What ChatGPT ads really cost.

Two costs. The ad spend, and the work. Here's what's public about both.

The one number OpenAI publishes

For click campaigns, OpenAI recommends starting with a maximum bid of $3–$5 per click.^[1] That's a starting bid, not a price. Ads Manager may show bid-strength guidance if your bid looks too low to win.^[1]

OpenAI doesn't publish average CPMs or CPCs. Treat anyone quoting “the average cost” with caution. Your price depends on your category and your relevance.

How you're billed

You pick an objective, and it sets how you pay:^[2]

Views: per 1,000 impressions (CPM).
Clicks: per valid click (CPC).
Conversions: optimized toward a purchase or other event, but billed per click (oCPC) or per 1,000 impressions (oCPM). Never per conversion.

Billing is postpay. Spend accrues as ads run and is charged to the card saved in Ads Manager.^[2]

Why relevance lowers cost

ChatGPT ads run on a relevance-weighted, second-price auction.^[1] In plain terms: a more relevant ad can win without the highest bid. Second-price means you generally pay based on what it took to win, not your full max.

So sharp copy and the right context hints aren't just nice. They're how you pay less.

Budget minimums

You set a campaign budget. OpenAI hasn't published a hard minimum we can cite. In the Shopify app, budgets move in $25 steps. Ads Manager allows finer amounts, like $28.^[3]

Do the math before you start

Here's a simple way to size a test. These are example numbers, not benchmarks:

At a $4 click, $600 buys about 150 clicks.
If 2% of those buy, that's 3 orders.
At an $80 order, that's $240 back on $600.

Now change the inputs to your store. Your margin, your order value, your conversion rate. The test exists to replace these guesses with real numbers.

The other cost: running it

Retainers and percent-of-spend fees are built for big budgets. They're a bad fit for a small store testing a new channel.

We do one thing at one price. $499 flat for a 30-day test. Research, ad creative, setup, weekly tuning and a day-30 verdict. Your ad spend goes straight to the platform, under a cap you choose. Never through us.

At day 30 you get a straight answer. Scale it or skip it.

Find out. $499 flat.

A 30-day ChatGPT ads test for your store. We set it up, run it, tune it weekly and give you a straight verdict on day 30. Your ad spend stays on your card, under your cap.

Reserve your test →

FAQ

How much does a ChatGPT ad click cost?

OpenAI recommends starting click campaigns with a maximum bid of $3–$5 per click. Actual costs depend on the auction, your category and your ad's relevance.

Do I pay per conversion on ChatGPT ads?

No. Even conversion-optimized campaigns bill per valid click or per 1,000 impressions.

Is there a minimum budget for ChatGPT ads?

OpenAI hasn't published a hard minimum we can cite. In the Shopify app budgets move in $25 steps; Ads Manager allows finer amounts.

What does Nibble Ads charge?

$499 flat for a 30-day ChatGPT ads test. Ad spend is separate and is paid directly to the platform under a cap you set.

Sources

More guides: ChatGPT ads for Shopify · How ChatGPT ads work

Updated October 18, 2026. Nibble Ads is independent and not affiliated with or endorsed by OpenAI.