HuggingChat is an open-source chatbot interface created by Hugging Face, the leading platform for machine learning and AI models. It provides free access to various state-of-the-art open-source language models including Meta's Llama, Mistral AI, and community-fine-tuned models. Users can switch between different models, adjust parameters like temperature and top-p, and access the latest open-source AI research. The platform is completely free with no usage limits, making it ideal for developers, researchers, and users who prefer open-source alternatives. All conversations are private and can be deleted at any time. HuggingChat represents the democratization of AI technology, giving everyone access to powerful language models without the need for expensive subscriptions.