LlamaIndex
AI Agents for Document OCR + Workflows
VS
Perplexity AI
AI-powered answer engine for real-time, cited information and advanced research.
Detailed comparison
Criteria
LlamaIndex
Perplexity AI
Pricing
Freemium
Freemium
Plans & pricing
Free Plan: Free, Starter Plan: $50/mo, Pro Plan: Custom, Enterprise Plan: Custom
Free Plan: Free, Perplexity Pro: $16.67/mo, Education Pro: $10/mo, Perplexity Max: $166.67/mo, Perplexity Enterprise Pro: $33.33/mo, Perplexity Enterprise Max: $270.83/mo, API Pricing: Custom
Free trial
No
No
Audience
b2b
b2c
Platforms
Web
Web
API
Yes
No
Open Source
Proprietary
Proprietary
Categories
Data & Analytics, information technology & services, Database Q&A
Specialized Technologies, information technology & services, Search engine
Popularity
Very High
Very High
Description
LlamaIndex is where developers come to build document agents. We bring together industry-leading agentic OCR for AI-powered document processing of PDF...
Perplexity AI is a research-oriented answer engine that integrates large language models with live web search, transparent citations, document analysi...
Pricing
LlamaIndex
Freemium
Perplexity AI
Freemium
Plans & pricing
LlamaIndex
Free Plan: Free, Starter Plan: $50/mo, Pro Plan: Custom, Enterprise Plan: Custom
Perplexity AI
Free Plan: Free, Perplexity Pro: $16.67/mo, Education Pro: $10/mo, Perplexity Max: $166.67/mo, Perplexity Enterprise Pro: $33.33/mo, Perplexity Enterprise Max: $270.83/mo, API Pricing: Custom
Free trial
LlamaIndex
No
Perplexity AI
No
Audience
LlamaIndex
b2b
Perplexity AI
b2c
Platforms
LlamaIndex
Web
Perplexity AI
Web
API
LlamaIndex
Yes
Perplexity AI
No
Open Source
LlamaIndex
Proprietary
Perplexity AI
Proprietary
Categories
LlamaIndex
Data & Analytics, information technology & services, Database Q&A
Perplexity AI
Specialized Technologies, information technology & services, Search engine
Popularity
LlamaIndex
Very High
Perplexity AI
Very High
Description
LlamaIndex
LlamaIndex is where developers come to build document agents. We bring together industry-leading agentic OCR for AI-powered document processing of PDF...
Perplexity AI
Perplexity AI is a research-oriented answer engine that integrates large language models with live web search, transparent citations, document analysi...
Features
LlamaIndex
LlamaIndex Core building blocks for AI agents
Industry-leading agentic OCR for AI-powered document processing
LlamaParse for advanced document parsing and extraction
Low-code workflow builder
Intelligent agents for complex document reasoning
Scalable and reliable production agents
Perplexity AI
Real-time answers with cited sources
Perplexity Computer for autonomous, multi-model AI workflows
Access to advanced AI models (GPT-5.1, Claude Opus 4.5, o3-pro, etc.)
File upload and analysis (PDFs, spreadsheets, reports)
Comet AI-native browser for integrated web assistance
Focus Modes for targeted searches (Web, Academic, Social, Health, Finance)
Key differentiators
LlamaIndex
- Agentic OCR for document processing
- Intelligent agents for document reasoning
Perplexity AI
- Real-time answers with cited sources
- Agentic AI workflows (Perplexity Computer)
- Document analysis & specialized focus modes
Other comparisons
FAQ: LlamaIndex vs Perplexity AI
LlamaIndex: AI Agents for Document OCR + Workflows. Perplexity AI: AI-powered answer engine for real-time, cited information and advanced research.. Both tools take different approaches to address similar needs.
Both offer a free or freemium plan. LlamaIndex is freemium and Perplexity AI is freemium.
The best choice between LlamaIndex and Perplexity AI depends on your specific needs. Compare their features, pricing, and target audience on this page to find the tool that best fits your use case.
LlamaIndex is primarily designed for individuals, while Perplexity AI is built for individuals.
LlamaIndex offers: LlamaIndex Core building blocks for AI agents, Industry-leading agentic OCR for AI-powered document processing, LlamaParse for advanced document parsing and extraction, Low-code workflow builder. Perplexity AI offers: Real-time answers with cited sources, Perplexity Computer for autonomous, multi-model AI workflows, Access to advanced AI models (GPT-5.1, Claude Opus 4.5, o3-pro, etc.), File upload and analysis (PDFs, spreadsheets, reports).
Based on our data, Perplexity AI currently enjoys greater popularity. However, popularity isn't the only factor — compare features to find the right tool for your needs.