How to post to Bluesky and Threads at the same time

Bluesky and Threads do not take quite the same post. Bluesky stops text at 300 characters while Threads allows 500, and the media or thread rules differ too.

Bluesky vs Threads: what's different

	Bluesky	Threads
Character cap	300	500
Images per post	4	10
Needs media	No	No
Long text becomes a thread	Yes	Yes
Comments inbox in fanout	Yes	Yes
Analytics in fanout	No	Yes

What fits both

Text: while both networks use the master draft, the counter holds you to the stricter cap, 300 characters (Bluesky). Give Threads its own tab to use its full 500.
Images: the lower cap wins, so 4 (Bluesky) for a shared set, against 10 on Threads.
Media: neither network requires it, so text-only posts are fine. One video per post, and it cannot be mixed with images.
Over-limit text: it becomes a reply thread on both, up to 10 posts each. Because the caps differ, the part counts differ too.

Post to both in fanout

Connect Bluesky and Threads. Each login happens on the network's own permission screen.
Open the composer, write the master draft and select both accounts.
Check each tab. Both inherit the master text until you edit one; AI tailoring suggests a version for each, which you review before anything is published.
Attach media once. The same files go to both networks that accept them.
Publish now, or pick a date and time to schedule it to both.

Tips for this pair

A 1,000-character text becomes 4 posts on Bluesky and 3 posts on Threads, split at sentence breaks.
Analytics cover Threads but not Bluesky.

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Frequently asked questions

Can I post the same thing to Bluesky and Threads?

Yes, if it fits both. Write one master draft, select both accounts, and fanout publishes a native post to each. The master text must fit the stricter cap of 300 characters, or you give Threads its own version.

What's the character limit when posting to Bluesky and Threads?

Bluesky allows 300 characters and Threads allows 500. While they share the master text, the composer uses the lower one, 300.

Do Bluesky and Threads need images?

Neither requires media. Image caps are 4 on Bluesky and 10 on Threads.

Can I schedule to Bluesky and Threads at once?

Yes. Pick a date and time in the composer and the post is scheduled to both accounts together, or publish now instead.

Schedule posts to Bluesky · Schedule posts to Threads · Bluesky character counter · Threads character counter · Cross-post to multiple social networks · Thread splitter

More pairs: X and Bluesky · X and Threads · Instagram and Threads

Last updated 2026-10-25.