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Glean vs LlamaIndex
Short answer: Pick Glean if you want enterprise-grade AI search & automation; pick LlamaIndex if you want agentic OCR for complex docs. LlamaIndex has a free plan.
GleanAI work assistant and enterprise search
LlamaIndexFramework for LLM apps and agents over your dataWhich to pick
Pick Glean if you want…
- Enterprise-grade AI search & automation
- Integrations with Slack, Google Drive or Jira (on Glean's list, not LlamaIndex's)
Pick LlamaIndex if you want…
- Agentic OCR for complex docs
- Data indexing for LLMs
- Open-source code (run-llama/llama_index on GitHub, MIT license)
- Integrations with Microsoft Azure Marketplace (on LlamaIndex's list, not Glean's)
Side by side
- What it is
- Glean:Glean is an enterprise AI platform that adds contextual search, assistants and agents to company data for secure, governed workflows.
- LlamaIndex:LlamaParse converts complex documents into structured, AI-ready data with agentic OCR and extraction.
- Best for
- Glean:Enterprise-grade AI search & automation
- LlamaIndex:Agentic OCR for complex docs
- Who it’s for
- Glean:Large enterprises needing AI-powered search, automation and compliance.
- LlamaIndex:Developers building AI agents and RAG pipelines that need accurate document parsing.
- Pricing
- Glean:Contact sales
- LlamaIndex:Freemium
- Free plan or trial
- Glean:—
- LlamaIndex:Free plan (Free)
- Plans
- Glean:—
- LlamaIndex:Free $0
- Open source
- Glean:—
- LlamaIndex:Yes, 52,381 GitHub stars
- Works with
- Glean:Slack, Google Drive, Jira, Confluence, SharePoint, GitHub, Salesforce
- LlamaIndex:Microsoft Azure Marketplace
Glean features
- Enterprise Context. Connects to work apps, indexes data and builds a graph to give AI full company context.
- Glean Protect. Permission-aware security and compliance controls protect sensitive content.
- Glean Intelligence. Matches each task to the optimal model across 40+ open and frontier LLMs.
- Open Platform APIs. Provides Search, Chat and Agents APIs plus SDKs for custom integrations.
- Glean Search. Enterprise-wide search that finds information across documents, tickets and code.
- Glean Assistant. Personalized AI assistant that answers questions using company knowledge.
- Glean Agents. No-code agents that automate work via natural-language commands.
LlamaIndex features
- Agentic OCR. Layout-aware parsing of tables, charts, images and handwriting with high accuracy.
- Schema-based Extraction. Turn unstructured content into structured JSON using LLM-powered agents without training.
- Document Splitting & Classification. Automatically segment and categorize documents using natural-language rules.
- Enterprise Indexing. Chunking and embedding pipeline for precise retrieval in RAG applications.
- LiteParse Local Engine. Open-source, fast, on-device parsing of PDFs, Office files and images with no cloud limits.
- Security & Compliance. SOC 2, GDPR, HIPAA compliance with encryption, VPC deployment and granular access controls.
Glean vs LlamaIndex FAQ
What is the difference between Glean and LlamaIndex?+
LlamaIndex focuses on indexing data for LLMs; Glean adds searchable UI, agents and enterprise compliance on top of indexed data.
Should I use Glean or LlamaIndex?+
Pick Glean if you want enterprise-grade AI search & automation or integrations with Slack, Google Drive or Jira (on Glean's list, not LlamaIndex's). Pick LlamaIndex if you want agentic OCR for complex docs, data indexing for LLMs or open-source code (run-llama/llama_index on GitHub, MIT license).
Is Glean or LlamaIndex free?+
LlamaIndex has a free plan and paid plans.
Is Glean or LlamaIndex open source?+
LlamaIndex is open source (run-llama/llama_index on GitHub, MIT license). DevHunt has no public source repository on record for Glean.
Do Glean and LlamaIndex integrate with the same tools?+
Their integration lists don't overlap: Glean lists Slack, Google Drive, Jira, Confluence and 3 more; LlamaIndex lists Microsoft Azure Marketplace.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.