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AI & Machine Learning · Intermediate

Open-Weight Model

A model whose trained weights are publicly downloadable for self-hosting and customization.

Definition

Open-weight models such as Llama, Mistral, Gemma, Qwen and NVIDIA Nemotron can be run on private infrastructure and fine-tuned freely within their licenses. Open weights do not necessarily mean open training data or code, and licenses vary.

Exam tip

Open weights help with data residency and customization but shift hosting and security responsibility to you.

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