Anthropic Fellows Program AI Safety, Economics, And Research Methods Practice Test

Which term describes an AI model whose code and trained weights are publicly available for use?

Open-Source Model API (Application Programming Interface) Dataset RLHF (Reinforcement Learning from Human Feedback)

Correct Answer:

Open-Source Model

Explanation:

Open-source models are AI models whose code and trained weights are publicly available for anyone to inspect, run, modify, or build upon. This openness lets people reproduce results, customize the model for their own needs, and deploy it without relying on a single provider. An API, by contrast, gives access to a model’s functionality through an interface hosted by someone else, without exposing the internal code or the trained weights. That’s why an API isn’t describing an open model. A dataset is the collection of data used to train the model, not the model itself. RLHF, or Reinforcement Learning from Human Feedback, is a training approach used to shape behavior, not a description of whether the model’s code and weights are publicly available.

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