Which layer of an AI system do applications such as ChatGPT, Claude Code, and Perplexity belong to?
Show answer & explanation
Answer: User-facing AI products and tools
The data used to train models — Training data is material used to adjust a model during training, not the application a user interacts with. A trained model can be used by multiple applications without each app being part of its training data.
User-facing AI products and tools ✓ — These are user-facing applications built around AI models. An application supplies an interface and a workflow, and can add tools or retrieved information. The model provides capabilities inside that larger system.
The compute platform behind the scenes — Computing infrastructure supplies resources such as processors, servers, and storage. Applications run on that infrastructure but provide a different layer: the interface and workflow through which people use the model.
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