AICheck · Free AI Detector
AI Content Detector
Paste text or upload an image and get an honest AI-likelihood score in seconds — no signup for your first checks.
We don't pretend to be a lie detector. Detectors get things wrong, so we show a likelihood with a clear caveat instead of a false "guilty" verdict. That honesty is the point.
How it works
- Paste or upload. Drop in an essay, email, article, or an image you're unsure about.
- We analyze it. Your input runs through a hosted detection model and returns a probability it was AI-generated.
- You get a likelihood. A clear percentage and band — likely human, uncertain, or likely AI — plus what that does and doesn't mean.
Pricing
Free
$0
3 checks every day. No signup, no card.
Pay as you go
$2.99
100 checks. No subscription, credits don't expire.
Unlimited
$5.99/mo
Unlimited text & image checks. Cancel anytime — cheaper than the big names.
Frequently asked questions
How accurate is this AI detector?
No AI detector is perfectly accurate — that's why we report a likelihood, not a verdict. Detectors can flag human writing as AI (false positives) and miss lightly edited AI text. Use the score as one signal, never as proof on its own.
Can it detect ChatGPT and GPT-4 text?
It scores text for patterns common to large language models like ChatGPT and GPT-4. Longer samples (several sentences or more) produce a more reliable signal than short snippets.
Does it work on AI images?
Yes. Switch to the image tab to upload a JPG or PNG and get an AI-likelihood score for AI-generated or manipulated images.
Is it free?
You get 3 free checks every day with no signup. Need more? A 100-check pack is $2.99, or go unlimited for $5.99/month — cheaper than the major incumbents.