Recommendation SystemVerified
Reviewed and published by trentmaziarz, April 22, 2026. Discovered and drafted by our automated research pipeline.
Bluesky uses an algorithmic recommendation system to power its Discover feed, surfacing posts based on a user's engagement history, social graph proximity, and network-wide trending signals.
Details
Launched in July 2023 as a replacement for the simpler 'What's Hot' feed, the Discover feed mixes trending content with posts from accounts a user follows and accounts near their social graph. Bluesky's official blog states the feed is 'customized for what you like to see.' Since May 2024, users can further tune the feed using 'Show more like this' and 'Show less like this' controls on individual posts. In October 2025, Bluesky began testing a 'social neighborhoods' ranking layer that prioritizes replies from people a user already interacts with or is likely to know. Bluesky confirmed in November 2024 that the Discover feed uses AI, but stated it is not a generative AI system trained on user content.
Products affected
Bluesky app
Sources & Evidence
News Article
Cite this record
Trace Foundation. (2026). Bluesky: Bluesky uses an algorithmic recommendation system to power its Discover feed, surfacing posts based on a user's engagement history, social graph proximity, and network-wide trending signals (data as of 2026-04-22) [Data set record]. AI Trace. https://www.aitrace.org/r/practice/d8609c09-040a-400b-bb4f-8afb75dd8866. Accessed September 10, 2026.
- Stable link
- https://www.aitrace.org/r/practice/d8609c09-040a-400b-bb4f-8afb75dd8866
- Data as of
- April 22, 2026
- Last verified
- April 22, 2026
Other practices by Bluesky
ProductivityBluesky tested Attie, a standalone AI app that allows users to build personalized social media feeds by typing plain-language descriptions, without needing to write code.ModerationBluesky deployed an automated system that assesses the titles and descriptions of user-created lists for overt toxicity when a list is reported, automatically applying a hidden label if violations are detected.ModerationBluesky uses automated detection systems — including rules engines and machine learning tools — to identify and act on spam networks, fake accounts, and bot behavior in real time across the platform.
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