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Oumi vs H2O LLM Studio: catalog facts
Oumi	H2O LLM Studio
Free Free and open source under the Apache 2.0 licence.	Free Free and open source.
Linux, Command line	Linux, Self-hosted
Fine-tuning, evaluation and deployment in one CLI Supports SFT, DPO and GRPO including tool-use training	Fine-tune models without writing training code Runs on your own hardware
Requires GPU hardware and Python ML experience Deployment targets limited to a few inference providers	Needs a capable GPU for practical training Aimed at people with some machine learning background
Downloadable app	Self-hosted
Open source	Open source
License: Apache-2.0	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	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.