Twitter is to keep the 140-character limit for tweets, chief executive Jack Dorsey has announced.
"It's staying. It's a good constraint for us and it allows for of-the-moment brevity," Dorsey told NBC on Friday (local time) when asked whether the limit was staying.
Technology news website Re/code reported in January that Twitter was building a new feature that would allow users to post tweets as long as 10,000 characters.
Twitter never confirmed that it was considering 10,000-character tweets.
A Twitter spokesman on Friday declined to elaborate on Dorsey's comments, other than to say "Jack's comments stand on their own".