AI Detectors.io

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

AI Detectors.io is ranked #2 of 25 in AI content detectors on Inferse. It runs on API, Browser extension, macOS, Web, Windows. There is a free plan. Paid plans start at $0.69/mo.

Compared on AI content detectors

Free plan: Yesaidetectors.io
Paid from: $8.33/moaidetectors.io
Word limit: 25,000 wordsaidetectors.io
Paraphrase detection: Yesaidetectors.io
API access: Yesaidetectors.io
Browser extension: Yesaidetectors.io
Batch scanning: Yesaidetectors.io

Facts

AI detection: The detector provides sentence-level analysis, confidence scores, and an overall AI probability for text associated with major language models.aidetectors.io · 30 Sept 2026
Other tools: The site offers a humanizer, citation verification, plagiarism checking, grammar tools, and watermark removal alongside AI detection.aidetectors.io · 30 Sept 2026
Detection signals: The detector says it checks perplexity, burstiness, n-gram patterns, and stylometric fingerprints.aidetectors.io · 30 Sept 2026
Benchmark: The company reports 95.2% accuracy and 3.1% false positives on its April 2026 benchmark of 500 texts.aidetectors.io · 30 Sept 2026
Language coverage: The detector is trained and benchmarked on English; it returns scores for other languages, which the company says are not covered by its benchmark.aidetectors.io · 30 Sept 2026
API: The API is a REST interface that returns overall AI probability and can provide sentence-level scores.aidetectors.io · 30 Sept 2026
Browser extension: The Chrome extension lets users select text on webpages for AI detection and displays sentence-level results.aidetectors.io · 30 Sept 2026
Microsoft Word: The Word add-in supports Word 2016 and later on Windows and Mac, plus Word for the web, and can produce PDF reports.aidetectors.io · 30 Sept 2026
Integrations: The vendor lists a Chrome extension, a Microsoft Word plugin, and an API as integrations; it says there are no LMS integrations at the moment.aidetectors.io · 30 Sept 2026
Privacy: The privacy policy says submitted text may be processed by third-party AI and infrastructure providers and is retained only as long as needed to deliver and support the operation.aidetectors.io · 30 Sept 2026
Security: The privacy policy says the company uses reasonable technical and organizational safeguards, while noting it cannot guarantee absolute security.aidetectors.io · 30 Sept 2026
Support: The help center says the team usually responds within one business day and provides email support.aidetectors.io · 30 Sept 2026
Intended users: The company describes the service for students, teachers, writers, teams, educators, publishers, and editorial teams.aidetectors.io · 30 Sept 2026