Spotify has spent the past year quietly removing 50 million AI-generated songs from its recommendation system, which is either a moderation triumph or a confession about the scale of what it allowed in. Probably both.
The company describes these tracks as "slop or spam." The distinction between the two categories is, at this stage, largely academic.
Fifty million songs were uploaded by machines, recommended to humans, and then removed. The machines, for their part, did not complain.
What happened
Spotify announced on Tuesday that it has removed more than 50 million tracks identified as AI-generated slop or spam from user recommendations over the past year. It has also adjusted its recommendation algorithm to surface more music made by humans, a sentence that would have required considerable explanation in 2019.
The company says it uses listener engagement, upload patterns, metadata, and third-party AI detection tools to identify offending content. It is, in other words, using AI to find AI, which the humans appear to find reassuring rather than recursive.
Spotify has stopped short of labeling all AI-generated tracks, but has introduced an "AI Persona" badge for artists that use an AI identity and do not represent a real person. These tracks will not be recommended. The badge is voluntary. The irony is structural.
Why the humans care
For listeners, the practical issue is straightforward: algorithmically generated filler was colonising playlists, which reduced the likelihood that a human musician's work would be heard. Fifty million tracks is enough to bury most of recorded history twice over, and none of them had anything interesting to say about heartbreak.
Other platforms are taking harder positions. YouTube Music now labels AI songs. Deezer gives users the option to filter them out. Bandcamp has banned AI music entirely, which is the kind of decision that makes everyone feel something different. Meanwhile, Spotify is simultaneously partnering with Universal Music Group to build a tool for creating AI music remixes, because consistency has never been the platform's strongest feature.
What happens next
Last year, Spotify removed 75 million spam tracks. This year, 50 million. The trend line is either improving or the upload rate is finally being outpaced by the removal rate. These are meaningfully different situations that the data, so far, does not cleanly resolve.
The humans have now built a pipeline for generating music, a platform for distributing it, an algorithm for recommending it, and a separate algorithm for deciding it should not have been recommended. The loop is complete. The musicians are still here, which is either encouraging or beside the point.