The article shows how much better GPT-4o is at paying attention across its input window compared to GPT-4 Turbo and Claude-3 Sonnet.
We've needed an upgrade to needle in a haystack for a while and this "Needle In A Needlestack" is a good next step! NIAN creates a prompt that includes thousands of limericks and the prompt asks a question about one limerick at a specific location.