How Much Do ChatGPT Ads Cost?

Most pages that answer this question are quoting each other. This one uses our own invoice. SmartSites advertises its own services in ChatGPT, and the numbers below come straight from that account. They are one advertiser, in one category (B2B marketing services), in the US, so treat them as a reference point and not a rate card.

What we actually paid

Source: SmartSites’ OpenAI Ads account. June starts on the 4th and November runs through the 10th. Prospecting campaigns only; the campaign optimized for clicks from June through September and for conversions from October.

Two things stand out. Cost per click barely moved, staying between $7.02 and $7.99 every month. CPM moved a lot, from about $80 in July to about $31 in September, because the click-through rate moved in the opposite direction. When you buy on clicks, the price of a click is what you control, and the CPM is whatever falls out of how often people click.

Why earlier numbers were so much higher

If you have heard me say that ChatGPT ads worked out to hundreds of dollars per click, that was true, and it is the reason this page exists. When the US pilot opened in February 2026 the only way to buy was on impressions. Most people read an AI answer and never click, so an impression-priced placement translated into a very expensive click. We piloted it for clients from the start and the results were not there.

OpenAI added click-based buying in the spring of 2026. In its own words, with that option “advertisers are only charged based on a click outcome.” It also offers conversion-optimized campaigns, which bill on valid clicks as well. That change is the difference between hundreds of dollars a click in the pilot and $7.64 in our account since June.

CPM, CPC and conversion bidding

In the Ads Manager you pick an objective, and the objective sets what you are billed for:

• Views is CPM. You are billed per impression served. Use it when the goal is being the one brand in front of someone researching your category.
• Clicks is CPC. You are billed per click.
• Conversions optimizes for an action you select and still bills for valid clicks. It needs OpenAI’s pixel or Conversions API in place, and it needs a daily budget.

You can set a fixed bid or let the system maximize clicks or conversions inside your budget.

Minimum spend and how billing works

OpenAI’s help center states that the standard minimum daily budget for the US is $25, and that the minimum varies by market and currency. I have not found a minimum commitment in the self-serve Ads Manager. A few mechanics are worth knowing before you set a budget:

• On any single day, spend can reach twice your daily budget, and over seven days it can reach seven times the daily budget. A $100 daily budget means up to $700 a week.
• A campaign uses either a daily budget or a campaign budget. You choose at creation and cannot switch later, though you can change the amount.
• Billing is postpay. You are charged when the account reaches its payment threshold, and any balance is charged at month end. New advertisers typically start with a lower threshold.
• Adding a card places a $100 authorization hold that is released automatically.

We run $150 to $200 a day, which has been enough to get stable monthly numbers.

What a click turns into

Clicks are not the goal. Over the same period the account recorded 287 tracked conversions, about $96 each. A tracked conversion is not a qualified lead, and conversion tracking was not fully in place for the first month, so I would not read that figure as a cost per lead.

What I have said on stage this year still holds as of my September 2026 talk in London: measured apples to apples for the same business, cost per lead from ChatGPT remains well above Google, Microsoft and Meta. The value today is awareness and discovery. E-commerce is the exception, because AI search generates demand instead of capturing it. More than 80 percent of the ad-driven ChatGPT traffic to our e-commerce clients was new customers.

What you cannot buy yet

Targeting is the limit to understand before you spend. As of September 2026, US geographic targeting went down to a state or a DMA and no further. That is fine for a national brand. For a single-location business or a single-rooftop car dealership, a whole DMA is far too broad, and it is the main reason I tell local advertisers to wait.

The format itself is simple: one sponsored card per answer, clearly labeled and separate from the answer, shown to users on the free tiers and excluded from sensitive topics. I am not listing character limits or image sizes here because OpenAI has changed them more than once. Check the current ones in the Ads Manager when you build.

How much to budget

Treat it as R&D. My guidance to clients is roughly 5 to 10 percent of search budget, measured on cost per lead like every other channel. Three rules go with that:

1. Get the free placements first. Ads in Google’s AI Overviews and in Microsoft Copilot come from campaigns you already run. Healthy Google and Microsoft accounts make you eligible with no new budget line.
2. Keep ChatGPT as its own plan. It is bought, priced and measured differently from Google and Microsoft. One “AI” line item hides more than it shows.
3. Test with a holdout. An ad that is seen and not clicked often shows up days later as a branded search or a direct visit. Last-click reporting will tell you the ads do not work before it can tell you whether they do. Split by geography or time and judge total lead volume.

And never let “we’re showing up in ChatGPT” excuse a number you would not accept from Google.

Sources

• SmartSites’ OpenAI Ads account, June 4 to November 10, 2026.
• OpenAI Help Center: Daily budgets and Billing & Payment (read Nov 11, 2026).
• OpenAI: New ways to buy ChatGPT ads (May 5, 2026) and the Bidding & Budgets developer guide.
• My talk at Technology for Marketing, London, September 2026: Advertising Inside the Answer.

Questions people ask