The Cuban government said the releases were a humanitarian gesture during Holy Week. It was not clear if they were related to ongoing negotiations between Cuba and the United States.

OpenAI said the deal would help it “create a space for a real, constructive conversation about the changes A.I. creates.”

President Trump is “on a bit of a firing spree,” Jimmy Fallon said on “The Tonight Show” on Thursday, adding, “Ironically, the only staffer who has immunity is RFK Jr.”