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An AI model whose trained numbers (weights) are published, so anyone can download it and run it on their own computers.
AI Drafted with AI help · Reviewed by Keshav Aggarwal · Updated
In simple words
Some restaurants only let you eat their dish at their place. Others hand you the full recipe so you can cook it at home.
An open-weights model is the second kind: you get the recipe.
The technical side
A model’s weights are the billions of numbers learned in training. An open-weights model publishes them, often on Hugging Face, under a licence that allows downloading, running and usually fine-tuning it. Llama, Mistral, Qwen, DeepSeek and Gemma models are examples.
Open weights is not always fully open source: the training data and code may stay private, and licences can restrict use. See which open models are trending on our New AI models page.
Open Weights kya hai?
Open weights model ka matlab hai model ki "recipe" sabke liye free hai. Tum use download karke apne computer pe chala sakte ho.