Open weights
A model whose weights (numbers that the model learned in training) are published for anyone to download and run, usually without the training data or code, and under the vendor's license terms.
Also called
- Open-weight model
- Open model
Kind of
- Model The trained set of numbers (parameters) and structure that takes an input and produces an output; the part of an AI system that does the predicting.
Related
- Small language model A language model that is small relative to frontier models, usually a few billion parameters, and can be run cheaply, often on local hardware.
- Parameters The numeric values a model learns in training, which decide how it turns an input into an output; their count, such as 8 billion, is the usual measure of a model's size.
How it connects
- Open source AI stricter than Open weights
- Sovereign AI often runs on Open weights
- Open weights is one way to release a Foundation model