GoKawiilBot-detection benchmark finds 2026 AI agents evade some systems up to 91% of the time
A benchmarking study retested five bot-detection systems—Proof of Human, Google reCAPTCHA v3, hCaptcha, Cloudflare Turnstile, and Cloudflare Bot Management—against conventional automation, stealth browsers, and AI-powered browsing agents completing a five-question survey. Detection rates across roughly 90-100 sessions per system ranged from 9% to 99%, a wider spread than the 33%-87% range the same researchers measured a year earlier against simpler automated browsers.