Last week, I got seriously fascinated by the new GPT-4 Vision API introduced on OpenAI DevDay, so I decided to build a UX Audit tool with this API.<p>It's pretty simple to use - just go to <a href="https://flawless.is" rel="nofollow noreferrer">https://flawless.is</a> and enter your homepage or landing page URL.<p>I'm using the urlbox API to get a screenshot of your page, then I utilize GPT-4V to analyze the screenshot, find potential usability and conversion issues, suggest fixes, and highlight the relevant areas in the screenshot (although the position is sometimes inaccurate).<p>Last week, I launched it on Hacker News (<a href="https://news.ycombinator.com/item?id=38207892">https://news.ycombinator.com/item?id=38207892</a>), but I wasn't ready for the 20,000 visitors that came next... Unfortunately, GPT-4V has a rate limit of 100 events daily, so almost no one could use the service - EPIC FAIL.<p>To manage demand, I now priced the service at $1.99 (still less than a cup of coffee), which should keep the demand at bay, and also cover the costs of GPT-4V, the screenshot API, and hosting.<p>As a proof of concept, there are some demo audits on the homepage you can click and check out.<p>Please let me know your thoughts and suggestions on how to improve it!