I just noticed a bunch of hits to my demo calendar, Sundial:
74.7.227.55 - - [07/Dec/2025:12:12:48 +0100] "GET /1744/06/ HTTP/1.1" 200 1261 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:49 +0100] "GET /1739/07/ HTTP/1.1" 200 1159 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:49 +0100] "GET /1739/10/ HTTP/1.1" 200 1153 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:50 +0100] "GET /1741/03/ HTTP/1.1" 200 1195 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:50 +0100] "GET /1739/04/ HTTP/1.1" 200 1277 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:51 +0100] "GET /1747/08/ HTTP/1.1" 200 1145 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:51 +0100] "GET /1740/09/ HTTP/1.1" 200 1159 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
74.7.227.55 - - [07/Dec/2025:12:12:52 +0100] "GET /1738/10/ HTTP/1.1" 200 1151 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot)"
.... and I was about to write about OpenAI's weasel words on my blog, when I realized... I already did: OpenAI crawling websites!
sigh