A search tool has been created that only returns content created before ChatGPT's public release, aiming to provide a dataset free from AI-generated content. The tool's methodology is not explicitly stated, but commenters speculate it may rely on Google's date filtering, which can be unreliable. The discussion revolves around the tool's potential effectiveness and the challenges of distinguishing between human-generated and AI-generated content. The tool's purpose is to provide a clean dataset for those seeking information from before the AI era.