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Technical notes on generative AI

Guides on training, prompting and running open models locally. Every claim is traced to a primary source — official docs, model cards, repositories, or the code itself.

25 articlesRSS

AI video (4)Training LoRAs (7)Models of 2026 (5)ComfyUI (2)Prompting and control (3)Fixing things (4)

Anima LoRA Training: Settings, Samplers, and Local Setup

How to configure Anima for image generation, pick the right sampler, and train a LoRA locally with verified settings and hyperparamete…

Training LoRAs

RunPod vs Vast.ai for LoRA Training on Rented GPUs

Choose the right cloud GPU instance, compare templates, and keep costs low.

Training LoRAs

Build a LoRA Dataset: Sources, Cleanup, Captioning Tools

A practical guide to sourcing images, cleaning data, and using JoyCaption and WD14 tagger for LoRA training dataset preparation.

Training LoRAs

FLUX.2 Klein 9B Local Deploy, LoRAs vs Flux.1-dev

A guide to running FLUX.2 Klein 9B locally, using consistency LoRAs for character work, and comparing it with Flux.1-dev

Models of 2026

Leaving A1111 in 2026: Forge, SwarmUI, SD.Next Compared

Forge, SwarmUI, and SD.Next as A1111 replacements — what breaks, what survives, extension migration guide.

Fixing things

HunyuanVideo: FP8 vs BF16, ComfyUI Setup, LoRA Training

Pick the right HunyuanVideo model file for your GPU, configure ComfyUI, and train a video LoRA.

AI video

Illustrious & NoobAI: Characters, Prompting, LoRA Training

Which anime characters Illustrious XL and NoobAI know natively, how to prompt them with Danbooru tags, and practical LoRA training set…

Models of 2026

KREA 2 Turbo: Photorealism Settings & Prompt Framing Guide

Verified KREA 2 Turbo photorealism settings, prompt framing for zoom control, and 2026 model comparisons.

Models of 2026

Fixed-Seed Checkpoint and LoRA Comparison

A practical methodology for fair Stable Diffusion model comparisons — control variables and read grids honestly.

Training LoRAs

Textual Inversion Training Guide 2025: Embeddings vs LoRAs

When to use Textual Inversion over LoRA, Kohya_ss and A1111 settings, and the learning-rate gap explained.

Training LoRAs

Latent vs Model Upscaling: Complete AI Image Guide

Compare latent upscaling, model upscalers, hires fix, and tiled workflows. Learn which method works best for photorealistic vs illustr…

Fixing things

Faster Local Video with SageAttention & TeaCache

Compare five acceleration techniques for ComfyUI video workflows — benchmarks, trade-offs, and install steps for each method.

AI video

Z-Image Turbo: Local Setup & Training

Learn to run Z-Image Turbo locally, build img2img and inpainting workflows in ComfyUI, and train character LoRAs with the ostris train…

Models of 2026

Camera Angle Prompts in Stable Diffusion

Camera angle and shot-type vocabulary for Stable Diffusion and SDXL prompts, with verified resolution, CFG, sampler and weighting sett…

FLUX.1 LoRA Training Parameters: The Settings That Matter

FLUX.1 LoRA training parameters explained: dataset prep, captioning, learning rate, network dim and alpha, and VRAM for 12GB–24GB GPUs.

Training LoRAs

IPAdapter vs ControlNet vs Regional Prompter in ComfyUI

Which conditioning tool to use in ComfyUI for style transfer, composition and character consistency — and the settings that work.

ComfyUI

Merge Stable Diffusion Checkpoints: Methods & Block Weights

Merge Stable Diffusion checkpoints: weighted sum vs add difference, SDXL block weights, merge vs LoRA, and how to evaluate the result.

Fixing things

Negative Prompts by Model: What Actually Works

Negative prompts work on SD 1.5 and SDXL but do nothing on Flux dev, SDXL-Turbo and Pony by default. See what steers each model family.

Pony Diffusion score_9 and score_8_up quality tags explained

What score_9, score_8_up, source_pony, and rating_safe do in Pony Diffusion, how Illustrious masterpiece tags differ, and when quality…

Models of 2026

ComfyUI Import Errors: Fix Python Env & CUDA Mismatches

Resolve ComfyUI import failures, onnxruntime-gpu CUDA mismatches, and embedded Python package location issues with verified fixes.

ComfyUI

Fix Faces and Hands with ADetailer and FaceDetailer

Compare ADetailer for A1111/Forge and FaceDetailer for ComfyUI — automatic inpainting that detects faces, hands, and persons.

Fixing things

Stable Diffusion Samplers and Schedulers Explained

Pick the right sampler for SD1.5, SDXL, and Flux — deterministic vs. stochastic, step count trade-offs, and scheduler settings that ma…

Train Your First LoRA Free: Data, Captions, Settings

Free LoRA training guide: dataset prep, WD14/BLIP captioning, and the hyperparameters that actually matter. Colab + local workflows.

Training LoRAs

PYTORCH_CUDA_ALLOC_CONF and VRAM Optimization

Fix CUDA OOM with PYTORCH_CUDA_ALLOC_CONF, optimize FLUX training with blocks_to_swap, and run Wan2.1 and HunyuanVideo on 12 GB GPUs.

AI video

Wan 2.2 High Noise vs Low Noise LoRA Workflow

Sequential ComfyUI chain: high-noise KSampler feeds low-noise KSampler. Correct LoraLoaderModelOnly setup and training guide.

AI video