For the "which image is..." type captchas, there is always an option to "refresh" the captchas and get a different challenge. After 1 or 2 refreshes, you almos

For the "which image is..." type captchas, there is always an option to "refresh" the captchas and get a different challenge. After 1 or 2 refreshes, you almost always get a street sign challenege. I was playing around with breaking Google's captchas a few weeks back and tensorflow's basic image recognition demo is actually already good enough that it too can almost always correctly identify which of the 9 or 12 images contain street signs. So I think that's a good start- exploiting the fact that Google favors showing street signs, and that in many cases you can already programatically identify street signs with image recognition. Obviously it's not perfect or Google wouldn't need to farm users to aid in improving image recognition , but it's good enough where you can break the captcha roughly 50% of the time.