Perplexity Pro offers several key benefits over the free version:

Powerful AI Models
Pro subscribers can choose to search using advanced AI models like GPT-4 Turbo, Claude 3, and Sonar Large (based on LLaMA 3), each with unique strengths in areas like reasoning, natural language, and conciseness.These models provide significantly more advanced natural language processing and search capabilities compared to the free tier’s default model.

Multi-Step Reasoning
The Pro Search feature can break down complex queries into smaller steps, perform a series of targeted searches, and synthesize a comprehensive answer. This multi-step approach ensures thorough and accurate results.

Enhanced Math and Programming Capabilities
Pro Search can now provide step-by-step solutions for complex math problems and assist with debugging code. These advanced features are invaluable for students, researchers, and programmers.

Unlimited File Analysis
Perplexity Pro allows uploading and analyzing unlimited PDFs, CSVs, images, and other files using the powerful AI models. This enables in-depth analysis of custom datasets and content

Priority Support
Pro users get access to exclusive support channels like the Pro Discord channel and Intercom support, with faster response times from the Perplexity team.

In summary, Perplexity Pro’s upgraded AI models, multi-step reasoning, math/programming tools, file analysis capabilities, and priority support make it a significant upgrade over the free version for users who need advanced search and analysis features.