Tried brainstorming my company business plan with gpt4 turbo and with Claude 3 opus. Gpt4 turbo had clear understanding difficulties and kept saying things maybe relevant to similar companies but obviously unrelated to my own.

Claude 3 opus was much more focused on product/features/roadmap I described.

I asked Claude 3 to ask me question to help develop the plan and it asked me good questions. However for the actual plan it was derivative and didn’t actually propose anything useful. When I asked it to rethink certain aspects, Claude 3 started to also get confused and instead of talking about things specifically mentioned in the beginning of the convo it focused on something more generic.

Overall I don’t think either are good at being a full brainstorming partner, but Claude 3 opus does have a clear edge.