Vellio

Vellio offers a unified workspace for engaging with leading language models. Key features include: • Side-by-side comparison of model responses • Web search with real citations • Document and spreadsheet generation • Prompt library management and synchronization • Browser extension for quick access This platform streamlines the interaction with various advanced language models from providers like GPT, Claude, Gemini, DeepSeek, and Mistral, all within a single interface. Users can easily compare outputs from different models for the same query, ensuring they get the best possible answer. Beyond simple chat, Vellio enables users to perform web searches that include verifiable citations, enhancing the reliability of generated content. It also allows for the creation of downloadable spreadsheets and documents directly from model outputs. The service prioritizes user convenience by offering a free tier to build and manage a personal prompt library, which syncs across the web and through dedicated Chrome/Firefox extensions. For those needing full capabilities, the Pro version unlocks live chat with all models, comprehensive search features, and document creation, complete with hosted credits so no separate API keys are required. This makes it ideal for researchers, content creators, and business professionals seeking to leverage multiple sophisticated language tools efficiently.