A White House official said the expanded bilateral meeting broke at 5:05 p.m. local time (11:05 a.m. ET), after a little more than an hour.

The two men spent two hours and 38 minutes meeting together in total, according to the White House -- shorter than the four to five hours the Biden administration said it expected it to last.

Biden's ride, the Beast, is staged outside the Villa.

The second meeting was going to be broken into two parts -- with a break splitting up the two parts -- but the official said that it was all just one long part.

It appears the leaders are done meeting for the day.

White House officials have significantly downplayed the prospect of a prisoner swap for two U.S. Marine veterans, Trevor Reed and Paul Whelan, being held in Russia, ahead of the meetings.

"That's certainly something the Russians have been pushing for," said ABC News Chief White House Correspondent Cecilia Vega. "They have basically said this could encourage the Kremlin to target more Americans unfairly like they believe these two Americans there were targeted."

Russian officials have indicated they would like to trade Reed and Whelan for two Russians held in the U.S.: Viktor Bout -- one of the world's most notorious arms dealers and dubbed "the Merchant of Death" — and also Konstantin Yaroshenko, a pilot currently serving a lengthy jail sentence for a drug smuggling conviction.

Whelan's family overnight released an audio message from him recorded from the prison camp in central Russia where he is held. In it, he appealed to Biden to help free him.

A White House official confirmed the expanded bilateral meeting started about an hour ago, at 4 p.m. local time (10 a.m. ET).

ABC News Correspondent Karen Travers said the summit is about setting the U.S.-Russia relationship on a new path forward to a more stable, predictable relationship.

"In terms of the stakes, it's been striking to hear officials on both sides say over the last few days heading into this summit that there are very low expectations for some major breakthrough between President Biden and President Putin," Travers said. "This is all about starting a conversation."

She also noted how different this meeting looks from President Donald Trump's encounter Putin in Helsinki in 2018, and the two took questions standing side-by-side at a joint news conference.

ABC News Chief Global Affairs Correspondent Martha Raddatz highlighted the "incredible" body language seen in Biden and Putin's face-to-face meeting and said the images captured there already make the summit a success for Putin.

"I think President Putin, you saw those pictures of president Putin with President Biden. That's essentially what he wants right there," Raddatz said. "The relaxed President Putin sitting back in his chair, Joe Biden looking relaxed as well. All of this is so rehearsed."

"They know the world is looking at those pictures, especially Vladimir Putin. He wants to be on the world stage," she added.

Even with Putin denying Russian involvement in recent U.S. cyberattacks, his refusal to discuss imprisoned opposition leader Alexey Navalny with Biden going into the meeting, and the two leaders still likely to air their grievances in dueling press conferences later, Raddatz said, since relations are so low, any progress will be a win.

"I think because they have lowered the bar so far, but it's still a bar, that any progress will be seen as a win according to Joe Biden and probably according to Vladimir Putin, too," she said.

Putin indicated on Friday that he'd be willing to talk about a potential "prisoner swap" between two U.S. Marine veterans, Trevor Reed and Paul Whelan, for Russians being held in the U.S.

Russian officials have indicated they would like to trade Reed and Whelan for two Russians held in the U.S.: Viktor Bout -- one of the world's most notorious arms dealers and dubbed "the Merchant of Death" — and also Konstantin Yaroshenko, a pilot currently serving a lengthy jail sentence for a drug smuggling conviction.

David Whelan told ABC News Live Prime anchor Linsey Davis on Tuesday that his brother, who is manufacturing clothes in a Russian labor camp, is a hostage and that it's difficult to know when that might come to an end.

"I'm always hopeful that he'll be released, but I don't have any idea what the timeline might be," David Whelan said. "The Biden administration has been very outspoken about Paul's case and we've appreciated that as a family. It's given us hope and it's given him hope."

"But he's still a hostage and there's no evidence yet that the Russians are willing to exchange in any exchange for him," David Whelan continued. "They said last week -- the Russian government did — that they would not consider Paul for exchange."

Whelan's family released an audio message from him on Monday recorded from the prison camp in central Russia where he is held. In it, he appealed to Biden to help free him.

"Please bring me home to my family and my dog Flora where I belong. Thank you, Mr. President, for your commitment to returning me home and bringing this deplorable hostage situation to an expedient conclusion," Whelan said in the recording that his family said was made on May 30.

-ABC News' Haley Yamada and Patrick Reevell