In January 2026, Leverage, the growth agency founded by Tony Berthomé, opened access to OpenAI’s Ads Manager through its US subsidiary, while ads weren’t yet available in France. The first accounts launched then.
When buying opened in Europe on August 31, 2026, Hiints already existed: about ten advertisers supported, tens of thousands of euros in media every month, and above all a set of reference points nobody else has, because OpenAI publishes none. That base is called the Hiints Index.
Hiints is a specialist brand backed by an established agency. Leverage has supported more than 120 brands across all channels; Hiints does the ChatGPT channel only.