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Oumi vs Kiln: catalog facts
Oumi	Kiln
Free Free and open source under the Apache 2.0 licence.	Free The app is free and the accompanying library is open source.
Linux, Command line	Windows, macOS, Linux
Fine-tuning, evaluation and deployment in one CLI Supports SFT, DPO and GRPO including tool-use training	Evals, fine-tuning and synthetic data in one app RAG, agents and MCP support
Requires GPU hardware and Python ML experience Deployment targets limited to a few inference providers	Licence of the desktop app is not stated in the research Broad scope can be more than a small project needs
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 26, 2026

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