Hy3 is an open-source large language model hosted on Hugging Face, designed for text generation and AI research. It can be installed and run locally, allowing developers and researchers to fine-tune and integrate it into custom applications.
Hy3 is a Foundation models & chat product. Enabling developers and researchers to use and fine-tune an open-source large language model for text-based AI tasks. It is built as an open-source project for AI researchers, machine learning engineers, developers. Hy3 is open source under the Open Source license. The product ships for the command line, and it can be self-hosted.
Ronaldodev builds and maintains Hy3, and the product first shipped in 2026. Development happens publicly on GitHub with 479 stars and 4 commits in the last 90 days. It operates in a well-populated space: PulseGate tracks 6 similar tools. Key capabilities include text generation, open weights, and custom fine-tuning.
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