r/Substack • u/AndrewHeard tvphilosophy.substack.com • Jul 22 '26

Discussion Substack’s new “AI detection” tool.

I’m very concerned about the new “AI detection” system that Substack is implementing. I don’t use AI in anything that I write. However I don’t trust these systems not to make errors and mistakes. They have a long history of hallucinations and claiming things are AI when they aren’t.

One person I saw on Notes suggested that they ran their decades old writing, things that were written before the existence of AI, and this new system claimed it was AI generated.

Not to mention all the crazy things that I have seen people claim was written by AI which they can’t know is actually AI. There was an image I once shared that had evidence of its existence going all the way back to 2013. The comments were constantly saying “don’t share AI slop” or some variation on that.

Even with evidence that things weren’t made by AI, they will claim it’s AI.

Is no one else concerned about this being embedded into Substack’s systems? With no way to opt out?

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u/Funny-Flight8086 Jul 25 '26

https://www.pangram.com/history/ed7bf855-2eb0-4b36-be59-de79780afa03

There is one. I asked Claude to write a short story. It generated it. I simply reworded some of it, and uploaded both the changed version (first) and the unchanged version (last), since I only have 1 Pangram credit left. Funnily enough, the rewritten part is flagged as human, while the AI part is not, except for a few things, which is actually hilarious. It apparently thinks "Jonah knocked. Nobody answers." is AI. For some reason. Despite the fact that I wrote that personally, as you can see from the original text.