📖 The AI Tool Bible

Glean vs LangGraph

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 
Glean
Agents
LangGraph
Agents
TaglineWork AI platform that unifies enterprise knowledge, search, and agentsStateful, graph-based agent orchestration from LangChain.
CategoryAgentsAgents
PricingEnterprise· Enterprise pricing only; commonly reported in the $40-50/user/month range with a floor typically starting around 100 seats. No public self-serve tier. Contact sales for a quote.Freemium· Free open-source; LangGraph Platform paid
ModelModel-agnostic: routes across 35+ LLMs including GPT-4o, Claude 3.5/4 Sonnet, Gemini 1.5/2, Llama 3, Mistral, plus Glean in-house modelsBYO (Claude / GPT / open)
Editorial score8.5 / 108.8 / 10
Use cases
Enterprise search across Slack, Drive, Confluence and JiraCompany-wide AI assistant with citationsNo-code agent building for internal workflowsSales account and prospect research agentsEngineering on-call and incident-summary botsHR and IT helpdesk ticket triageNew-hire onboarding assistantExecutive briefing and meeting-prep summariesPolicy and compliance Q&A over internal docsKnowledge-graph-powered people and expertise finder
stateful agentshuman-in-loopproduction
Pros
  • Deep, permissions-aware indexing of 100+ enterprise SaaS and on-prem sources out of the box
  • Model-agnostic: route between 35+ LLMs including OpenAI, Anthropic, Gemini, and open-source
  • No-code Agent Builder plus SDK/API for developers to ship custom agents
  • Strong governance: SOC 2 Type II, ISO 42001, HIPAA, GDPR, full audit trails and observability
  • Native surfaces in Slack, Teams, browser and mobile so adoption doesn't require a new app
  • Reference customers at scale (Booking.com, Zillow, Samsung, Rivian) validating large-enterprise readiness
  • Enterprise-grade knowledge graph goes beyond RAG with people, projects and topic signals
  • Reliable, debuggable agent graphs
  • Built-in persistence + HITL
  • Production-grade
  • Tight LangSmith integration
Cons
  • Enterprise-only pricing and seat minimums put it out of reach for SMBs and individuals
  • No public pricing page - procurement cycles are long and quotes vary widely
  • Initial connector rollout, permission mapping and change-management can take weeks to months
  • Agent quality is bottlenecked by the messiness of the underlying enterprise data
  • Overlaps with newer offerings from Microsoft Copilot, Google Gemini for Workspace and ChatGPT Enterprise, forcing buyers into a platform decision
  • Steeper learning curve than CrewAI
  • Verbose to set up
Websitewww.glean.comwww.langchain.com
Pick Glean if
  • Deep, permissions-aware indexing of 100+ enterprise SaaS and on-prem sources out of the box
  • Model-agnostic: route between 35+ LLMs including OpenAI, Anthropic, Gemini, and open-source
  • No-code Agent Builder plus SDK/API for developers to ship custom agents
  • Strong governance: SOC 2 Type II, ISO 42001, HIPAA, GDPR, full audit trails and observability
Pick LangGraph if
  • Reliable, debuggable agent graphs
  • Built-in persistence + HITL
  • Production-grade
  • Tight LangSmith integration