GPTfor.me is a tool that allows users to upload their own content to use as context for GPT-3. This allows users to ask GPT-3 about topics it may not know about. The tool uses a semantic search technique with OpenAI embeddings to create embeddings for both the uploaded content and the prompt. These embeddings are then used to calculate the most relevant content to submit to GPT-3 as context, which helps GPT-3 generate more accurate responses. This technique can be useful for a range of use cases, such as interacting with interesting content, helping students learn faster, answering questions about internal documents, teaching customers about products, and summarizing key thoughts from a conference.