Google started testing ads inside personalized AI Mode, ChatGPT Ads added buyer tools, and a tagging bug made ChatGPT traffic look like it fell off a cliff.
AI answers are becoming paid media, so give them their own test budget and check your tracking before you trust the numbers.
Your IT team's choice of cloud no longer decides which model your marketing tools can use.
OpenAI and Google Cloud said OpenAI's frontier models and Codex will be sold through Google Cloud's Model Garden and Marketplace, with general availability planned in the coming weeks. Companies can apply existing Google Cloud spend commitments to the purchase. Microsoft stays OpenAI's primary cloud partner.
SourceOpenAI, Oct 21
A playbook you write once, like your brand voice or your reporting steps, gets more portable across tools.
Anthropic is donating Agent Skills, its open standard for packaging the instructions an AI agent follows, to the Agentic AI Foundation, a Linux Foundation project. Anthropic says more than 70 agent platforms already use the standard, and engineers from Anthropic, Google and OpenAI will maintain it.
SourceAnthropic, Oct 22
The assistant that watches your buyer's inbox is now a consumer product, so your first touch may be filtered by one.
Anthropic launched Claude Duet in research preview, a standalone agent app for professionals and small business owners. It sends a morning brief, checks connected apps every few hours, and handles tasks like scheduling, dashboards and forecasts. It asks for approval before it sends messages, makes payments or deletes anything.
SourceClaude, Oct 21
Being chosen as a source is becoming a setting your buyer controls, not just a ranking.
Google says it's showing inline links higher in AI responses more often and is testing a section of official sites at the top of some answers. News carousels built on a user's Preferred Sources are expanding, and Google says Preferred Sources use has grown more than 7x since the start of the year.
SourceGoogle, Oct 15
If you buy search, the AI answer is your next paid channel.
Google confirmed it's testing ads in AI Mode for users who connect apps like Gmail through Personal Intelligence, reversing its March position that those answers would stay ad-free. Its help page says ads won't be based directly on Gmail or Photos content, but Search may use summaries and inferences from connected apps. Sensitive categories are excluded.
It's being built as a real media channel, measured by partners your team may already use.
OpenAI told advertisers it's testing larger visual ad formats, redesigned the Conversions page, added weekly performance emails, and added measurement partners including Northbeam, DV Rockerbox and INCRMNTAL. The news came by advertiser email, not a public post.
If AI referrals fell on your dashboard between Oct 9 and 15, check the tagging before you change the plan.
After GPT-6 rolled out, many ChatGPT links lost their tracking tag, so visits showed up as Direct in GA4. Profound measured answers with at least one tagged link falling from about 98% on October 8 to 66% by October 14, and Graphite reported ChatGPT-attributed sessions down 22% to 57% on sites it tracks. OpenAI hasn't confirmed a bug publicly.
Your programmatic budget is likely touching some of it.
DoubleVerify data reported by Axios shows low-quality AI-generated sites rose more than fivefold in Q2 2026 versus a year earlier. Monthly ad requests to those pages grew from 184 million in January to 834 million in September.
SourceAxios, Oct 17
Three calls we'd make this week if we ran your marketing.
Google and OpenAI are both selling space inside the answer. Run it as a test with its own incrementality read, not as a line inside paid search.
One missing tag erased up to 57% of reported ChatGPT sessions for some sites in a week. Verify before a falling number changes the plan.
Clicks undercount AI influence, and mentions and citations tell different stories. Track whether you're named, on a fixed question set, on a schedule.
Each one fits before Friday. Check them off as you go.
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Reachable top domains with a real llms.txt file
The content-farm story is an industry spending money to look good to AI. We tested one of the most-sold tactics. Of the 1,000 most popular domains, about one in five reachable sites publish a real llms.txt file. Across 397 home services companies, having one showed no measurable lift in Google AI Overview appearances. Don't pay for one. Spend that money on crawler access and real search strength.
Read the llms.txt Reality CheckA systems audit runs our method on your business: a citation baseline on your own buying questions, plus the entity and citation gaps behind it.