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Glean Assistant
Your personal AI assistant
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Glean Agents
Build and manage AI agents
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The foundation of enterprise AI
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Connect to all your apps
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Get access to the latest models
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Build generative AI experiences
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Safely scale AI at work
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Secure by design from day one
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Plan & adapt over company context
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A comparison

Glean vs. ChatGPT Enterprise

Enterprise AI that connects your data, enforces permissions, and lets you choose the best models for the job, including OpenAI’s.
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Connects to 100+ enterprise apps, including Salesforce, Jira, and Confluence.
Limited to approximately 14 apps, primarily focused on SMB tools.
Delivers relevant answers using a knowledge graph built on 60+ enterprise signals.
No knowledge graph, resulting in lower relevance and isolated “world knowledge.”
Enforces permissions at the source to keep data secure and compliant.
Third-party permissions are difficult to audit, creating governance risk.
Offers full model choice (OpenAI, Anthropic, Gemini, and more) to avoid lock-in.
Locked to OpenAI models and infrastructure.
Supports flexible deployment, including SaaS or VPC in your own cloud.
SaaS-only deployment with no VPC option.
Provides a unified platform for building agents across your entire tech stack.
Agent capabilities are often in beta, with documented safety and privacy concerns.
“Company Knowledge” is incompatible with web search and image generation
What sets Glean apart

AI architected for the enterprise

Complete connectivity

Glean connects more than 100 enterprise systems, from Salesforce and Jira to ServiceNow and Confluence, so AI understands the full context of how your business operates.

No vendor lock-in

Avoid dependency on a single provider. Glean gives you the freedom to choose any LLM and deploy in your own cloud (AWS, GCP or Azure) or via Glean’s SaaS.

Enterprise-grade security

Glean enforces real-time permissions from source systems and built-in governance tools help identify and remediate sensitive data exposure automatically.

01

Connector breadth & depth

Glean
100+ native connectors, including complex systems like Salesforce, Jira, and ServiceNow.
Indexes content, metadata, identities, and activity signals.
Supports structured data retrieval from Databricks, Snowflake, and BigQuery.
ChatGPT
Limited to approximately 14 connectors, missing core enterprise systems like ServiceNow, Workday and Zendesk.
Primarily federated access, which limits context quality and retrieval speed.
No support for structured records or custom objects in platforms like Salesforce.
100+ native connectors, including complex systems like Salesforce, Jira, and ServiceNow.
Limited to approximately 14 connectors, missing core enterprise systems like ServiceNow, Workday and Zendesk.
Indexes content, metadata, identities, and activity signals.
Primarily federated access, which limits context quality and retrieval speed.
Supports structured data retrieval from Databricks, Snowflake, and BigQuery.
No support for structured records or custom objects in platforms like Salesforce.
02

Permissions

Glean
Built on a knowledge graph mapping more than 60 signals across people, content, and relationships.
Automatically disambiguates internal jargon, acronyms, and overlapping terms.
Personalizes results based on role, team, and collaboration patterns.
ChatGPT
No knowledge graph or semantic model of organizational relationships.
Relies largely on text matching rather than enterprise context.
Personalization is limited to chat history.
Built on a knowledge graph mapping more than 60 signals across people, content, and relationships.
No knowledge graph or semantic model of organizational relationships.
Automatically disambiguates internal jargon, acronyms, and overlapping terms.
Relies largely on text matching rather than enterprise context.
Personalizes results based on role, team, and collaboration patterns.
Personalization is limited to chat history.

Flexibility and control

01

Model Choice

Glean
Access a hub of 15+ leading models including GPT-4, Claude, Gemini, and Llama.
Ability to mix models by use case or agent step to balance cost and performance.
Designed to adapt as the LLM ecosystem evolves.
ChatGPT
Restricted to OpenAI models only.
No ability to swap models for different tasks or leverage other providers like Anthropic or Google.
Access a hub of 15+ leading models including GPT-4, Claude, Gemini, and Llama.
Restricted to OpenAI models only.
Ability to mix models by use case or agent step to balance cost and performance.
No ability to swap models for different tasks or leverage other providers like Anthropic or Google.
Designed to adapt as the LLM ecosystem evolves.
02

Deployment & hosting

Glean
Single-tenant deployment in your own VPC (AWS, GCP or Azure) or secure SaaS.
Full control over data residency and network configuration.
Turnkey deployment without outsourced services.
ChatGPT
SaaS-only deployment hosted on OpenAI infrastructure.
No option for customer-managed VPC hosting.
Single-tenant deployment in your own VPC (AWS, GCP or Azure) or secure SaaS.
SaaS-only deployment hosted on OpenAI infrastructure.
Full control over data residency and network configuration.

