Open-weight models

Topic

Open-weight models are artificial intelligence models whose trained parameters (weights) are publicly released, allowing users to download, run, and fine-tune them locally. Unlike fully open-source AI, open-weight models may not disclose their original training datasets, source code, or preprocessing pipelines, leading to debate over their classification. Prominent examples of open-weight models include Meta's Llama series, Mistral AI's models, and DeepSeek-R1.