SDXL

Aeterna Opus

Aeterna Opus - AI Model cover image
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Jun 29, 2026, 8:16 AM
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Description

Aeterna Opus is a 'random bullshit go' philosophy, flat, high-fidelity anime-themed text-to-image generative model and the latest installment in the series. Built on a structurally sound custom foundation, the model bridges the gap between painterly artistic depth and rigorous character alignment frameworks. The underlying backbone merges the atmospheric lighting of Ars Divina 7.2.4a with the anatomical precision of Indominus Rex XL. Rather than relying on standard fine-tuning, the merged weights underwent continuous, multi-epoch cyclical re-training, constantly rotating optimization passes between OnomaAI’s s1k_Korean dataset for natural language layout logic and CagliostroLab’s 1.2M Ordered Tags for strict Danbooru token compliance. These enhancements make Aeterna Opus highly adaptive, delivering exceptional structural stability and dual-format prompt adherence while maintaining a signature, illustrative edge.Model DetailsDeveloped by: NeverWinter13Model type: Diffusion-based text-to-image generative modelLicense: CreativeML Open RAIL++-MCore Base: SDXL Architecture (Ars Divina v7.2.4a x Indominus Rex XL Backbone)Training Methodology: Cyclical continuous pre-trainingPrimary Focus: High-tier illustration, dynamic character staging, advanced multi-concept prompt adherence, and extreme structural stability.🎨 Generation Guidelines & RecommendationsThanks to the Indominus Rex and Ars Divina DNA mixed with Cagliostro/Onoma training cycles, this model responds masterfully to both highly descriptive natural language and structured Danbooru tags.Generation Guidelines & RecommendationsThanks to the Indominus Rex and Ars Divina DNA mixed with Cagliostro/Onoma training cycles, this model responds masterfully to both highly descriptive natural language and structured Danbooru tags.Prompting GuideYou can utilize standard descriptive natural language sentences or structured tags. For optimal character styling inspired by CagliostroLab's standards, structure your tags as follows:1girl/1boy, character name [series name], [your prompt]Quality TagsAdd these tags at the start of your prompt:Positive Prompt 1:masterpiece, best quality, newestPositive Prompt 2:masterpiece, best quality, amazing quality, newestNegativesYou can utilize these negative embeddings or prompts or tags:Negative Prompt 1:bad quality, worst quality, lowres, jpeg artifacts, bad anatomy, bad hands, multiple views, signature, watermark, censored, sketch, flat color, ugly, fat, blurry eyes, wrinkled skinNegative Prompt 2:(lowres:1.2), (worst quality:1.4), (low quality:1.4), (bad anatomy:1.4), bad hands, multiple views, comic, jpeg artifacts, patreon logo, patreon username, web address, signature, watermark, text, logo, artist name, censoredRecommended Inference SettingsSampling Steps: 26 - 30 stepsSampler: Euler aCFG Scale: 3.0 - 6.5Hires.fix is not necessary (Per my case)ADetailer is highly recommendedRecommended ResolutionsSquare: 1024 x 1024Landscape/Panorama: 1152 x 896 / 1216 x 832 / 1344 x 768 / 1536 x 640Portrait: 896 x 1152 / 832 x 1216 / 768 x 1344 / 640 x 1536💖 Acknowledgments & ThanksThis project would not have been possible without the groundbreaking work, innovative contributions, and comprehensive documentation provided by Stability AI, Novel AI, and the entire generative AI community.I am especially grateful for those who were with me from the beginning, starting from the Stable Diffusion 1.5 days up through Illustrious-XL, fueling my interest in generative text-to-image models. Particularly:My Significant OtherOnomaAIResearchCagliostro Labsnukeai1106GoofyAIRaelinaDaoOwOartsKohya_ssSeaArt AIPixAIMoescape AICivitaiThank you. Aeterna Opus is a reflection of this 'random bullshit go' philosophy.

