Free
Free
3 bonus credits at signup · 10,000 words/month · 1 free credit daily · 500 words/use · Basic AI Detector · no Ultra mode or tone customization
Checked 30 Sep 2026
Plans and prices
AI Detectors.io pricing
Starter (API)
Free
100 requests/month · up to 1,000 words/request · overall AI probability score · community support · API key dashboard
Checked 30 Sep 2026
Developer (API)
$29 a month
5,000 requests/month · sentence-level scores · up to 5,000 words/request · email support
Checked 30 Sep 2026
Premium
$100 a year
500,000 words/month · unlimited daily credits · 25,000 words per AI Detector scan · Advanced AI Detector · Ultra mode · tone customization
Checked 30 Sep 2026
Enterprise (API)
Priced on request
Unlimited requests · higher rate limits · everything in Developer · priority support
Checked 30 Sep 2026