Context
OpenAI published WebGPT, a GPT-3-based system that searches the web, follows links and cites sources while answering questions.
What changed
LLMs were demonstrated as active web researchers rather than only parametric text generators.
Why it matters
The retrieve-read-cite pattern closely anticipates later AI answer engines and modern citation optimization concerns.
Visibility OS interpretation
WebGPT is a direct precursor to source-linked generative search behavior.
What remains uncertain
No event-specific uncertainty note is recorded yet. This record may change as new evidence is reviewed.