What changed in buyer behaviour
In a G2 survey of 1,076 B2B software buyers, reported in March 2026:
| Finding | Share |
|---|---|
| Start their research in an AI chatbot | 51% |
| Chose a different vendor than planned because of what a chatbot told them | 69% |
| Bought from a vendor they had never heard of before | 1 in 3 |
The shortlist now forms in a conversation. If AI doesn't name you there, the buyer may never reach your site.
Why ads, not just organic visibility
- Organic answers take time. Getting named depends on your pages and on independent sources; it moves over weeks and months.
- Ads put you there now, under the answer, on the questions you choose.
- Ads teach you the questions. Campaign data shows which buyer questions bring companies that fit your profile, which tells you what content to build.
Which B2B sectors it matters most for
- Software and SaaS: comparison and "best tool for" questions are AI's daily bread.
- IT and security services: buyers ask for providers by service and region.
- Any category with a long shortlist: where buyers compare five or more vendors, being in the first answer decides who gets the demo.
Why it's not everything yet
- Users on paid ChatGPT plans don't see ads.
- The channel opened to self-serve advertisers only in 2026; benchmarks are thin.
- ChatGPT ads can't target companies or job titles.
The sensible move is a 90-day test alongside organic AI visibility work, judged on companies and pipeline. How to judge a test.
How important, by sector
| Sector | Why AI matters | Where to start |
|---|---|---|
| B2B SaaS | Buyers ask for "best tool" and "alternatives" every day | Ads on comparison questions, plus a fair comparison page |
| Cybersecurity | Framework and evaluation questions lead to vendors | Visibility in independent articles first |
| IT services and MSPs | Buyers ask for providers by service and region | Service and location pages; check ad eligibility |
| Fintech software | Strong questions, restricted ad categories | Visibility first; ads only for eligible tools |
| HR and recruiting software | Questions by country and compliance | Product facts and country pages |
| Data and analytics | Architecture questions with long cycles | Reference architectures and early-stage ads |
A simple test of importance for your company
Ask ChatGPT ten questions your buyers ask before they buy. Count how often you're named and who's named instead. If competitors appear and you don't, AI already matters to your pipeline, whether or not you advertise.
Questions
Is it too early for B2B?
For a large budget shift, yes. For a capped 90-day test and visibility work, no: buyers are already there.
Will AI ads replace search ads?
Not soon. Search still carries far more volume. AI ads add a new moment rather than replacing an old one.
Who should own AI ads internally?
Whoever owns paid demand generation, with sales involved from day one.
Start here: AI ads for B2B. More articles in AI advertising strategy.