
"positivePrompt": "A vast polar harbor carved into layered blue ice, with towering cranes built from weathered timber and black steel, small cargo sleds gliding across frozen channels, bundled workers guiding shaggy draft animals, banners snapping in fierce wind, fractured ice reflecting pale sunrise, distant steam from boilers drifting into the cold air, gulls circling above, intricate frost textures, natural documentary-style photography, ultra-detailed surfaces, realistic scale, sharp focus, dramatic atmosphere, expansive composition, authentic color, no text, no watermark",
"width": 2752,
"height": 1536,
"seed": 33403,
"providerSettings": {
"bfl": {
"raw": true,
"promptUpsampling": true,
"safetyTolerance": 2
}
}
}{
"taskType": "imageInference",
"taskUUID": "17a2b204-94c7-4ae5-8c2d-369f6ed0eab6",
"imageUUID": "2337f8e5-5950-4428-99a0-746875c9c043",
"imageURL": "https://im.runware.ai/image/os/a19d05/ws/3/ii/2337f8e5-5950-4428-99a0-746875c9c043.jpg",
"seed": 33403,
"cost": 0.06
}Volcanic Glass Violinist Procession
A towering ceremonial avenue carved through black volcanic stone, viewed in a vertical composition. At the center, an androgynous violinist in layered ash-gray robes performs while walking through a solemn procession of masked artisans carrying polished glass standards that catch fiery reflections. The violin itself is made of translucent obsidian and amber, glowing from trapped heat. Fine cinders drift through the air. In the distance, stepped basalt arches frame a glowing magma river, while suspended copper chimes and braided banners create depth overhead. Hyper-detailed textures: cracked stone, reflective glass, singed fabric edges, heat haze, metallic filigree, expressive faces beneath elegant masks. Dramatic cinematic lighting from lava and overcast smoke, rich contrast, precise anatomy, crisp micro-detail, epic scale, atmospheric perspective, premium editorial fantasy photography aesthetic.
{
"taskType": "imageInference",
"taskUUID": "dd08ddc3-a4ff-464a-b8b9-58f1e83733a3",
"model": "bfl:2@2",
"positivePrompt": "A towering ceremonial avenue carved through black volcanic stone, viewed in a vertical composition. At the center, an androgynous violinist in layered ash-gray robes performs while walking through a solemn procession of masked artisans carrying polished glass standards that catch fiery reflections. The violin itself is made of translucent obsidian and amber, glowing from trapped heat. Fine cinders drift through the air. In the distance, stepped basalt arches frame a glowing magma river, while suspended copper chimes and braided banners create depth overhead. Hyper-detailed textures: cracked stone, reflective glass, singed fabric edges, heat haze, metallic filigree, expressive faces beneath elegant masks. Dramatic cinematic lighting from lava and overcast smoke, rich contrast, precise anatomy, crisp micro-detail, epic scale, atmospheric perspective, premium editorial fantasy photography aesthetic.",
"width": 1344,
"height": 3136,
"seed": 48093,
"providerSettings": {
"bfl": {
"promptUpsampling": true,
"safetyTolerance": 2,
"raw": false
}
}
}{
"taskType": "imageInference",
"taskUUID": "dd08ddc3-a4ff-464a-b8b9-58f1e83733a3",
"imageUUID": "2a1f70ac-2743-42b6-9c54-e629bd39639d",
"imageURL": "https://im.runware.ai/image/os/a07d11/ws/3/ii/2a1f70ac-2743-42b6-9c54-e629bd39639d.jpg",
"seed": 48093,
"cost": 0.06
}Glasshouse Archive Under Aurora
A towering abandoned glasshouse transformed into a vertical archive of living plants and suspended manuscripts, rising through a remote polar valley beneath sweeping aurora bands. Fractured iron ribs, fogged panes, hanging ladders, spiral stair fragments, ivy-wrapped catalog plaques, shelves of weathered field journals sealed in glass capsules, rare alpine flowers blooming from cracked masonry, tiny warm lanterns placed along narrow catwalks, a shallow reflective pool at the base with scattered petals and fallen paper tags. Two small human figures in heavy expedition coats study the structure from below for scale. Hyper-detailed textures, intricate botanical variety, luminous sky gradients of emerald, violet, and pale gold, cinematic depth, razor-sharp architectural lines, elegant symmetry with organic overgrowth, majestic vertical composition, high realism with a slightly dreamlike fine-art sensibility.
{
"taskType": "imageInference",
"taskUUID": "6b14e961-adba-4065-9c13-255a428b752b",
"model": "bfl:2@2",
"positivePrompt": "A towering abandoned glasshouse transformed into a vertical archive of living plants and suspended manuscripts, rising through a remote polar valley beneath sweeping aurora bands. Fractured iron ribs, fogged panes, hanging ladders, spiral stair fragments, ivy-wrapped catalog plaques, shelves of weathered field journals sealed in glass capsules, rare alpine flowers blooming from cracked masonry, tiny warm lanterns placed along narrow catwalks, a shallow reflective pool at the base with scattered petals and fallen paper tags. Two small human figures in heavy expedition coats study the structure from below for scale. Hyper-detailed textures, intricate botanical variety, luminous sky gradients of emerald, violet, and pale gold, cinematic depth, razor-sharp architectural lines, elegant symmetry with organic overgrowth, majestic vertical composition, high realism with a slightly dreamlike fine-art sensibility.",
"width": 1344,
"height": 3136,
"seed": 70408,
"providerSettings": {
"bfl": {
"promptUpsampling": true,
"raw": false,
"safetyTolerance": 2
}
}
}{
"taskType": "imageInference",
"taskUUID": "6b14e961-adba-4065-9c13-255a428b752b",
"imageUUID": "4b301cc1-47c5-4b1d-b700-b4e0e88bd248",
"imageURL": "https://im.runware.ai/image/os/a08d21/ws/3/ii/4b301cc1-47c5-4b1d-b700-b4e0e88bd248.jpg",
"seed": 70408,
"cost": 0.06
}