Google added the extra "E" for Experience in December 2022, emphasizing first-hand knowledge alongside expertise. The framework guides human quality raters, not a single algorithm, so there is no E-E-A-T score to optimize directly. The version in force is dated September 11, 2025, and it addresses AI-written content head-on: "the use of Generative AI tools alone does not determine the level of effort or Page Quality rating. Generative AI tools may be used for high quality and low quality content creation." What raters penalize is scaled, unoriginal output, not the tool that produced it.
What it points at is real. Demonstrated experience, a clear author and brand entity, and trust signals corroborated off your own site are the same things that help AI engines decide who is credible enough to quote.