You need to identify files containing specific phrases using cosine similarity. Cosine similarity is used in vector embeddings, not in generative LLM completion. * text-embedding-ada-002 # Correct model for embeddings and cosine similarity search. * GPT-4, GPT-3.5 Turbo, GPT-4-32k # Generative models, not designed for embedding similarity. The answer: A. text-embedding-ada-002