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Airno
What it is
Airno analyzes text and images to estimate whether they were generated by AI, returning a confidence score and a breakdown for each detector. Its web interface accepts up to 50,000 characters, highlights suspicious spans, and supports paraphrase detection. Airno describes seven parallel detectors, including statistical analysis, RoBERTa and DeBERTa classifiers, and linguistic rules. It says text checks cover ChatGPT, Claude, Gemini, LLaMA, and Mistral, while image checks cover DALL-E, Midjourney, and Stable Diffusion through CNN artifact and frequency-domain analysis. Airno reports approximately 85–92% accuracy on unedited AI text samples of 200 or more words, with an 8–15% false-positive rate, and recommends at least 50 words for meaningful results. Text and images are processed in memory and discarded, although anonymous aggregate counts may remain. The free plan costs nothing and allows 100 API requests monthly; Pro costs $19 a month with unlimited requests.
For and against
For
- Text and image detection
- Seven-detector analysis
- Suspicious-span highlighting
- Paraphrase detection
- Free plan with 100 monthly API requests
Against
- Short text produces less reliable results
- Reported false-positive rate is 8–15%
- Free API plan has monthly request limit
- Pro costs $19 a month
The verdict
Airno offers broad text and image detection with web and REST API access. Keep its stated accuracy limits and short-text warning in mind when interpreting scores.
Who it suits
It suits writers, educators, and teams checking possible AI-written or AI-generated visual content. API users can choose between a limited free allowance and Pro support.
Plans and prices
Free
100 API requests / month · text and image detection · ensemble of 7 detectors · community support
Read 7 Oct 2026 · airno.ai
Pro
Unlimited API requests · priority support (< 24h response) · 99.9% uptime SLA · usage analytics dashboard coming soon
Read 7 Oct 2026 · airno.ai
On the record
- Accuracy limits
- Airno reports approximately 85–92% accuracy on unedited AI text samples of 200 or more words and an 8–15% false positive rate.airno.ai · read 7 Oct 2026
- AI systems covered
- Airno says it detects text from systems including ChatGPT, Claude, Gemini, LLaMA, and Mistral, and images from DALL-E, Midjourney, and Stable Diffusion.airno.ai · read 7 Oct 2026
- API access
- The pricing page describes a REST API authenticated with an API key passed in the X-API-Key header.airno.ai · read 7 Oct 2026
- Detection methods
- The site describes seven parallel detectors, including statistical analysis, RoBERTa and DeBERTa classifiers, and linguistic pattern rules.airno.ai · read 7 Oct 2026
- Image analysis
- Airno says its image checks include CNN artifact analysis and frequency-domain inspection.airno.ai · read 7 Oct 2026
- Privacy
- Airno says text and images are processed in memory and discarded after analysis, while anonymous aggregate analysis counts may be retained.airno.ai · read 7 Oct 2026
- Production service
- The Pro plan lists a 99.9% monthly uptime SLA.airno.ai · read 7 Oct 2026
- Purpose
- Airno analyzes text and images to estimate whether they were AI-generated, returning a confidence score and per-detector breakdown.airno.ai · read 7 Oct 2026
- Request limits
- The Free plan allows 100 API requests per calendar month, with the limit resetting on the first day of each month.airno.ai · read 7 Oct 2026
- Short text
- Airno recommends at least 50 words for meaningful analysis and says results on very short text are less reliable.airno.ai · read 7 Oct 2026
- Support
- The Free plan includes community support; Pro includes priority support with a stated response time under 24 hours.airno.ai · read 7 Oct 2026
- Text analysis
- The web interface accepts up to 50,000 characters of text and highlights suspicious spans.airno.ai · read 7 Oct 2026
