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H2O LLM Studio vs Kiln: catalog facts
H2O LLM StudioKiln
Free

Free and open source.

Free

The app is free and the accompanying library is open source.

Linux, Self-hosted Windows, macOS, Linux
  • Fine-tune models without writing training code
  • Runs on your own hardware
  • Evals, fine-tuning and synthetic data in one app
  • RAG, agents and MCP support
  • Needs a capable GPU for practical training
  • Aimed at people with some machine learning background
  • Licence of the desktop app is not stated in the research
  • Broad scope can be more than a small project needs
Self-hosted Downloadable app
Open source Closed source
License: Apache-2.0 License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked September 26, 2026

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