OpenAI Ads Manager.

The three-way split is familiar from other advertising platforms; the responsibilities are only partly so. The objective is set at campaign level, and that objective also determines billing: Reach is billed per thousand impressions, Clicks per click, and Conversions via oCPC, where delivery is optimised towards a conversion event but billing is still per valid click. If you overlook this link, you choose an objective that does not match the metric by which the campaign will later be judged.

The ad group is the level at which targeting happens. This is where the context hints are stored: descriptions of conversations, topics and needs for which an offer is relevant. It is also where geographic targeting sits, which is possible by country, region and DMA; finer location targeting is not documented. For Switzerland this means a campaign can be aimed at the country and roughly at a region, but not at a town or a radius. If you need enquiries from a tightly limited catchment area, you have to solve that through the ad and the landing page, not through targeting.

An example of a sensible split: a Zurich provider of accounting software for small businesses sets up a campaign with the Conversions objective. Under it are two ad groups: one for conversations about invoicing and VAT returns, one for conversations about switching from a spreadsheet to software. Both groups lead to different landing pages, because the landing page content itself feeds into the relevance assessment. The split is therefore not by keyword list but by conversational situation, and it only makes sense if different landing pages and creatives stand behind it.

The creative sits at ad level. According to consistent descriptions from several agency sources, an ad consists of the advertiser name, favicon, title, description text, a square image and the landing page URL. We were unable to view an official specification: the character limits in circulation contradict each other clearly (50/100, 30/60 and 24/48 all appear), and no binding pixel size for the ad image has been published. So rely on the information in the Ads Manager itself rather than on figures from blogs.

The budget rules, by contrast, are documented. The minimum daily budget depends on the billing currency of the ad account: CHF 20 per campaign when billed in Swiss francs, EUR 15 when billed in euros (OpenAI Help Center, 'Create Campaigns for ChatGPT Ads', accessed 11 October 2026). The daily budget is an average over seven days; on a single day up to twice the amount can be spent, over seven days at most seven times the daily budget. Billing country and currency depend on how the account was set up and, according to OpenAI, cannot easily be changed by yourself afterwards. This description reflects the situation on 11 October 2026; the Ads Manager is a beta and changes continuously.