OpenAI chief executive Sam Altman is donating $1 million to the inauguration fund of US president-elect Donald Trump.Altman joins other technology companies and executives who seek to establish better relationships with the incoming administration.Altman's donation follows similar contributions from Facebook and Amazon, each donating $1 million to the fund.Altman is in a legal dispute with Elon Musk, one of OpenAI's founders, over allegations that the organization has deviated from its original mission.