Announced by Search VP Robby Stein on September 18, 2026, a new "Dive deeper" button opens an AI-generated topic overview with links to related stories, community reactions, and original reporting — starting on video cards.
2026-09-19 · by Moe Ameen
Published 2026-09-19 · Updated
Short answer
Google is testing "Dive deeper" topic overviews in Discover, starting with video cards. Search VP Robby Stein announced the test on September 18, 2026. Tapping the button opens a short AI-generated summary with prominent links to related stories, community reactions and original reporting, labeled "Generated with AI, which can make mistakes." Google plans to try several designs and has given no rollout date.
Key takeaways
On September 18, 2026, Robby Stein, Google's VP of Product for Search, said the company is experimenting with a new way to explore a topic inside Google Discover. A "Dive deeper" button on a card opens what Google calls a short topic overview: an AI-generated summary paired with prominent links to related stories, community reactions, and original reporting. In Stein's words, the goal is "to make exploring a topic and discovering related web content easier in Discover."
The overview is more than a one-line blurb. Reports of the test describe a longer summary followed by source cards and grouped story summaries organized under sub-topic headlines, each with links and short descriptions of the coverage they point to. The panels carry an AI label noting the summary was "Generated with AI, which can make mistakes."
Crucially for creators, Google is starting the test on videos. "We'll test this experience on videos to start, and experiment with multiple designs" in the weeks ahead, Stein said. Google has committed publicly only to the video starting point and to multiple design experiments, with no rollout timeline or confirmed expansion.
This builds on Google's earlier Discover work: it began surfacing AI previews on trending topics in the feed in October 2025. The new "Dive deeper" step turns that into an on-demand, topic-level overview rather than a card-level preview. As with any Google test, availability is limited and the design is likely to change, so treat the specifics as a snapshot of an experiment, not a shipped feature.
A topic overview is only useful to you if you are one of the sources it pulls from — and it links to "related stories, community reactions, and original reporting," not to whoever posted a single clip. The way to be surfaced there is to own a topic with real depth across formats: the short video that starts the overview, plus the supporting article, the follow-up posts, and the coverage that gives an AI summarizer something to cite. Most creators publish one asset per idea and stop. That is exactly the gap Kompozy fills — it turns one input into a topic's worth of content.
From a single source and under a Persona Brief that locks your voice and angle, Kompozy generates the video Discover is testing this on first — Clipped Shorts cut from long-form and captioned Persona Shorts fronted by a face-locked avatar — alongside the written depth a topic overview links out to: a blog article, an email newsletter, Carousel Posts, and text posts, each on the same subject. Then Autopilot schedules and publishes the set across the eight social platforms plus blog and email behind a per-post review gate, so your take on a topic exists as a video, an article, and a spread of social posts rather than one card hoping to get picked. When discovery increasingly means being cited inside a summary, the winning move is a broad, on-brand footprint on the topic — and producing that footprint from one idea is the whole point of Kompozy.
A real persona short generated in the Kompozy workspace. It shows the format as Kompozy outputs it; it was not made about this story.
Best for:
Not ideal for:
They are AI-generated summaries that open when you tap a new "Dive deeper" button on a card in Google Discover. Google's Robby Stein described them on September 18, 2026 as a short topic overview with prominent links to related stories, community reactions, and original reporting. The panel is labeled "Generated with AI, which can make mistakes."
Google said it will test the experience on videos first and experiment with multiple designs in the following weeks. It has not explained the reasoning beyond that or said whether article cards will follow, so treat anything beyond video as unconfirmed.
That is the concern. Like AI Overviews in Search, a summary that answers the question in-feed can keep some readers from tapping through to the source. The counterweight is that the overview links out to related stories and original reporting, so publishing credible, in-depth coverage of a topic is how you become one of the linked sources rather than a bypassed one.
Own topics with depth across formats instead of posting one asset per idea. A video that seeds the overview, plus a supporting article and social posts on the same subject, gives Discover more of your work to surface and link. A content engine like Kompozy generates that set from one input and publishes it across the eight social platforms plus blog and email.
We checked every date, figure and product claim on this page against the sources listed below on 2026-10-23, and rewrote or removed anything they did not support. The quotes and test details come from Search Engine Journal's report on Robby Stein's post. We removed a claim about article-card code that we could not confirm. Kompozy plan and format details come from kompozy.io/pricing.
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