Google Ads answers a search someone typed. ChatGPT Ads appears next to a conversation someone is having. That difference shapes almost everything else: how you target, what you can control and how you read the results.
ChatGPT Ads is young and in beta, and details change quickly. The facts here were checked on the date above. Confirm them in OpenAI's help center before you spend money. This guide compares ChatGPT Ads with Google Search campaigns, not with Display, Video or Performance Max.
The short comparison
| Google Ads (Search) | ChatGPT Ads | |
|---|---|---|
| Where the ad appears | On search results | Next to relevant conversations in ChatGPT |
| Who can see it | People searching on Google | People on the Free and Go plans of ChatGPT |
| How you target | Keywords with match types | Context hints, which guide matching |
| How you exclude | Negative keywords | No negative keywords |
| What you can review | The search terms behind your clicks | No search terms report |
| Where bids sit | Depends on the bid strategy | On the ad group |
| Availability | Open to most advertisers | Opens country by country |
Targeting: words versus context
In Google Ads, a keyword has a match type. Broad is the default, phrase uses quotes and exact uses square brackets. The search terms report then shows what people really typed, so you can add negative keywords and steer away from the wrong traffic.
ChatGPT Ads has none of that. You write context hints, which describe the topics and needs where your product may be relevant. They guide matching, but they don't guarantee your ad appears in a specific conversation.
So the skill moves. On Google, much of the work is cleaning up after the fact, one search term at a time. On ChatGPT Ads, relevance is decided up front by your hints, your ad groups and your landing page. If traffic is off target, you rewrite the hints, and you won't see a list of what triggered the ad.
Control and day-to-day work
Google Ads gives you more levers, and years of tools around them, with bid strategies from manual CPC to target CPA and target ROAS.
ChatGPT Ads has fewer. Budgets sit on the campaign and bids on the ad group. You can bid per click, and OpenAI also offers conversion-optimized bidding, which relies on conversion tracking. Fewer levers means a campaign is quicker to set up, and that there is less to adjust when it underperforms.
Budget
In our own testing through the API, ChatGPT Ads refused a daily budget below $25 for a campaign. OpenAI's help center has suggested starting click bids of $3 to $5. Both may change, so check the current figures.
Google Ads doesn't set a similar campaign minimum, which makes small tests easier there. If you can only fund one small test, a tight Search campaign usually tells you more, because you can see which searches you paid for.
Measuring results
Conversion tracking matters on both, and neither should run without it. Comparing the two takes care for one reason: the numbers aren't counted the same way.
ChatGPT Ads conversions can include people who saw the ad without clicking, and the API's default attribution is a 30-day click window and a 1-day view window. Google Ads has its own conversion measurement settings. Two platforms can each claim the same customer, so a side-by-side cost per conversion is a rough guide. Your own sales or lead records are the better judge.
The two also reach people at different moments. Someone searching a product name is near a decision. Someone asking for advice in a chat may be earlier, so give that traffic time before you judge it on last-click sales.
Which one to choose
Start with Google Ads if you need leads now, people already search for what you sell, or your budget is small.
Test ChatGPT Ads if your product takes some explaining, people ask for advice before they buy, your country and category are supported, and you can treat the budget as a test.
For most businesses this isn't a choice of one or the other. Keep Google Ads as the base that captures existing demand, and give ChatGPT Ads a fixed test budget with a clear end date. Decide what would count as success before you start.
The practical steps are in How to run ChatGPT Ads.
Managing both
Each platform has its own interface, so a comparison usually means switching between tabs and exports. Roasby connects Google Ads and ChatGPT Ads, plus Microsoft Ads, in one place, so you can ask your AI assistant how they compare and see them in one dashboard.