DeepInfra offers a platform that allows users to deploy and run AI models at scale using a fully managed GPU infrastructure, providing enterprise-grade uptime at competitive rates. To utilize DeepInfra's services, users need to obtain an API key, which is necessary for all API requests and can be generated by signing up and accessing the dashboard. Model deployment can be done through the web dashboard or via API, and models are automatically deployed upon the first inference request. Users can perform model inference using DeepInfra's REST API, exemplified by using curl commands, to interact with various models like OpenAI's Whisper and others. DeepInfra also highlights its range of available models and provides additional resources such as pricing, documentation, and customer support to enhance user experience.