ChatGPT now sells ads, and the first numbers OpenAI has published are large. Whether a small business should buy them is a separate question. The honest answer today is a small, capped test, and only after the basics of your paid advertising already work. This post separates what OpenAI documents, what one outside study found, and what we could not find published.
What ChatGPT Ads are and how a business buys them
ChatGPT Ads are paid placements inside ChatGPT conversations, bought through OpenAI's own Ads Manager. In its 31 August 2026 announcement, OpenAI says ads are always clearly labeled and separate from ChatGPT's answers, and that advertising does not influence the answers ChatGPT provides. It also says the ads system uses the context of the current conversation to pick a relevant ad.
To buy, you sign up at ads.openai.com. The sign-up page describes three steps: create a campaign with a budget and a goal, add your ad details by bulk upload or inside the tool, then launch and measure. Larger advertisers can request sales support, and OpenAI says ads are also sold through its Ads Solutions team and its agency and technology partners.
OpenAI says the platform now offers a Pixel and a Conversions API for measurement, product feeds, platform and geographic targeting, and custom audiences. It also says bidding on cost per click or on outcomes now accounts for the majority of campaigns.
What OpenAI says about revenue and small businesses
OpenAI says ChatGPT Ads reached $1 billion in annualized revenue run rate in less than 200 days after launch. That is OpenAI's own claim, dated 31 August 2026, and it is a revenue figure for OpenAI. It shows advertisers are spending money, not that they are earning it back.
On small businesses, OpenAI says Ads Manager, introduced in May, opened the platform to small and medium-sized businesses, which now represent a "material share" of the business. It gave no figure for that share.
OpenAI also cited two examples: an ecommerce advertiser that reached a 3x return on ad spend over 28 days, and a technology partner reporting that more than 80% of ad-driven ChatGPT traffic is from new customers. These are single examples chosen by the seller, published without a method. Read them as marketing, not as benchmarks.
The three figures below all come from OpenAI's 31 August 2026 announcement, and none comes from an independent source. Read the run rate as revenue for OpenAI, not as a return for advertisers, and the two examples as marketing, not as benchmarks.
$1 billion
ChatGPT Ads annualized revenue run rate in less than 200 days (OpenAI's own claim, revenue for OpenAI, not a return for advertisers)
3x
Return on ad spend over 28 days, one ecommerce advertiser (example chosen by OpenAI, no method given)
80%+
Ad-driven ChatGPT traffic from new customers (more than 80%), per one technology partner (example chosen by OpenAI, no method given)
What we could not find yet
No independent source we could open publishes a cost per lead or a conversion rate for ChatGPT Ads, so a small business cannot yet say what a lead should cost on this platform. The closest outside look is a report from Graphite and Similarweb dated 28 September 2026. It combines Similarweb's panel data with Graphite's analysis of more than 95,000 US ads from over 500 advertisers and 8,000 landing pages.
That report says click-through rates have doubled since launch. Its advice is still to budget ChatGPT as a test, because the advertiser base has not settled.
| Question | Status | What the sources say |
|---|---|---|
| Can a small business buy ads? | Documented by OpenAI | Ads Manager, introduced in May, opened the platform to small and medium-sized businesses. OpenAI gave no figure for their share. |
| Are advertisers spending? | Documented by OpenAI | $1 billion annualized revenue run rate in less than 200 days (OpenAI's own claim, 31 August 2026). |
| Are click rates rising? | Reported by Graphite | Click-through rates have doubled since launch (28 September 2026). That tells you the number rose, not that it is high. |
| What does a lead cost? | Not found | No independent source we could open publishes a cost per lead or a conversion rate. |
| What do clicks cost, and how many leads close? | Not found | Cost per click, cost per lead and close rates for small advertisers are not in the sources we read. |
| Will today's results hold? | Reported by Graphite | Graphite notes that few advertisers hold a steady top spot, so results today may not hold next quarter. |
| Which offers suit it? | Reported by Graphite | Its top 10 advertisers all sell something buyable in one sitting, and it advises testing long sales cycles with caution. |
Read the table as a map of what you can lean on. The two rows documented by OpenAI are the seller's own statements: they show the platform is open to small businesses and that advertisers are spending money, not that they are earning it back. Where a row says not found, your own test numbers are the benchmark.
Who should test it, and who should wait
Test it if your Google and Meta campaigns already track leads, your offer can be bought or booked quickly, and you can afford to lose the test budget. Wait if you cannot yet say what a lead costs you today. Graphite's research finds that Google Search still carries far more ad volume than ChatGPT, and it recommends treating ChatGPT as an addition to your budget, not a swap.
If your search campaigns are not producing leads at a cost you know, fix that first. A well-run Google Ads management program gives you the cost per lead that every other channel gets measured against.
How to set a test budget without guessing
Set the test budget at an amount you can lose without touching any other channel, and set the stopping rule before you launch. With no benchmark to lean on, your own numbers are the benchmark. Here is a simple way to run it.
Running the test, in order
Set your ceiling
Take your current cost per lead from Google or Meta. That is your ceiling.
Fix the budget and the window
Choose a fixed budget and a fixed number of weeks, and write both down.
Pick one landing page
Send traffic to one existing page that matches the offer. Graphite found most advertisers use five or fewer landing pages and that product, pricing and feature pages are the most common.
Set up measurement
Install the Pixel or Conversions API so a form submission or booking counts as a conversion.
Compare and decide
At the end of the window, compare cost per lead to your ceiling. Keep it, change the creative, or stop.
Plan to re-test, because Graphite expects turnover and tells advertisers not to set and forget. Graphite also advises writing new copy for this channel rather than reusing ads from elsewhere, and our post on ad fatigue covers why stale ads lose attention.
Why being named in the organic answer still matters
An ad is a rented slot, and being named inside the answer is something OpenAI says ads cannot buy. Its own statement is that advertising does not influence the answers ChatGPT provides. The label keeps the two apart, and the ad stops when your budget stops.
Being named in the answer depends on whether the engines can retrieve and trust your business. If customers ask ChatGPT about your category and you are not in the response, ads will not change that, and the causes are covered in why your business is invisible to ChatGPT and on our not in AI answers page. The fix is the work described on the generative engine optimization page: clear answers on your pages, consistent business facts everywhere, and mentions on sites the engines already trust.
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