HuggingChat is the open-source chat interface from Hugging Face, giving access to a variety of open-weight models including Llama 3, Mistral, and Command R+ without requiring payment or account creation. It supports web search, document upload, and custom system prompts. Because it runs on open-source models, it is a popular choice for developers and researchers wanting to experiment without API costs. The interface is clean and model-switching is instant.
Stan cen: March 2026