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Artwork made by Aeterna Opus

1
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
A vibrant, highly detailed digital illustration rendered in a bold, colorful felt pen style, featuring a cheerful young woman winking playfully as she licks a large double-scoop ice cream cone with pink and mint chocolate chip flavors. She has a sun-kissed complexion with freckles, and her blonde hair is styled in a messy high ponytail. She wears a light purple tied crop top, gold necklaces, hoop earrings, and a stack of colorful woven bracelets. The warm, sunlit background depicts a charming, colorful sweet shop counter with large glass jars filled with pastel candies on the left and a fresh bouquet of daisies and pink flowers on the right, perfectly capturing a joyful, glowing, and stylized summer aesthetic. ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) (noon, day time:1.5) BREAK, (simple:2)(deformed:1.6),(colored thin lines, colored sharp lines, delicate lines:1.6), (sound effect text integrated in scene, stylized onomatopoeia:1.6) french braid, hair over one eye, eyes visible through hair, thighhighs, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,<oldman>, oldman,<alpacako_xl>, alpacako, red ribbon, long hair, hoof, fur, bag, Urban_Sketching_Style, still life.,<lora:LCMTurboMix2fix:1>, , deformed person , ,<p4k4k0fr1end> , rabbit-eared girl, rounded rabbit ears, non-pointed ear tips, amber eyes, very abundant hair, layered hair, braided details, shy demeanor, reserved expression, blush
picko
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
partially hidden behind rain-soaked green leaves outside a quiet neighborhood., making them softly blur the foreground while tiny droplets hang from every leaf edge. . The atmosphere feels forgotten, peaceful and nostalgic.The image shows a woman wearing a white dress , with a building in the background. The painting is a high-definition depicting the woman in a fantasy setting. 1girl, solo, looking at viewer, shirt, long sleeves, closed mouth, hair between eyes, jewelry, jacket, white shirt, green eyes, upper body, collarbone, white hair, earrings, weapon, open clothes, black jacket, open jacket, bag, fingernails, backpack, see-through shirt, long hair,  alpaca ears, (long hair :1.8) ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) BREAK, muted color, minimum colors, anime coloring, (flat color) , solo, blue eyes, thighhighs, holding, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, (depth of field), <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,alpacako_xl>, alpacako, red ribbon, long hair, bag,Urban_Sketching_Style, still life.,whimsical storybook illustration, dense brown-gray ink linework, layered watercolor wash, intricate tiny details, (normal color palette, turquoise blue color and green color accents), lively cluttered composition,fantasy art, botanical, flowers, watercolor (medium), muted color,
picko
1
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
((very strong (Urban_Sketching_Style,:2))),An adorable alpaca girl(solo, ) with sparkling brown eyes , wind-blown hair walks confidently through a simplified Parisian street, carrying a towering stack of vibrantly colored flower gifts. She wears a stylish, casual dress with thigh-high socks and striking red ribbon shoes, her outfit fluttering slightly in the breeze. The background features a minimalistic cityscape in soft pastel tones, with silhouette-style buildings creating a whimsical urban atmosphere. The lighting is bright and cinematic, with subtle lens flares, bokeh, and a soft glow enhancing the dreamy aesthetic. Her expression is charming and playful, capturing a dynamic pose as if mid-stride. The scene has an airy, weightless quality, with floating glitter and iridescent sparkles adding magic to the composition. The art style blends anime illustration with flat colors and muted tones, Depth of field enhances the perspective, making the alpaca girl the clear focal point of this enchanting, storybook-like moment.  alpaca ears, ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) (noon, day time:1.5) BREAK, (simple:2)(deformed:1.6),(colored thin lines, colored sharp lines, delicate lines:1.6), (sound effect text integrated in scene, stylized onomatopoeia:1.6) french braid, hair over one eye, eyes visible through hair, thighhighs, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,<oldman>, oldman,<alpacako_xl>, alpacako, red ribbon, long hair, hoof, fur, bag, Urban_Sketching_Style, still life.,<lora:LCMTurboMix2fix:1>, ,<p4k4k0fr1end> , rabbit-eared girl, rounded rabbit ears, non-pointed ear tips, amber eyes, very abundant hair, layered hair, braided details, shy demeanor, reserved expression, blush,Urban_Sketching_Style, ,<0rn4te r0c0c0 f4nt4sy>, ornate rococo fantasy, porcelain doll aesthetic, ivory and cream color palette, elaborate floral decorations, sculptural details, antique elegance, delicate lace-like ornament, soft diffused light, dreamy atmosphere, muted colors
