Sonar Deep Research

Sonar Deep Research is Perplexity's reasoning-tier model within the Sonar family, positioned as a specialized tool for comprehensive research and analytical tasks. As a proprietary model from Perplexity, it represents the company's focus on research-oriented AI capabilities rather than general-purpose conversation. The model operates with a 128K token context window and handles text-only inputs, without support for tool calling or multimodal capabilities. Its design emphasizes deep analytical reasoning over breadth of features, targeting users who need thorough examination of complex topics rather than quick responses or diverse functionality. Sonar Deep Research is primarily used for research workflows, academic analysis, and situations requiring comprehensive exploration of subjects. Unlike general-purpose models that balance speed and capability, this model prioritizes depth and thoroughness in its reasoning processes, making it suitable for users who value detailed analysis over rapid iteration.