Pangram AI Detector Repeatedly Flags Well-Written Human Text as AI
On September 4, developer aronchick posted multiple complaints about the AI text detector Pangram: pages he wrote using standard English conventions—rule-of-three parallelism, Oxford commas—were repeatedly flagged as AI-generated, and the tool gave no indication of which passages triggered the verdict, prompting him to call it "pure vibes."
Confirmed
- aronchick submitted his last PRFAQ from Amazon, written 12 years ago, and Pangram judged it 100% AI-generated; he joked that the document refined over 124 rounds of human revision "was AI all along"
- Byrne Hobart (via Jeremy Nguyen's repost) noted Pangram's known failure modes, including hearsay false positives and years-old school essays flagged as AI
- mike64t mocked that using the phrase "which is precisely why" alone got a sentence flagged as obviously AI-written
- mattslotnick joked that someone flagged so often by Pangram began believing he himself was an LLM
Why it matters
- The episode highlights systematic false positives against humans who write conventionally well—standard style itself becomes the trigger
- With no flagged locations or explanations, wrongly accused writers have no path to appeal or revise, a serious problem in academic and workplace settings that rely on detector results
2026-09-04 ~ 2026-09-04 · 7 related posts
- Episode 1: Pangram AI Detector Repeatedly Flags Well-Written Human Text as AI(2026-09-04, 7 posts)
- Episode 2: AI Detector Pangram Flags Human Writing as 'AI Slop', Sparking Debate(2026-09-10, 4 posts)
Primary sources
- AI Detector Pangram Flags Perfectly Normal Phrasing as 'Obviously AI-Generated' — mike64_t · 2026-09-03
- AI detector Pangram's known failure modes, including private diary entries — JeremyNguyenPhD · 2026-09-04
- Writer says Pangram AI detector keeps flagging him for using good grammar — aronchick · 2026-09-04
- [source] AI detector Pangram keeps flagging human prose over Oxford commas, user says it's "just vibes" — aronchick · 2026-09-04
- [source] Amazon PRFAQ written 12 years ago flagged 100% AI-generated by detector — aronchick · 2026-09-04
- Joke: writer flagged by AI detector Pangram so often he suspects he's an LLM — matt_slotnick · 2026-09-04
1 near-duplicate retellings: aronchick