No option for customer-managed VPC hosting.

Turnkey deployment without outsourced services.

Secure and actionable

01

Permissions

Glean
All connectors automatically enforce source-system permissions, ensuring data stays accessible only to those who are authorized to see it.
Enforces the principle of least privilege.
Accounts for complex permission architectures, including nested groups, time-based access, and special behaviors unique to enterprise systems.
ChatGPT
Relies on user-level credentials.
Third-party permissions are difficult to audit, leading to potential governance risk.
All connectors automatically enforce source-system permissions, ensuring data stays accessible only to those who are authorized to see it.
Relies on user-level credentials.
Enforces the principle of least privilege.
Third-party permissions are difficult to audit, leading to potential governance risk.
Accounts for complex permission architectures, including nested groups, time-based access, and special behaviors unique to enterprise systems.
02

Governance

Glean
Includes Glean Protect to detect and restrict access to sensitive data such as PII.
Provides audit logs and verification workflows to maintain data hygiene.
ChatGPT
No native sensitive data detection for connected sources.
Includes Glean Protect to detect and restrict access to sensitive data such as PII.
No native sensitive data detection for connected sources.
Provides audit logs and verification workflows to maintain data hygiene.
03

Agents & actions

Glean
Horizontal platform for building and governing agents across Slack, web, and mobile.
100+ built-in actions for tools like Jira and Salesforce.
Supports advanced orchestration, including branching and looping workflows.
ChatGPT
Agent actions are limited and frequently in preview.
Custom GPTs lack deep integration with enterprise permission systems.
Documented safety concerns limit use in production workflows.
Horizontal platform for building and governing agents across Slack, web, and mobile.
Agent actions are limited and frequently in preview.
100+ built-in actions for tools like Jira and Salesforce.
Custom GPTs lack deep integration with enterprise permission systems.
Supports advanced orchestration, including branching and looping workflows.
Documented safety concerns limit use in production workflows.

“The vision was to marry enterprise knowledge with world knowledge to help employees work faster, smarter, better.”

Nimish Panchmatia

Chief Transformation Officer, DBS

View case study

Glean indexes and understands your data everywhere it lives.

100+ app connectors for personalized and permissions-enforced enterprise search.

View all connectors

Learn more about Glean

Model Hub Dec 2025 - 3rd Asset

Find the best model for each agent.

Read More

Glean has developed an open, horizontal platform for enterprise agents

Read More
Govern AI agents with clarity and control Mobile

Safely use AI at work.

Read More

Join world leading enterprises who put AI to work with Glean.

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FAQs

What is the main difference between Glean and ChatGPT Enterprise?

The key difference is context. Glean connects to more than 100 enterprise systems to build a permissions-aware knowledge graph of your company’s data. ChatGPT Enterprise is a strong reasoning tool but has limited access to internal knowledge and fewer native integrations. Glean is also model-agnostic, so, unlike ChatGPT Enterprise, you’re never locked into a single LLM provider.

Can I use OpenAI models with Glean?

Yes. Glean is model-agnostic. You can use OpenAI models like GPT-4 alongside models from Anthropic, Google, and Meta, combining strong reasoning with Glean’s enterprise-grade retrieval and permissions enforcement.

Does Glean integrate with ChatGPT?

Yes. Glean supports the Model Context Protocol (MCP) and can act as an MCP server. This allows users to access Glean search and enterprise agents directly within the ChatGPT interface while maintaining security controls.

Is Glean more secure than ChatGPT Enterprise?

Glean is purpose-built for enterprise security. It enforces record-level permissions from every connected system and includes governance tools to identify and protect sensitive data. ChatGPT Enterprise relies more heavily on user-managed uploads and offers fewer native controls for complex permission environments.