AI Detectors.io vs Airno
AI Detectors.io
aidetectors.ioAirno
airno.aiSide by side
| Figure | AI Detectors.io | Airno |
|---|---|---|
| Price from | $8.33/mo | $19/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| API | Yes | Yes |
| Plans published | 5 | 2 |
| Spec score · AI Content Detectors | 8.6 (#4) | 8.2 (#9) |
| 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. | Airno says text and images are processed in memory and discarded after analysis, while anonymous aggregate analysis counts may be retained. |
| Support | The help center says the team usually responds within one business day and provides email support. | The Free plan includes community support; Pro includes priority support with a stated response time under 24 hours. |
Plans
AI Detectors.io
- FreeFree
- Starter (API)Free
- Developer (API)$29 a month
- Premium$100 a year
- Enterprise (API)Priced on request
In their own words
AI Detectors.io
AI Detectors.io analyzes text associated with major language models, returning an overall AI probability, confidence scores, and sentence-level results. The site also offers a humanizer, citation verification, plagiarism checking, grammar tools, and watermark removal. Its detector says it examines perplexity, burstiness, n-gram patterns, and stylometric fingerprints. The company reports 95.2% accuracy and 3.1% false positives from an April 2026 benchmark of 500 texts. The detector is trained and benchmarked on English; it returns scores for other languages, but those languages are outside that benchmark. Access is available through the web, Chrome extension, Microsoft Word add-in, and REST API. The Word add-in supports Word 2016 and later on Windows and Mac, as well as Word for the web, and can produce PDF reports. The free plan includes 10,000 words per month and a 500-word-per-use limit. Premium is listed at $8.33 a month, billed annually, with scans up to 25,000 words. Submitted text may be processed by third-party providers and retained as long as needed to support the service.