OpenAI has expanded ChatGPT ads to 26 more countries, bringing the total to 89. Its October 21 announcement also says more than 100,000 advertisers have run campaigns since the service launched.

The expansion includes 14 Latin American markets, among them Argentina, Chile, Colombia and Peru. Nigeria, South Africa and Pakistan are also joining, with advertisers able to buy through technology partners or the self-service Ads Manager.

The new markets follow OpenAI’s 31-country European expansion in August, which included Germany, France and Spain.

For advertisers entering these markets, the immediate constraint is account eligibility. OpenAI’s country list determines who can use self-service advertising, while separate targeting restrictions can limit where a new account’s campaigns run.

New accounts may start with their home country

The availability rules require the legal entity advertising and receiving the bill to be based in a supported country.…