Sam Altman, co-founder and CEO of OpenAI, testifies before a Senate committee hearing on Capitol Hill in Washington on May 8, 2025. Credit: AP Photo/Jose Luis Magana, File The two artificial intelligence startups behind rival chatbots ChatGPT and Claude are bracing for an existential showdown this year as both need to prove they can grow a business that will make more money than they're losing. The fiercest competition between the two AI developers, along