Slopcore is X’s name for a new kind of music video. Anthropic’s Claude Opus 5.5 largely writes, directs, animates and edits them on its own, often working twelve hours or more while their creator sleeps.
The word began as an insult for careless artificial intelligence content. Now it’s a badge.
Here’s how it works, and ten videos worth watching.
Where slopcore started
It all started with brushstrokes. On Sep 22, @other__reality posted a video that looks hand painted, every stroke drawn in code by Claude.
The soundtrack? A song about the probability of doom, the odds that advanced machines go badly for us.
The next day, @donaldjewkes remade it with barely any effort. “I spoke to my computer for 5mins, claude worked for 12 hours, and I woke up to this”, he wrote.
Then things got big. On Sep 25, @anabology “Gave Opus 5.5 donald’s prompt, Midjourney, and a moodboard” and let it run for twelve hours.
The five minute film passed 20 million views by Oct 24. His reply underneath: “Slopcore is the future of art.”
But there’s a twist. A day earlier, @BishPlsOk had pictured a slopcore “embracing the rough edges as intentional aesthetic instead of smoothing them off, and not passing off authorship as human.”
That’s the heart of the genre. Nobody pretends a person animated every frame.
How a slopcore video gets made
The human part takes minutes. A creator speaks or types a brief, maybe adds a song and a moodboard, and steps away.
Claude does the rest. It writes the concept, codes the visuals, calls image and video generators and times every cut to the beat.
Some runs even check their own work by rendering frame sheets to review.
The usual toolkit:
- Music: Suno.
- Stills: Midjourney.
- Motion: Seedance, Kling and Wan.
- Modeling: Blender and Meshy.
- Access: fal, one account for many models.
The best part? You don’t need to be an engineer. @javif4_ introduced his first song with “I can’t code. I just talk to machines.”
Direction still matters, though. For Macrohard: Windows XP, anabology says “I told it to imagine it was recording the music video from a Windows XP desktop”.
One sentence. A whole visual world.
Claudia, the open character of slopcore
Meet the star of anabology’s films: Claudia. Black bob, one clay orange streak, star clip, headset microphone.
On Oct 7 he released a kit for “A-tier slopcore”: a Model Context Protocol server, an agent skill, a wiki and character sheets.
Here’s the deal: anyone may make work with her, “commercial or not”, and a credit is “appreciated, not required”.
The pitch: “She is open to musicians the way Hatsune Miku is open to producers”. The rules: she stays herself, always reads as an adult, and creators “Say what’s generated.”
Why slopcore is worth your screen time
Think of it as a spectator sport: each video shows what a model did with a night alone, rough edges included.
It’s the same family of coding agents now rebuilding blockbuster games in a browser, turned toward something more personal.
Want to try it? Pick a song, gather a moodboard, describe the film out loud for five minutes, then let Claude work overnight.
In the morning, give notes and run it again.
One warning: quality varies from run to run. That unpredictability is exactly what keeps people coming back.
Watch: ten slopcore videos that defined the trend
These are ten standout posts in the trend that their creators say were made with Claude.
1. Where it began: the brushstroke video that kicked off the chain.
2. The breakout that gave slopcore its name.
3. The Clodyssey, the twelve hour sequel.
4. donald’s five minute spoken prompt, the template everyone copied.
5. Macrohard: Windows XP, eighteen hours of Claude in one film.
6. Universal High Income, anabology’s hit from Oct 22.
7. Moritz Kremb’s video about being European. Expect affectionate stereotypes.
8. Bright Mirror’s optimistic answer to the doom anthem.
9. ANY DAY NOW (The Robots Are Coming), Javi F’s first song, from a self described non coder.
10. I’m Your Slop (I’m Your Art), Javi F’s Berlin rave meets opera: four days of talking with Claude, 282 clips generated, 99 chosen.
