Faro AI Signals·September 27, 2026

Gemini gets a buy button as ChatGPT loses prompt share

Google is testing a buy button on Flipkart listings inside Gemini and AI Mode, Comscore has ChatGPT down to half of US prompts, and DataDome found only 2.4% of tested sites can tell one bot from another.

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This Week's Signals

1

Google puts a buy button on Flipkart listings in Gemini

Source: TechCrunch ↗

Why it matters for your score

When the assistant closes the sale in its own interface, your product feed is the storefront. Price, stock and identifiers have to be readable by a machine that never loads your page.

2

ChatGPT fell from 70% to 50% of US prompts in 6 months

Source: Comscore ↗

Why it matters for your score

Gemini went 17% to 30% and Claude 2% to 11% over the same period. Optimising for one assistant is now a bet on a shrinking share of the questions.

3

Only 2.4% of 20,000 tested sites blocked every bot type

Source: DataDome ↗

Why it matters for your score

Most sites cannot separate a buying agent from a scraper, so they block broadly and lose the agents they wanted. AI bot requests to login pages rose from 11.9 million in January to 99.7 million in June.

4

Bing tests renaming its Copilot tab to AI Mode

Source: Search Engine Roundtable ↗

Why it matters for your score

The answer surfaces are converging on one name and one shape. Treat them as a single category to be found in, not as separate per-engine projects.

Emerging Audit Signals

Assistant share is moving fast enough that single-engine optimisation is a bet rather than a strategy.

Checkout keeps moving inside the assistant, which turns your structured product data into the shopfront.

Agent traffic is outgrowing most sites ability to tell a buyer from a scraper, and the reflex is still to block both.

AI answer surfaces across Google, Bing and the chat apps are converging on the same name and the same behaviour.

What to do this week

  1. 1

    Pull 30 days of server logs and separate GPTBot, ClaudeBot, PerplexityBot and Google-Extended from the scrapers. Confirm your firewall is not blocking the 4 you want. The AI readiness scan at /tools/ai-readiness-scan checks crawl access if you would rather not read logs.

  2. 2

    Open 5 product or service pages and check that price, availability and identifiers sit in Product schema, not only in the rendered text. An assistant that cannot read your price will quote someone else's.

  3. 3

    Run your 10 highest-intent buying questions through ChatGPT, Gemini and Claude and record who gets named. Gemini and Claude are now 41% of US prompts between them, so a ChatGPT-only check misses most of the room.

Sources

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