AI can't Read
A word is moving in the dots below. Humans see it in about a second. Frontier AI models — given screenshots, frames, even full video — read the decoy and miss the message.
Why this works
No distorted letters, no fire hydrants. The moving word pops out of the noise in under a second, at any age and reading level.
Pause the challenge or download a frame: a frozen image is statistically flat noise. There is no glyph to OCR, so vision-model attacks return nothing.
A near-static decoy word hides in every challenge. Agents doing frame analysis find it, answer confidently — and answer wrong. Motion vectors randomize per challenge.
Frontier models, on the record
We feed every challenge to leading models and publish the transcripts — the guesses, the hallucinated decoys, the reasoning chains that end in the wrong word.
Drop in the snippet
Two elements on the customer page. One siteverify call from your backend to redeem the token. That's the whole surface.
<script src="https://octogate-backend-production.up.railway.app/widget/v1.js" async defer></script>
<div class="octogate"
data-sitekey="ogk_..."
data-api="https://octogate-backend-production.up.railway.app"
data-theme="dark"></div>
<script>
window.OctoGateAI.onSuccess = function (token) {
document.getElementById('captcha_token').value = token;
document.getElementById('signup_form').submit();
};
</script>POST https://octogate-backend-production.up.railway.app/api/siteverify
Content-Type: application/json
{
"secret": "ogs_...",
"token": "<token from widget>"
}
// → { "success": true, "kind": "success", "issued_at": ... }Bleeding from AI-generated abuse? Let's talk.
Design partner slots open. If your signup, comments, or forms are getting flooded by AI-driven traffic, we want to hear about it.