The current trial is looking at remedies to curtail Google's dominance in online search, as the recent explosion in generative AI services such as ChatGPT has expanded the market. Newer AI models search the internet to improve results and reduce hallucination, which has been a problem from developers since chatbots started to become popular. Last year, OpenAI offered to do a deal with Google which would have integrated Google search results into ChatGPT, according to Mr Turley's testimony. But he says their offer was rejected. "We have no partnership with Google today," Mr Turley said, according to Reuters. OpenAI does however have a partnership with Microsoft, which makes the Bing search engine and Edge browser.

The crisis at artificial intelligence firm OpenAI deepened this weekend amid a reported exodus of senior staff in the wake of boss Sam Altman's mystery firing. OpenAI, the company behind the ChatGPT bot, abruptly ousted Altman on Friday for allegedly misleading the board. In a statement, it said it had lost confidence in its 38-year-old co-founder after "a deliberative review process" concluded he had not been "consistently candid in his communications", without specifying how. Shortly afterwards, Greg Brockman, the company's president, announced he had resigned. "Sam and I are shocked and saddened by what the board did today… We too are still trying to figure out exactly what happened," he wrote on X.