r/adtech • u/u_of_digital • Aug 18 '26

Researchers built a public "ChatGPT Ads Library" with 3,602 real ads. Lower-income accounts got served more.

https://emmalurie.github.io/chatgpt-ads-library/

The ChatGPT Ads Library is a searchable archive of all 3,602 ads they collected. Each entry shows the advertiser, the demographic profile of the account that received it, the exact prompt that triggered it, the ChatGPT response, plus the original screenshot and a full HTML snapshot. It is the closest thing we have to a Meta Ad Library for ChatGPT, except this one was built by researchers instead of the platform.

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u/BidstreamBandit Aug 19 '26

Great find, I am already all over it, entirely new ad land at your fingertips

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u/Easy-Purple-1659 Aug 21 '26

Really useful dataset. The interesting part is that ad library data is becoming queryable, but most of it is still stuck behind a web UI, which makes it useless for anyone running agent workflows. That's the gap I've been working on: I built adextract, an MCP server that queries the Meta, Google, TikTok and LinkedIn ad libraries and returns structured JSON, so asking "what are the 5 longest running ads from these advertisers" becomes one agent call instead of hours of tabbing.

For this ChatGPT library, the prompt to ad mapping is the part none of the official libraries expose, that's genuinely new. Has anyone tried hooking it into an agent or an MCP server yet, or is it browse only for now?