I've purchased a few chatbot trainers on AppSumo. Two were good, but I returned them because they didn't support GPT-4 and had several drawbacks. However, the GPT-Trainer is a fully developed chatbot trainer with every feature imaginable, and it works flawlessly. It includes support for GPT-4 in the plan itself.

The trainer offers a comprehensive set of features to control all aspects of the chatbot, including color (dark theme included), font size, background of the font on the screen (a very important feature for readability), and different colors for answers and questions. The development approach was methodical, focusing on human usefulness and convenience. But that's not all.

The chatbot can remember user conversations for up to 4 weeks from the last interaction, including all mentioned resources, without limitation. Even in the conversation logs, readability is excellent, making it easy to find specific conversations.

It allows for resource downloads and message deletion within the conversation. Additionally, it offers webhooks, frustration detection, identity verification, and custom domains for those who need them. Users can embed the chatbot on a website, send a link, or use the preview on the control page for testing and checking—it's very easy and convenient.

The chatbot is highly accurate, and users can control and change the bot's character with customized prompts. This is more than enough, as it works flawlessly. I was tempted to purchase this one, especially considering I've previously returned two services for a refund. They were good, but not good enough.I am glad I didn't resist the temptation. No need to be tempted again, this is truly a masterpiece. Everything one needs is there.