The most important thing about Sonnet 5.5 is that it's now the model that powers the free tier on claude.ai - so all of this stuff can be done by free users
ChatGPT's free tier is still GPT-5.6 Luna, which is a lot less capable
This doesn't make sense there is no create new chat in grokbot. As I understand from you tweet the context window is exceeding it's use and new session resets the context window. Not here