why does Originality.AI say everything is ai — The Straight Answer
You're asking: "why does Originality.AI say everything is ai?" Originality.AI is one of several AI detection tools used by schools, publishers, and employers. Like all current detectors, it works by estimating probability, not certainty — which means false positives on human-written text are a documented limitation across the entire category.
Direct answer
If you searched "why does originality.ai say everything is ai", you likely need a practical next step. Originality.AI flags are common enough that many schools now require human review before any academic penalty — the score alone is rarely sufficient evidence.
What to evaluate
Understanding How AI Detectors Actually Work
These are the signal criteria that matter — not features that look impressive in a product tour.
Perplexity Scoring
Detectors like Originality.AI measure how statistically predictable each word choice is. Very low unpredictability is treated as a signal of AI generation, though formal human writing can also score low — directly relevant to "why does originality.ai say everything is ai".
Burstiness Analysis
Human writing tends to vary sentence length more than AI output. Detectors flag unusually uniform sentence structure as a possible AI signal.
Pattern Matching
Some detectors, Originality.AI included, compare structural and stylistic patterns against known AI model outputs, which can produce false matches on formulaic human writing.
Known Limitations
Independent studies have found false-positive rates for tools like Originality.AI vary significantly depending on writing style, subject matter, and whether English is the writer's first language.
Your Questions, Answered
Straightforward answers — no hedging.