Sup AI (https://sup.ai) queries ChatGPT, Claude, and Llama from an instruction to come up with an improved version of their response. URL sharing. Unlimited.

Tests:
– AI education: https://sup.ai/chats/cm5h5fu3k00079c1bfqujqwax…
– Training: https://sup.ai/chats/cm5h5ka8900099c1bn3a0r6ck…