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Similar threads surface context and previous solutions while you work a thread. They use AI to detect other threads that are closely related to the one you are viewing, so you cany gather extra information without searching manually. When enabled, you’ll see similar threads in the thread sidebar.

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How similar threads work

  • AI matching - Plain compares the current thread’s content with your historical threads to find those that share a similar theme.
  • Context at a glance - Results are shown in the sidebar, alongside the thread you’re working on.
  • Direct navigation - Click a thread to open it in a new tab.

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Turning on similar threads

Similar threads are off by default and must be enabled in your workspace settings.
  1. Go to Settings → Plain AI.
  2. Toggle Similar threads to On.
  3. Open any thread in Plain to see similar threads appear in the sidebar.