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H2O LLM Studio vs Oumi: catalog facts
H2O LLM Studio	Oumi
Free Free and open source.	Free Free and open source under the Apache 2.0 licence.
Linux, Self-hosted	Linux, Command line
Fine-tune models without writing training code Runs on your own hardware	Fine-tuning, evaluation and deployment in one CLI Supports SFT, DPO and GRPO including tool-use training
Needs a capable GPU for practical training Aimed at people with some machine learning background	Requires GPU hardware and Python ML experience Deployment targets limited to a few inference providers
Self-hosted	Downloadable app
Open source	Open source
License: Apache-2.0	License: Apache-2.0
No account needed	No account needed
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 October 2, 2026

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