Glenn Thrush in the White House briefing room in February. The Times said he would no longer cover the White House when he returns from his suspension.

The New York Times said on Wednesday that Glenn Thrush, one of the paper’s most prominent political reporters, would remain suspended until late January and then be removed from the team covering the White House after he faced allegations of inappropriate sexual behavior.

The decision came a month after the website Vox published a report that contained allegations from four female journalists of inappropriate behavior by Mr. Thrush. After learning Vox planned to run its article, which was published on Nov. 20, The Times began an investigation into Mr. Thrush’s conduct.

The inquiry was led by Charlotte Behrendt, a lawyer in the Times newsroom, and involved interviews with more than 30 people in New York and Washington, both inside and outside The Times, according to a person briefed on the process. Ms. Behrendt compiled a report with her findings that was reviewed by Dean Baquet, the executive editor, and a group of top editors.

Mr. Thrush was told of the decision on Wednesday during a meeting with Mr. Baquet.

In a statement, Mr. Baquet said the company had completed its inquiry and found that Mr. Thrush had “behaved in ways that we do not condone.”

“While we believe that Glenn has acted offensively, we have decided that he does not deserve to be fired,” Mr. Baquet said.

Mr. Baquet also said Mr. Thrush was undergoing counseling and substance abuse…