I guess this is meant to be more sharing than a question.
I pasted some code into 3.5 and it runs. I pasted the same into GPT-4 and it gave me the error “The message you submitted was too long, please reload the conversation and submit something shorter.”
Would be nice if it was announced, or maybe I missed the announcement. Using Plus though.
Did some experiments.
Found that ChatGPT-4 input token limit is around 10,244-10,998.
ChatGPT-3.5 is at around 21,340-21,486.
However, this is with code, which has a lot of whitespace which often counts as characters.