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Meta Tests Long-Form Text Attachments on Threads

The experiment debuts basic formatting with media and links currently unsupported.

Overview

  • Meta confirmed it is testing a feature that lets users attach long-form text to a post, after app researcher Radu Oncescu surfaced it and users like Roberto Nickson and Justin Mixon shared examples.
  • The attached text appears as a gray box preview that opens into a scrollable full-screen view on mobile and a dedicated window on the web.
  • Current styling supports italics, bold and underline, with no embedded media or hyperlinks in this test phase.
  • The test can be viewed by all users and appears to be available outside any paid tier, with Meta saying it plans to expand access but without a timeline.
  • Screenshots indicate these posts do not federate to ActivityPub services, raising interoperability questions as Threads positions the feature against X’s paid Articles.