validation prompts

configs/KREA2.knf.yaml

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+# ==============================================================
+# == Krea 2 Raw — Rook LoRA
+# ==============================================================
+
+# -- Map exported subset names to source subfolders in MANIFEST.knf.xlsx.
+mappings:
+  felkin_anchor:
+    - "0-ANCHOR"
+  genitals:
+    - "6-DICK"
+    - "6-SHEATH"
+  fullbody:
+    - "0-FULLBODY"
+    - "99-VERSION-LEANER"
+  body_details:
+    - "1-TORSO"
+    - "3-HANDS"
+    - "4-LEGS"
+    - "5-TAIL"
+  fur:
+    - "7-FUR"
+  head:
+    - "2-HEAD"
+
+export_sfw_subset: false
+
+# ==============================================================
+# == Images and captions
+# ==============================================================
+
+augmentations:
+  mirrored_extra: true
+  mirrored_transform: flip_only
+  seed: 12345
+
+image_resize:
+  min_pixel_area: 512
+  max_pixel_area: 1024
+
+caption:
+  subject_sex: male
+  add_domains_to_tags: false
+
+# > Krea 2 uses a Qwen-style text stack, so retain the established prose captions.
+caption_outputs:
+  mode: hybrid_txt
+  formats: [nlg]
+  tag_scope: supplemental
+
+publishing:
+  huggingface:
+    pretty_name: Ladybug Felkin
+    version: v5.5-krea2
+    optimized_for_model: Krea 2 Raw
+    tags: [krea2, krea-2-raw, lora, diffusion-training, image-captioning]
+    adult_content: true
+
+# ==============================================================
+# == LoRA training
+# ==============================================================
+
+training:
+  enabled: true
+  backend: simpletuner
+
+  simpletuner:
+    # > Keep ANIMA's intentional balance of identity, body, and detail images.
+    subsets:
+      felkin_anchor:
+        probability: 1
+        crop: false
+      fullbody:
+        probability: 8
+        crop: false
+      body_details:
+        probability: 4
+        crop: false
+      fur:
+        probability: 1
+        crop: false
+      head:
+        probability: 2
+        crop: false
+      genitals:
+        probability: 3
+        crop: false
+
+    # > These limits, rather than a top-level resolution alone, control Krea 2 input sizing.
+    dataset:
+      type: local
+      dataset_type: image
+      resolution: 1024
+      minimum_image_size: 512
+      maximum_image_size: 1024
+      target_downsample_size: 1024
+      resolution_type: pixel_area
+      caption_strategy: textfile
+      metadata_backend: discovery
+      crop: false
+      crop_style: center
+      crop_aspect: preserve
+
+    # > Keep exactly two ANIMA-derived probes: face identity and explicit anatomy.
+    validation_prompts:
+      enabled: true
+      custom:
+        krea2_portrait: "Rook_Kaefer, a male felkin character, close-up portrait, detailed expressive face, black and red fur markings, soft studio lighting, clean illustration."
+        krea2_anatomy_reference: "Rook_Kaefer, a nude male felkin character, genitalia fully sheathed, clean lighting, neutral reference pose, detailed illustration."
+      from_manifest:
+        enabled: true
+        seed: 42
+        profile: nlg
+      from_prompts:
+        caption_styles: [nlg]
+      
+      
+    model:
+      model_type: lora
+      model_family: krea2
+      model_flavour: raw
+      pretrained_model_name_or_path: krea/Krea-2-Raw
+
+      lora_rank: 64
+      lora_alpha: 64
+      lora_type: standard
+
+      # > Save standard PEFT/Diffusers keys.  ComfyUI maps these native Krea 2
+      # > Q/K/V/O adapters directly; fused QKV adapter keys would not load there.
+      lora_format: diffusers
+      fuse_qkv_projections: false
+      flux_lora_target: null
+
+      # > The official Diffusers base downloads on first training start.  Do not
+      # > point this run at the separate local ComfyUI FP8 checkpoint.
+      pretrained_transformer_model_name_or_path: null
+      pretrained_transformer_subfolder: null
+      pretrained_unet_model_name_or_path: null
+      pretrained_vae_model_name_or_path: null
+      pretrained_t5_model_name_or_path: null
+      pretrained_text_encoder_model_name_or_path: null
+
+      # > Int8 base weights with BF16 LoRA weights lower the 1024px VRAM requirement.
+      base_model_precision: int8-torchao
+      base_model_default_dtype: bf16
+      mixed_precision: bf16
+      quantize_via: cpu
+
+      # > Omit Torch compile: it adds substantial VRAM and is not needed for batch 1.
+      dynamo_backend: null
+      dynamo_mode: null
+      dynamo_use_regional_compilation: false
+
+    # > Learn full-body identity and anatomy first, then expose the complete mix.
+    curriculum:
+      enabled: true
+      phases:
+        - name: focused_start
+          start_step: 0
+          subsets: [genitals, fullbody]
+        - name: full_mix
+          start_step: 400
+          subsets: all
+
+    trainer:
+      tracker_project_name: kneifftools-lora-training
+      tracker_run_name: ladybird-krea2
+      hub_model_id: ladybird-krea2-lora
+
+      optimizer: optimi-lion
+      learning_rate: 0.0001
+      lr_scheduler: constant_with_warmup
+      lr_warmup_steps: 100
+      seed: 42
+      gradient_checkpointing: true
+      max_grad_norm: 0.01
+      grad_clip_method: norm
+
+      train_batch_size: 1
+      gradient_accumulation_steps: 1
+      num_train_epochs: 0
+      # > A 300-image set reaches roughly four nominal passes at this ceiling;
+      # > choose the best 400/600/800/1000/1200-step validation checkpoint.
+      max_train_steps: 1200
+      ignore_final_epochs: true
+
+      caption_dropout_probability: 0.0
+      data_backend_sampling: auto-weighting
+
+      checkpoints_total_limit: 4
+      checkpoint_step_interval: 200
+      validation_step_interval: 200
+      disable_benchmark: false
+      validation_prompt_library: false
+      validation_disable_unconditional: true
+      validation_resolution: 1024x1024
+      validation_num_inference_steps: 28
+      validation_guidance: 4.5
+      validation_guidance_real: null
+      validation_guidance_rescale: 0.0
+      validation_seed: 42
+      num_eval_images: 1
+      validation_negative_prompt: "worst quality, low quality, blurry, cropped, malformed anatomy"
+
+      report_to: tensorboard
+      logging_dir: logs
+      aspect_bucket_alignment: 16
+      tokenizer_max_length: 512
+      t5_padding: null
+
+    # > Artifact-only smoke profile: prepare it, but do not launch this run.
+    trainer_testrun:
+      disable_benchmark: true
+      tracker_run_name: ladybird-krea2-testrun
+      max_train_steps: 12
+      checkpoint_step_interval: 12
+      validation_step_interval: 12
+      validation_num_inference_steps: 12