RubyLLM is a unified Ruby framework that provides a single interface for working with multiple AI providers like OpenAI, Claude, and Ollama. It enables developers to build chatbots, AI agents, and other AI applications with features including chat, image/video analysis, audio transcription, document processing, image generation, embeddings, content moderation, tool integration, and structured output. The framework simplifies AI development by standardizing APIs across different providers and includes Rails integration for easy deployment.