OpenAI CEO Sam Altman speaks next to SoftBank CEO Masayoshi Son after U.S. President Donald Trump delivered remarks on AI infrastructure at the Roosevelt room at White House in Washington, U.S., January 21, 2025. Carlos Barria | ReutersOpenAI on Tuesday announced its biggest product launch since its enterprise rollout. It's called ChatGPT Gov and was built specifically for U.S. government use.The Microsoft-backed company bills the new platform as a step beyond ChatGPT Enterprise as far as securi...