# Krea 2 Bianca V7 — Character LoRA Bianca V7 is a photorealistic character LoRA for Krea 2, representing thefictional adult character Bianca. It was trained on Krea 2 Raw andvalidated in ComfyUI on Krea 2 Turbo.The goal was never just to reproduce one attractive face in one familiarportrait. We wanted a character who could remain recognizably Bianca whileacting, reacting and living inside a scene: laughing naturally, looking awayfrom the camera, moving, working with her hands, wearing detailed clothes,appearing in difficult light and occupying environments that were not presentin the training set.## A human + AI collaborationThis LoRA was developed as a long-form collaboration between a human, acting as creative director and final human evaluator, and ChatGPT/Codex, acting as a technical research and production partner.The human role was decisive throughout the project: defining who Bianca is,judging whether a result truly looked and felt like her, identifying unwantedage drift or over-stylization, raising the difficulty of the tests and makingthe final approval call. The AI-assisted role covered dataset auditing,caption and manifest engineering, reproducible configuration, ComfyUIautomation, training supervision, checkpoint preservation, hash verification,controlled comparison and technical documentation.That division mattered. Identity similarity scores can help organize a test,but they cannot decide whether an expression feels alive, whether the face hasaged incorrectly or whether a technically clean image still misses thecharacter. Bianca V7 was therefore approved by human visual judgment supportedby measurements, not replaced by them.## From V6 to V7V7 was not made by simply training V6 for more steps. We began with anindividual audit of 55 image-caption pairs and preserved the material thatwas already useful. Weak, redundant or misleading examples were not allowedto stay merely to increase the dataset size.The final V7 dataset contains 53 deduplicated image-caption pairs:- 41 preserved and corrected examples from the audited material- 12 purpose-built additions for specific gaps- captions reviewed for identity, emotion, gaze, pose, action, framing, lighting, clothing and environment- manifests and hashes connecting every training item to its provenanceThe corrective images were selected to teach missing behavior rather thanrepeat easy beauty portraits. The aim was coverage: spontaneous emotion,off-camera gaze, movement, practical action, profiles and three-quarter views,hands interacting with objects, full-body framing, difficult lighting,layered clothing and visually busy locations.## What did not work — and what we learnedThis release also contains the lessons from failed and weaker attempts:- Some early prompts made Bianca look older than intended even when the image was otherwise attractive.- Low LoRA strengths preserved scene freedom but weakened identity too much.- High identity pressure could flatten expression or make the result feel more like a posed reference photo than a living scene.- More training was not automatically better: the step-2000 checkpoint was complete and valid, but step 1500 preserved a better balance of identity, naturalness and scene plasticity.- A controlled V6 img2img stress test produced black outputs on a few difficult references. The failures were reproduced, documented and resolved with safer conditioning instead of being silently removed.- Strong img2img similarity can be useful for stress testing, but it was kept separate from the frozen text-to-image validation used to approve the LoRA.These findings changed the dataset, the prompt protocol and the finalcheckpoint decision. The released file is the checkpoint that performed best,not merely the last file produced by the trainer.## Recommended settings- Trigger: <code>BiancaV7</code>- Recommended strength: 0.70–0.75- Balanced starting point: 0.70- Practical default after extended stress testing: 0.75- Validated inference base: Krea 2 Turbo- Sampler / scheduler: Euler / Simple- Steps: 8- CFG: 1.0Below 0.50 the identity becomes substantially weaker. The selected checkpointis step 1500. Strength 0.70 passed the frozen formal protocol; 0.75 was thenpreferred by the creative director across a broader range of ordinary,cinematic and extreme stress-test scenes.## Reproducible training- 53 audited image-caption pairs- 1024 logical resolution with buckets- rank / alpha: 32 / 32- AdamW8bit, constant LR 1e-4- bf16, FP8-scaled base, SDPA, gradient checkpointing- seed 42- A40 48 GB- selected checkpoint: step 1500 of 2000- checkpoints preserved every 250 steps- smoke test completed before the production run## Controlled validationPrompts, seeds, dimensions, sampler settings and workflows were frozen so eachcomparison changed only the intended model or strength. The release passed:- 48-image checkpoint screening- 36-image strength sweep- 18-image unseen holdout against Bianca V6 and pure Krea 2- six unseen scenarios covering emotion, gaze, action, environment and light- no hard failures in the final holdoutThe final holdout averages were:- identity consistency: 3.08 / 5- global image quality: 3.67 / 5- expression and gaze: 3.83 / 5- anatomy and action: 3.83 / 5- scene plasticity: 4.00 / 5After formal approval, Bianca V7 was pushed further through ordinary life,fashion, low-key light, neon, crowded interiors, action, difficult cameraangles and reference-guided img2img stress tests. Those additional tests didnot replace the holdout; they demonstrated how the approved LoRA behavedoutside it.The accompanying gallery uses original text-to-image prompts rather thanthird-party image references. Workflows, scoring sheets, contact sheets,captions, manifests, logs, costs and SHA-256 hashes were retained as part ofthe project record.## Why we are publishing itBianca V7 is more than a downloadable weight file. It is the result of atraceable creative experiment: preserve what works, document what fails,change one variable at a time and let a human creative judgment make the finaldecision. We are publishing both the character and the process becausereproducibility should not remove personality, and personality should notrequire abandoning technical rigor.## LimitationsIdentity can weaken at extreme distance, behind heavy occlusion, with veryunusual expressions or below the recommended strength. Hands, typography andsmall objects remain subject to limitations of the base model.Bianca is a fictional adult. Do not use this model for fraud, deceptiverepresentation of real people, harassment, illegal content or violations ofprivacy, consent or intellectual-property rights.## License and attributionKrea 2 is licensed under the Krea 2 Community License Agreement:<a target="_blank" rel="ugc" href="https://www.krea.ai/krea-2-licensing">https://www.krea.ai/krea-2-licensing</a>This LoRA is a modified derivative of Krea 2 and is not an official Kreaproduct or endorsed by Krea. Commercial use is subject to the revenue thresholdand all other conditions in the Krea 2 Community License Agreement.## Nota em portuguêsBianca V7 nasceu de uma parceria real entre direção criativa humana e execuçãotécnica assistida por IA. Nós auditamos o material imagem por imagem, mantivemoso que funcionava, corrigimos lacunas específicas, treinamos com checkpointsrastreáveis e recusamos escolher o último checkpoint apenas por ele ser oúltimo. A aprovação final veio da combinação entre testes congelados,documentação completa e avaliação visual humana. O resultado é uma Bianca maisexpressiva, flexível e capaz de continuar sendo ela mesma em situações fáceis,difíceis e extremas.

Krea 2 Bianca V7 — Character LoRA

Official Bianca V7 contest release.Selected checkpoint: step 1500 of the 2000-step production run, chosen after controlled checkpoint screening and frozen holdout validation.Trained locally on Krea 2 Raw using 53 individually audited and deduplicated image-caption pairs. Validated in ComfyUI on Krea 2 Turbo.Trigger: BiancaV7Recommended strength: 0.70–0.75Practical default: 0.75Bianca is a fictional adult character. This release is intended for SFW character generation.

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