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AI Toolkit vs Kohya's GUI: catalog facts
AI Toolkit	Kohya's GUI
Free Free and open source.	Free Free to download and run from the public repository.
Self-hosted, Command line	Windows, Linux
Trains LoRAs and fine-tunes diffusion models Web UI as well as config-file workflows	Graphical front end for Kohya's sd-scripts Presets and saved configurations for training runs
Training needs a powerful GPU with plenty of memory Aimed at users comfortable with model training concepts	Training needs a GPU with substantial memory Many training parameters to learn before getting good results
Downloadable app, Self-hosted	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.