(COMBO) This combination of pictures created on June 09, 2026 shows (L/R) OpenAI CEO Sam Altman in Seattle, Washington on May 21, 2024 and Anthropic CEO Dario Amodei in New Delhi on February 19, 2026. ChatGPT-maker OpenAI on June 8, 2026, took the first step toward going public, one week after arch-rival Anthropic announced its own filing, as both companies look to raise the massive sums needed to expand. In a social media post, the Sam Altman-led company said it had confidentially submitted an S-1 registration statement to US securities regulators but had "not decided on timing yet" for any potential debut. (Photo by Jason Redmond and Ludovic MARIN / AFP via Getty Images)