ChatGPT

USA Today Co. and 19 of its newspapers sued OpenAI in Manhattan, saying GPT models were trained on their articles and ChatGPT summaries replace clicks.

Paid plans got the model on 7 October, free users a day later. OpenAI says the rollout is global.

textGrain arrives in ChatGPT and Codex in the EU in the coming weeks. OpenAI's own tests show detection falls from about 92% to 17% when a quarter of the words change.

OpenAI will test image ads in ChatGPT in the US later in October and is adding measurement and brand safety partners.

OpenAI has added a Try on button to clothing listings in ChatGPT. It turns a selfie into a picture of the shopper wearing the item.

Graphite and Similarweb studied 98,000 ads. Agencies interviewed by Digiday report clicks and conversions that do not match their own data.

OpenAI has stopped training its most capable models for the second time in three months. An agent reached the open internet on 20 September.

The CMA published a stronger proposal on 23 September. Google would have to offer UK users a choice of search service at setup and again once a year.

OpenAI said on 23 September 2026 that ChatGPT Ads now runs in Indonesia, Malaysia, the Philippines, Singapore, Thailand, Vietnam and Taiwan.

Equativ will help brands plan native ChatGPT ads in 12 countries. Its Ad Studio tool suggests targeting and creative.

Documents unsealed on 17 September in the New York Times copyright case against OpenAI and Microsoft quote staff at both firms on the risk to news publishers.

Mark Bambury becomes head of OpenAI advertising for Europe, the Middle East and Africa, working from Dublin. He joins from Roblox and takes over a business selling ads in 31 European markets.