Papira is an AI-powered writing assistant that enables users to automate and personalize their writing workflow using customizable AI commands. Users can create, edit, and manage documents with Markdown formatting and apply tailored AI commands to generate text variations, fix grammar, and produce summaries. The platform allows individuals to design their own commands or use a library of shared templates, making it adaptable to diverse writing tasks. Papira integrates leading language models like Anthropic, OpenAI, and Perplexity, offering flexibility for various writing styles and needs. Both free and pro plans are available, with expanded features for advanced users.