The assumption that LLMs will continue to require huge investments isn't necessarily true. if GPT-4 turns out to be a nothing burger than what's happens, also I

The assumption that LLMs will continue to require huge investments isn't necessarily true. if GPT-4 turns out to be a nothing burger than what's happens, also I believe chatGPT was less expensive to train than GPT-3. Also, Models can be used to train at a cost savings using other models.