Source: Search Engine Journal
OpenAI's rebuilt search function now displays which sources it queries before responding. Zero Reddit threads appeared in the final answer set despite 84 being available—a gap that signals either quality deprecation or training weights that favor different source types. This reflects a deliberate move away from the user-generated-content-as-training-data model that early LLMs relied on. The transparency matters: we can now observe source discrimination in real time, and search citations are becoming a proxy for algorithmic legitimacy as AI-generated answers proliferate.