The partnership, according to officials who spoke to ABC News, has been essential to Ukraine defending itself as Russia invaded almost three years ago.

Agencies across the intelligence community and the Defense Department can now use OpenAI’s GPT-4o for the government’s most ...

Nevertheless, the cease-fire he helped devise is the high note on which he might end his long career in public service. The ...

When it comes to widely followed Wall Street money managers, Berkshire Hathaway's (BRK.A 0.64%) (BRK.B 0.94%) CEO Warren ...