I will create one and post the link here. Just a single page url.
It also doesn’t inspire much confidence in your early users, there’s been a lot of these GPT API cashgrabs popping up all over so if you want to differentiate yourself you might need to actually incur some risk.
It has nothing to do about whether I personally can risk the $19, I'm not even in the target audience for this – the question is what percentage of the target audience is going to be ready to pay $19 for something they don't know is going to work for their site, and how much bigger would that pie be if the site owner spent a tiny amount on offering trials.
Just making people get their card out is going to make a huge percentage of leads drop off, especially when there's almost no content/demos or an actual working trial in the site (even the screenshot is just a static screenshot instead of a live demo).
If you want to know more, you can reach out via email and I'd be happy to help (though it might cost you a bit more than $19)
In exchange for the free trial the potential customer gives you permission to use it as a demo for others to try out and see how it performs.