HuggingChat is an open source variant to ChatGPT that makes the finest AI chat models accessible to everyone. Developed by Hugging Face, this tool allows user to engage in an AI-driven chat, and also offers various functionalities through its integrated tools.

Some of these embedded tools include Web Search, Image Generation, URL Fetcher, Image Editing, Document Parser, Calculator, and Upload file feature. These capabilities enhance the overall usability and versatility of the HuggingChat.

One notable feature is its availability of different models; one such model is 'CohereForAI/c4ai-command-r-plus', specified in this example. Users can maneuver through different themes, models and settings according to their preference and needs.

However, it's crucial to understand that as AI is still an actively developed and researched field, the generated content might contain misinformation or be inaccurately biased.

Therefore, relying on such applications for high-stakes decisions or advice is not recommended by the developers. Nonetheless, HuggingChat aims to promote the accessibility and usability of AI applications for everyone.