picko
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
((very strong (Urban_Sketching_Style,:2))),An adorable alpaca girl(solo, ) with sparkling brown eyes , wind-blown hair walks confidently through a simplified Parisian street, carrying a towering stack of vibrantly colored flower gifts. She wears a stylish, casual dress with thigh-high socks and striking red ribbon shoes, her outfit fluttering slightly in the breeze. The background features a minimalistic cityscape in soft pastel tones, with silhouette-style buildings creating a whimsical urban atmosphere. The lighting is bright and cinematic, with subtle lens flares, bokeh, and a soft glow enhancing the dreamy aesthetic. Her expression is charming and playful, capturing a dynamic pose as if mid-stride. The scene has an airy, weightless quality, with floating glitter and iridescent sparkles adding magic to the composition. The art style blends anime illustration with flat colors and muted tones, Depth of field enhances the perspective, making the alpaca girl the clear focal point of this enchanting, storybook-like moment.  alpaca ears, ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) (noon, day time:1.5) BREAK, (simple:2)(deformed:1.6),(colored thin lines, colored sharp lines, delicate lines:1.6), (sound effect text integrated in scene, stylized onomatopoeia:1.6) french braid, hair over one eye, eyes visible through hair, thighhighs, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,<oldman>, oldman,<alpacako_xl>, alpacako, red ribbon, long hair, hoof, fur, bag, Urban_Sketching_Style, still life.,<lora:LCMTurboMix2fix:1>, ,<p4k4k0fr1end> , rabbit-eared girl, rounded rabbit ears, non-pointed ear tips, amber eyes, very abundant hair, layered hair, braided details, shy demeanor, reserved expression, blush,Urban_Sketching_Style,
picko
1
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
An adorable alpaca girl(solo, ) with sparkling brown eyes , wind-blown hair walks confidently through a simplified Parisian street, carrying a towering stack of vibrantly colored flower gifts. She wears a stylish, casual dress with thigh-high socks and striking red ribbon shoes, her outfit fluttering slightly in the breeze. The background features a minimalistic cityscape in soft pastel tones, with silhouette-style buildings creating a whimsical urban atmosphere. The lighting is bright and cinematic, with subtle lens flares, bokeh, and a soft glow enhancing the dreamy aesthetic. Her expression is charming and playful, capturing a dynamic pose as if mid-stride. The scene has an airy, weightless quality, with floating glitter and iridescent sparkles adding magic to the composition. The art style blends anime illustration with flat colors and muted tones, Depth of field enhances the perspective, making the alpaca girl the clear focal point of this enchanting, storybook-like moment.  alpaca ears, ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) (noon, day time:1.5) BREAK, (simple:2)(deformed:1.6),(colored thin lines, colored sharp lines, delicate lines:1.6), (sound effect text integrated in scene, stylized onomatopoeia:1.6) french braid, hair over one eye, eyes visible through hair, thighhighs, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,<oldman>, oldman,<alpacako_xl>, alpacako, red ribbon, long hair, hoof, fur, bag, Urban_Sketching_Style, still life.,<lora:LCMTurboMix2fix:1>, , deformed person , ,
picko
1
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
((very strong (Urban_Sketching_Style,:2))),An adorable alpaca girl(solo, ) with sparkling brown eyes , wind-blown hair walks confidently through a simplified Parisian street, carrying a towering stack of vibrantly colored flower gifts. She wears a stylish, casual dress with thigh-high socks and striking red ribbon shoes, her outfit fluttering slightly in the breeze. The background features a minimalistic cityscape in soft pastel tones, with silhouette-style buildings creating a whimsical urban atmosphere. The lighting is bright and cinematic, with subtle lens flares, bokeh, and a soft glow enhancing the dreamy aesthetic. Her expression is charming and playful, capturing a dynamic pose as if mid-stride. The scene has an airy, weightless quality, with floating glitter and iridescent sparkles adding magic to the composition. The art style blends anime illustration with flat colors and muted tones, Depth of field enhances the perspective, making the alpaca girl the clear focal point of this enchanting, storybook-like moment.  alpaca ears, ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) (noon, day time:1.5) BREAK, (simple:2)(deformed:1.6),(colored thin lines, colored sharp lines, delicate lines:1.6), (sound effect text integrated in scene, stylized onomatopoeia:1.6) french braid, hair over one eye, eyes visible through hair, thighhighs, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,<oldman>, oldman,<alpacako_xl>, alpacako, red ribbon, long hair, hoof, fur, bag, Urban_Sketching_Style, still life.,<lora:LCMTurboMix2fix:1>, , deformed person , ,<p4k4k0fr1end> , rabbit-eared girl, rounded rabbit ears, non-pointed ear tips, amber eyes, very abundant hair, layered hair, braided details, shy demeanor, reserved expression, blush,Urban_Sketching_Style,
