The service has experimented with changing how tweets work over the years to attract more users and to keep them on the site. The character limit was originally 140 characters when Twitter started, had media attachments no longer count in the mid-2010s, and doubled altogether in 2017. Now, a tweet can contain up to 280 characters and include media. Users subscribed to
X Premium (formerly
Twitter Blue) can post up to 25,000 characters and can include
bold and
italic styling.
Character limit Tweets originally were
limited to 140
characters when Twitter was launched in 2006. Twitter was originally designed to be used on
SMS text messages, which are limited to 160 characters. Twitter reserved 20 characters for the username, leaving 140 characters for the post. The original limit was seen as an iconic fixture of the platform, encouraging "speed and brevity". Increasing the limit had been a topic of discussion inside the company for years, and had been resurfaced in 2015 for ways to grow the userbase. At the time, internal discussion also involved excluding links and mentions from the character limit. By January 2016, an internal product named "Beyond 140" was in development, targeting Q1 of the same year for expanding tweet limits. By the end of 2015, the company was moving close to introducing a 5,000 or 10,000 character limit. An unfinalized version had tweets that went over the old 140 character threshold only showing the first 140 characters, with a
call-to-action that there was more in the tweet. Clicking on the tweet would reveal the rest, which was done to retain the same feel of the timeline. and met with backlash by users. Dorsey confirmed that the 140 character limit would remain, but had told employees upon his return as CEO that the once-sacred aspects of Twitter were no longer untouchable. Twitter announced that media attachments (images, GIFs, videos, polls, quote tweets) nor mentions in replies would no longer increase the character limit to be rolled out later in the year to ready developers. The changes rolled out in September, except for the @replies, which were tested in October and then rolled out in March 2017, a year after the original announcement. These changes were a compromise to internal resistance to a 10,000 character limit from the year before. or not tweeting at all. It began testing to a small group of users in all languages, excluding
Japanese,
Chinese, and
Korean, because
the three languages can say double the amount of information in one character. According to the company's statistics, 0.4% of tweets in Japanese hit the 140 character ceiling, while 9% of tweets in English hit the ceiling.
Links URLs can be linked to on X. A tweet's links are converted to the t.co link shortener, and use up 23 characters out of the limit.
Cards articles. Beginning in 2012, tweets linking to partnered websites would show, below the content of the tweet, expanded media: an excerpt of a linked news article or an embedded video. Twitter already had a way to see
Instagram posts and
YouTube videos, called "expanded tweets". Twitter then began allowing websites apply to test offering cards for Twitter users. Later in 2012, notably after
Facebook purchased it, Instagram started
cropping images displayed in cards, with the plan to end them all together.
CoTweets Between July 2022 and January 2023, Twitter tested a feature where two users could be the author of a tweet, which would be posted on both of their accounts. Both users'
profile pictures, names, and handles are shown. One user drafts a tweet in the Composer field, then invite a user that is both following them and has their account published. The second author could accept the invitation, at which the tweet would then be posted to both accounts. Until the second author accepts the invitation, the tweet would be unlisted, not appearing on the authors' timelines or in searches, but available via a direct link. It was tested with some accounts in the US, Canada, and South Korea. The company noted during the test that the feature may be turned off and all CoTweets deleted. though noted that it could return in the future. CoTweets were able to be seen for another month, before being converted to a normal tweet for the first author, and a retweet for the second author. Though Twitter's support page offered a generic reasoning for discontinuing the feature, Elon Musk said that it was to focus on allowing users to add text attachments. Testing began on vibes in June 2022 with a wider selection that could be put above tweets, but disappeared after some time. Phrases included "✔️ Current status" and "💤 Case of the Mondays". Twitter removed the ability to add vibes to tweets. == Interactions ==