From that table it looks like it will be 6x more expensive than ChatGPT's model. It looks like you need 600 units per instance vs. 100. Not sure how this translates into raw token cost though, but it seems that it is going to be more expensive once they expose serverless pay-as-you-go pricing. text-davinci-003 is $0.02 per 1k token so this could be $0.12 per kilotoken.