picko
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
A vibrant, highly detailed digital illustration rendered in a bold, colorful felt pen style, featuring a cheerful young woman winking playfully as she licks a large double-scoop ice cream cone with pink and mint chocolate chip flavors. She has a sun-kissed complexion with freckles, and her blonde hair is styled in a messy high ponytail. She wears a light purple tied crop top, gold necklaces, hoop earrings, and a stack of colorful woven bracelets. The warm, sunlit background depicts a charming, colorful sweet shop counter with large glass jars filled with pastel candies on the left and a fresh bouquet of daisies and pink flowers on the right, perfectly capturing a joyful, glowing, and stylized summer aesthetic. , wind-blown hair walks confidently through a simplified Parisian street, , her outfit fluttering slightly in the breeze. The background features a minimalistic cityscape in soft pastel tones, with silhouette-style buildings creating a whimsical urban atmosphere. The lighting is bright and cinematic, with subtle lens flares, bokeh, and a soft glow enhancing the dreamy aesthetic. Her expression is charming and playful, capturing a dynamic pose as if mid-stride. The scene has an airy, weightless quality, with floating glitter and iridescent sparkles adding magic to the composition. The art style blends anime illustration with flat colors and muted tones, Depth of field enhances the perspective, making the alpaca girl the clear focal point of this enchanting, storybook-like moment.  alpaca ears, ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) (noon, day time:1.5) BREAK, (simple:2)(deformed:1.6),(colored thin lines, colored sharp lines, delicate lines:1.6), (sound effect text integrated in scene, stylized onomatopoeia:1.6) french braid, hair over one eye, eyes visible through hair, thighhighs, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,<oldman>, oldman,<alpacako_xl>, alpacako, red ribbon, long hair, hoof, fur, bag, Urban_Sketching_Style, still life.,<lora:LCMTurboMix2fix:1>, , deformed person , ,whimsical ink-watercolor illustration, scratchy linework, loose wash shading, muted neutral palette, ivory and warm gray base, dark value shapes, soft warm accents, sepia shading, elongated forms, airy storybook mood
picko
AI artwork generated with Aeterna Opus
Avatar image of picko
avatar-frame
partially hidden behind rain-soaked green leaves outside a quiet neighborhood., making them softly blur the foreground while tiny droplets hang from every leaf edge. . The atmosphere feels forgotten, peaceful and nostalgic.The image shows a woman wearing a white dress , with a building in the background. The painting is a high-definition depicting the woman in a fantasy setting. 1girl, solo, looking at viewer, shirt, long sleeves, closed mouth, hair between eyes, jewelry, jacket, white shirt, green eyes, upper body, collarbone, white hair, earrings, weapon, open clothes, black jacket, open jacket, bag, fingernails, backpack, see-through shirt, long hair,  alpaca ears, (long hair :1.8) ( semi-transparent -zoom layer, ) ( multiple -zoom layer, ) BREAK, muted color, minimum colors, anime coloring, (flat color) , solo, blue eyes, thighhighs, holding, good angle, best light, good pose, cool pose, perspective, (masterpiece:1.2), (best quality:1.2), (very aesthetic:1.2), (absurdres:1.2), ,newest, (depth of field), <bisyoujyo-eye>, iris, eye-shine, sparkling-eyes, tinkle,alpacako_xl>, alpacako, red ribbon, long hair, bag,Urban_Sketching_Style, still life.,whimsical storybook illustration, dense brown-gray ink linework, layered watercolor wash, intricate tiny details, (normal color palette, turquoise blue color and green color accents), lively cluttered composition,<p4k4k0fr1end> , rabbit-eared girl, rounded rabbit ears, non-pointed ear tips, amber eyes, very abundant hair, layered hair, braided details, shy demeanor, reserved expression, blush,vibrant colors, translucent layers, clear gradients, decadent and ephemeral beauty, fluid abstract textures, bright light, delicate details, elegant composition, high resolution, dreamy atmosphere
picko
1