(COMBO) This combination of file photographs created on September 13, 2026 shows (From Top to Bottom) the logo of the US artificial intelligence safety and research company Anthropic displayed in Brussels on June 10, 2026, the logo of US artificial intelligence company OpenAI displayed at the campus of Tel Aviv University in Tel Aviv on June 5, 2023 and the logo of Grok, a generative artificial intelligence chatbot developed by US artificial intelligence company xAI in Brussels on January 12, 2026. Anthropic CEO Dario Amodei on September 12, 2026, called on artificial intelligence (AI) firms to slow down the development of the powerful technology, amid mounting worries over the risks of "superintelligent" computer systems. OpenAI chief Sam Altman and xAI boss Elon Musk said later on September 12 they agree with Amodei on the need to tap the brakes on the development of artificial intelligence, after several worrying incidents. (Photo by Nicolas TUCAT and JACK GUEZ / AFP via Getty Images)