Google makes five changes to surface links in AI mode and AI Overviews
OpenAI acknowledged a bug that removed the utmsource=chatgpt.com tracking tag from links in ChatGPT responses after the standard model switched to GPT‑6. The missing tag caused traffic to appear as "Direct" in GA4, with reported drops of 22‑57% starting October 9. OpenAI rolled out a fix on the morning of October 15, and by 9:00 AM that day tagged clicks returned to roughly 95‑100% of the prior…
Key points
- OpenAI fixed a missing tracking tag bug on Oct 15, restoring 95‑100% of ChatGPT‑linked clicks in GA4.
- Google announced five link‑display changes in AI mode, including top‑of‑response official sites and image thumbnails.
- Cloudflare introduced a Web Search API for AI agents on Oct 2, pricing at partner API rates and adding hundreds of millions of pages to OpenAI’s index.
On October 15, Google announced five adjustments to how links are shown in its AI mode and AI Overviews. The changes include more frequent in‑text links near the top of responses, image thumbnails for "Dive Deeper" links, an expanded breaking‑news carousel with preferred sources (now 7‑fold higher usage), a test frame that places one or two official sites at the very top of answers, and clickable creator and publisher names in video results. The top‑site frame and video name clicks are still in testing, with target countries not disclosed. The same day Google also made its new Gemini 4 Argon model available to Google AI Pro and Ultra subscribers in the Gemini app and Search AI mode.
Separately, Cloudflare launched a Web Search API for AI agents on October 2, letting developers call real‑time web searches through a single endpoint using partner rates from Ceramic.ai, Exa and Linkup. The company also reported that a pilot with OpenAI has added hundreds of millions of previously unknown pages to OpenAI’s search index, passing metadata but not full text.
Model pages: Gemini 4 Argon → · GPT-6 →
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5 episodes →- Google makes five changes to surface links in AI mode and AI Overviewsthis story
Weekly AI Search News | 6 days when traffic via ChatGPT seemed to have 'disappeared'. Google makes 5 changes to bring links to the front
note.com · 18 October 2026
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