ChatGPT Ads: How They Actually Work

0.21% versus 3.71% — that's the conversion gap between ChatGPT Ads and Google Ads in the first campaign benchmarks. Engagement tells a similar story: 17 seconds on site against Google's 41. Still, it's too early to write the format off — ChatGPT Ads reach people who simply weren't searching on Google. Here's how it works and what it costs.

Mechanically, ChatGPT Ads sit closer to Google Search than to social: the ad appears inside the conversation at a moment of interest, but there are no keywords. Average CPC runs $2–5, the minimum daily budget is $25, and the platform warns that bids under $3 per click may not deliver. Targeting rests on three levers: geography (down to postal code), your own first-party data (a minimum of 25,000 matched users) and "context hints" — freeform descriptions of relevant topics. Interestingly, keyword-style hints outperformed conversational phrasing on delivery and CTR. The full breakdown is covered by Search Engine Land.

What to weigh before you launch:

• availability spans the US, Canada, UK, Australia, Japan, New Zealand and South Korea (as of August 2026);
• to start you need a legal entity with a Tax ID, a card, a favicon and an account at ads.openai.com;
• OpenAI provides a pixel and reports on impressions, clicks, CTR, CPC and CPM — always add UTM tags;
• you can't see which conversation triggered an ad, so you trust the algorithm, much like early Performance Max.

The takeaway is simple: go in with a test budget and strict UTM attribution, not with hopes of matching Google's numbers. The format catches demand where search hasn't reached yet — and that's its real value.