The tone of congressional hearings involving tech trade executives lately can greatest be described as antagonistic. Mark Zuckerberg, Jeff Bezos and different tech luminaries have all been dressed down on Capitol Hill by lawmakers upset with their firms.

However on Tuesday, Sam Altman, the chief government of the San Francisco start-up OpenAI, testified earlier than members of a Senate subcommittee listening to and largely agreed with them on the necessity to regulate the more and more highly effective A.I. know-how being created inside his firm and others like Google and Microsoft.

The boyish-looking Mr. Altman traded in his typical pullover sweater and denims for a blue swimsuit and tie as he provided a free framework to handle what occurs subsequent with the fast-developing techniques that some consider might basically change the economic system.

In his first testimony earlier than Congress, Mr. Altman implored lawmakers to manage synthetic intelligence as members of the committee displayed an understanding of the know-how, underscoring the deep unease felt by technologists and authorities over A.I.’s potential harms.

“I believe if this know-how goes fallacious, it may well go fairly fallacious. And we wish to be vocal about that,” he mentioned. “We wish to work with the federal government to forestall that from taking place.”

Mr. Altman made his public debut on Capitol Hill as curiosity in A.I. has exploded. Tech giants have poured billions of {dollars} and energy into what they are saying is a transformative know-how, even amid rising issues about A.I.’s position in spreading misinformation, killing jobs and at some point matching human intelligence.

That has thrust the know-how into the highlight in Washington. President Biden this month mentioned at a gathering with a bunch of chief executives of A.I. firms that “what you’re doing has monumental potential and massive hazard.” Prime leaders in Congress have additionally promised A.I. laws.

The looks of Mr. Altman, a 38-year-old Stanford College dropout and tech entrepreneur, was his christening because the main determine in A.I. He was joined on the listening to by an government from IBM and a well known professor and frequent critic of A.I. know-how.

Mr. Altman mentioned his firm’s know-how might destroy some jobs but in addition create new ones, and that it is going to be necessary for “authorities to determine how we wish to mitigate that.” He proposed the creation of an company that points licenses for the creation of large-scale A.I. fashions, security laws and checks that A.I. fashions should go earlier than being launched to the general public.

“We consider that the advantages of the instruments we’ve got deployed to date vastly outweigh the dangers, however making certain their security is important to our work,” Mr. Altman mentioned.

However after almost three hours of questioning in Tuesday’s listening to, it was unclear how lawmakers would reply to the decision to manage A.I. The observe document of Congress on tech laws is grim. Dozens of privateness, speech, and security payments have failed due to partisan bickering and fierce opposition by tech giants.

Lawmakers introduced up the thought of an impartial company to supervise A.I., guidelines that pressure firms to reveal how their fashions work and the info units they use, and antitrust guidelines to forestall firms like Microsoft and Google from monopolizing the nascent trade.

Lawmakers had been usually pleasant towards Mr. Altman, thanking him for his personal conferences with them and for agreeing to seem within the listening to. They approached him as an educator.

Senator Richard Blumenthal, Democrat of Connecticut and chairman of the Senate panel, mentioned the listening to was the primary in collection to study extra in regards to the potential advantages and harms of A.I. to ultimately “write the principles” for it. He additionally acknowledged Congress’s failure to maintain up with the introduction of latest applied sciences up to now.

“Our objective is to demystify and maintain accountable these new applied sciences to keep away from a number of the errors of the previous,” Mr. Blumenthal mentioned. “Congress failed to satisfy the second on social media.”

It is a growing story. Verify again for updates.