Hi ilaksh, I was able to view your video on an android device. That said, I did have to watch it several times before I understand what was going on because a lot is happening everywhere in the screen. With the video and the minimalist intro on the site, I was still left guessing what was being offered and how it works.

Usually before signing up for any website, I want to check out all of the information I can find on it on the website, perhaps online forums if the site isnt clear, and competitors so make sure what I'm signing up for is something I actually want. I also read any terms and conditions and the privacy policy if they ask for anything from me, such as an email address. Pretty much none of this was available.

The first thing I noticed/recommend is changing the lack of tabs. It reminded me of scam sites that barely have enough to make a site appear legit so they can get at least someone to sign up for something. Also just for the persuation aspect of the site, there should be helpful tabs, like one with an example of a person using it (I know thats what the video is, but it's not intuitive for a non-user, which I'll get to in a second). One of the other guys gave the idea of having images with commentary of whats going on between each pic, which I think is a great idea if implimented properly. Maybe that page could have a longer video under the photo tutorial with audio of someone explaining a basic how to, in the form of them showing what they want to do and how they did it. Then building a simple button with a counter would be enough. Maybe a tab could be a contact page with the T&C, PP, would be nice. And another explaining how it works - like your little comment mentioning the APIs is more information than what is on the website and makes me more willing to try it out than your site did.

So onto the site itself, after log in. Because of the previous bullets, I would not have been willing to sign up, but to give hopefully a helpful response to you, and knowing I'd need to see more of the site, was the only reason I made an account.
Btw the UI of your little program is very nice. It's stylish, mostly quick to grapple, and simplistic.

Anyway when I first saw it, again due to the front page lacking any info, I was surprised that it was exactly the video. The video wasn't clear whether we were looking at a feature, the whole program, or what really. It was just visual noise without explanation on the main page. Giving it a title like "this is exactly what you'll see" will not help it though, again because it isn't clear what is going on and the video by itself is more unclear in use than the actual program itself. In fact, if you had a tab where users can actually use the program without making an account, but it just doesn't save their work and is a demo, that would already be a huge help because people would instantly see how easy and fun it is to use and it would rid like 90% of the questions caused by not having any information.

Anyway, I saw the program and thought, oh its just the front page video thing. I can use this! And I proceeded to try to use the top right portion and wondered why it didn't work. Then I kinda clicked randomly until I realized the in-prompt area is actually the top-left part. Not exactly a fatal flaw, but a clear tutorial would have led me to understanding the program faster. Like the fact that every input is its own section of code, and so my input needs to follow an orderly pseudocode format. As a person not familiar with how good AI devs are, I am not already in the know if I can have inputs be rearranged, have a correcting input (say, if I didn't like the previous input) be a new input after the prev one or if I have to edit the previous input directly. The rules of using the AI are just unclear. Speaking of edits, and I recognize that since I was using a phone to use the program, so some features are more difficult to use, I couldn't figure out how the editing works. I simultaneously was getting a glitch where the green loading bar would almost reach the end then restart, and then was going back and forth like a spring after I tried editing, and wouldn't submit anything. It was unclear if I was trying to edit wrong or there was a different bug I was running into. The already lack of clarity had ate up my patience so I didn't bother to figure out what I was doing wrong.

TL;DR:

In summary, you need 3 tabs on the front page explaining what it does, how it works and how a user uses it, and maybe another tab for T&C, PP, and contact. Since the landing page is already a attempt at that, it could be changed to why a person wants to use it. I can think of 3 reasons off the top of my head for a potential target audience and I don't even know the full uses of the program so I'm sure you can think of more.

After log in, there needs to be an additional tab with detailed tutorials, like how to think when giving info to an AI dev, how to make corrections, etc. Since you'll have a contact page, people will find more things that aren't unclear that you can use to either improve the tutorial or have a common Q&A section (which depending on the content would go on the page before logging in or after, or accessible to both). Lastly you'll want a bug submission area as well, since in the few minutes of use, I ran into bugs, and you'll probably want to separate general contact from bug submissions.