Genuine Captcha – Open-source guardian of online privacy to prove humans exists
genuine-captcha.io
genuine-captcha.io
I'm not capable of judging it myself (*) but look forward to people who are able to review and tell people like me whether it's really as good as it claims.
(*) Though I will note that the 18+9 example it gave me a) successfully tricked ChatGPT's image recognition into believing that 18 was the only number anywhere in the image and b) while it's a simple sum for me, there is a non-zero percent of humans who do have difficulty when it comes to even the simplest of sums.