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The Death of Search: How Shopping Will Work In The Age of AI

The web is unhealthy, and AI agents are about to rewrite how we shop. In this episode, a16z General Partner Alex Rampell and Partner Justine Moore explore how AI agents will change commerce and the implications for Google’s business model, affiliate marketing, online shopping, and more. Timecodes: 0:00 Introduction 0:36 Affiliate Marketing and the Evolution of Online Purchases 1:59 Impulse Buys vs. Considered Purchases 2:51 Observing Consumer Behavior and Viral Trends 6:09 Dynamic Pricing and Consumer Surplus 7:14 E-commerce vs. In-Person Shopping 10:20 The Challenge of Attribution in Online Sales 12:28 Aggregators, Brands, and the Commodity Trap 15:36 Trends, Trust, and the Power of Aggregators 17:46 Google’s Freemium Model and the Future of Search 21:17 The Problem of Hallucination in AI Product Recommendations 22:52 The Commercialization and Pollution of the Internet 29:30 The Costco Model: Trust and Value 33:20 The Spectrum of Purchases and AI’s Role 37:57 UPCs, SKUs, and Automation in Commerce 39:52 Opportunities for New Winners in AI-Driven Commerce Resources: Read the article: http://a16z.com/ai-x-commerce/ Find Alex on X: https://x.com/arampell Find Justine on X: https://x.com/venturetwins Stay Updated: If you enjoyed this episode, be sure to like, subscribe, and share with your friends! Find a16z on X: https://x.com/a16z Find a16z on LinkedIn: https://www.linkedin.com/company/a16z Listen to the a16z Podcast on Spotify: https://open.spotify.com/show/5bC65RDvs3oxnLyqqvkUYX Listen to the a16z Podcast on Apple Podcasts: https://podcasts.apple.com/us/podcast/a16z-podcast/id842818711 Follow our host: https://x.com/eriktorenberg Please note that the content here is for informational purposes only; should NOT be taken as legal, business, tax, or investment advice or be used to evaluate any investment or security; and is not directed at any investors or potential investors in any a16z fund. a16z and its affiliates may maintain investments in the companies discussed. For more details please see a16z.com/disclosures.

Alex RampellhostJustine Moorehost
Sep 16, 202545mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

AI agents reshape shopping, undermining search, trust, and attribution economics

  1. Search is fragmenting as users shift informational queries from Google to LLMs, while high-intent commercial queries largely remain with Google due to better reliability and current LLM hallucination issues.
  2. Affiliate marketing and last-click attribution have distorted online commerce incentives, rewarding “attribution theft” (e.g., coupon extensions) rather than true demand creation, and AI will make attribution even harder.
  3. AI’s biggest near-term impact is likely in the “middle” of the purchase spectrum—utility and moderately considered buys—through automated research, price watching, couponing, and execution when conditions match user preferences.
  4. The web’s quality problem (SEO-optimized “crap,” affiliate-driven listicles, fake reviews) limits the value of AI summarization, creating an unmet need for trusted, high-signal product evaluation sources.
  5. New opportunities emerge for specialized AI shopping agents and merchant infrastructure that supports agentic browsing, payments, and product data standards (UPCs/SKUs), potentially shifting the “GDP tax” away from Google and toward new intermediaries.

IDEAS WORTH REMEMBERING

5 ideas

LLMs are taking “free” queries before they take “paid” queries.

They’re already absorbing non-monetizable informational searches, but commerce searches remain sticky with Google because users need accurate, current product data and dependable paths to purchase.

Affiliate economics incentivize content pollution, not truth.

When revenue depends on affiliate links, “best X” pages become optimized for commissions, so AI summarizing the open web can amplify biased or low-quality inputs unless the underlying incentives change.

Last-click attribution is structurally vulnerable—and AI worsens it.

Coupon tools can “steal” credit right before checkout, and with AI adding more touchpoints (Reddit, ads, LLM chats, agents), allocating credit across the journey becomes even less deterministic.

AI’s sweet spot is automating repeatable utility decisions, not creating desire.

Agents can excel at “I know what I want—get me the best price/terms,” but struggle to “inculcate demand” that comes from cultural signals like TikTok trends and social proof.

Product identity (UPC/SKU) determines how automatable a purchase is.

If an item has a standardized identifier, an agent can reliably comparison-shop and execute; without one (e.g., many furniture/home goods), AI must first resolve ambiguity, making automation harder.

WORDS WORTH SAVING

5 quotes

The World Wide Web is unhealthy right now. Most of the things on the internet are crap, and they're crap, and we know that they're crap, but they SEO optimize crap. So how do you decrapify that?

Alex Rampell

The most kind of pervasively corrosive business model, I think, on the internet is this, like, last-click attribution.

Alex Rampell

I probably use ChatGPT, like, three orders of magnitude more than I use Google now, which is interesting.

Alex Rampell

Google... they kind of are a tax on GDP. Consumer spending is a huge part of GDP. They get a percentage of all that spend because they're charging per click. That tax might just shift elsewhere.

Alex Rampell

My favorite business model for commerce by far is Costco. I think Costco is the greatest company in the world because Costco refuses to sell bad things.

Alex Rampell

Affiliate marketing mechanics (cookies, pixels)Impulse vs. considered purchases spectrumCamelCamelCamel and automated price-action loopsDynamic pricing and consumer surplusAttribution and last-click “theft” (Honey/RetailMeNot)Aggregators vs. single-brand commodity trapWeb pollution: SEO spam, fake reviews, walled gardensCostco as trust-and-membership modelUPCs/SKUs as automation enablersAI hallucinations in product recommendationsAI agents and merchant/payment infrastructure

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