Publishers watching AI Mode traffic got a fresh warning sign this week: Google’s newest model inside the tool appears to be citing almost nothing. SEO practitioner Gagan Ghotra documented multiple top-of-funnel searches in AI Mode running Gemini 3.8 Flash that returned answers with zero links or source citations. Google’s Robby Stein, who leads AI Mode product work, confirmed on X that the behavior is unintended and that a fix is coming.
The stakes are direct. AI Mode citations are one of the only remaining paths for a publisher to receive a click when a generative answer satisfies the query on the page itself. A model swap that quietly strips those citations does not just change how an answer looks. It removes the mechanism that turns an AI Mode session into a site visit.
Glenn Gabe, another well-known SEO analyst, ran a side-by-side comparison and corroborated the pattern. In his test, the same query returned links under Google’s default AI Mode model but none under Gemini 3.8 Flash. That default-versus-Flash contrast matters more than any single missing link: it isolates the model as the variable, ruling out a broader AI Mode citation policy change and pointing instead at how this specific model was tuned or deployed.
Stein’s response, posted through his personal X account rather than an official Google Search Central channel, called the missing citations “not working as intended” and promised a rollout fix soon. He gave no timeline, no explanation of the underlying cause, and no estimate of how many queries or users were affected before the report surfaced. Google has not published a statement through its usual documentation channels, and no independent measurement of the citation drop’s scope has been released.
That gap is worth naming. Google made a similar quality promise around helpful-content signals in 2023, and sites that lost visibility waited months for any public accounting of recovery. A same-day acknowledgment on X is faster than that precedent, but faster does not mean documented. Until Google confirms which query categories, model versions, or subscriber tiers were affected, publishers have no way to check their own AI Mode citation data against a known baseline.
Gemini 3.8 Flash itself is a lighter, faster variant Google rolled out to AI Mode subscribers earlier this week, distinct from the platform’s default model. Flash-tier models are typically optimized for speed and cost rather than for the retrieval-and-grounding behavior that produces citations, which raises a structural question the fix announcement did not address: whether faster models will consistently under-cite relative to the default model going forward, not just during this one rollout.
Search Engine Roundtable first reported the citation gap and Stein’s response, based on posts from Ghotra and Gabe on X.
Sites that lean on AI Mode referral traffic should pull citation-rate data for queries known to trigger Gemini 3.8 Flash and compare it against the default-model baseline before and after Google’s promised fix ships, since a quiet model swap without a public changelog is now a documented risk to that traffic source.
Search Engine Roundtable (Barry Schwartz) reported this on September 4, 2026, citing X posts from Gagan Ghotra, Glenn Gabe, and Google’s Robby Stein.
