Delv
General Assistantby Glean★ 4.3

Glean

Enterprise AI platform unifying search, assistant and agents over a permission-aware knowledge graph of your company apps.

Try it Also in Tools: AI Productivity →
B
Safety & Trust

Delv Safety Grade: B

Score 68/100 · assessed 2026-04-18

Maintainer75
Permissions45
Supply chain60
Transparency50
Incidents100

Glean is a well-funded enterprise AI platform from a legitimate vendor (backed by Sequoia, Kleiner Perkins), but operates as a closed-source SaaS with broad permissions across your entire company data estate. The permission-aware knowledge graph is a genuine security feature, ensuring users only see what they're entitled to, but the platform itself requires read access to essentially everything: Slack, Drive, Jira, Confluence, email, calendars. No public repository means you're trusting Glean's security posture entirely. The enterprise pricing model and established customer base (Databricks, Confluent) suggest operational maturity, but transparency is limited. Supply chain risk is moderate: you're integrating via OAuth and API keys rather than installing code, but there's no open audit trail. No known incidents, but the blast radius of a Glean compromise would be severe given the breadth of data access.

Green flags

  • Permission-aware graph respects existing access controls across apps
  • Established enterprise vendor with major VC backing and known customers
  • OAuth-based integration limits credential exposure vs custom installs
  • No known security incidents or breaches in public record
  • Designed for compliance-heavy environments (implies security investment)

Red flags

  • Closed source with no public code review or security audit trail
  • Requires read access to entire company knowledge base across all apps
  • No repository means supply chain is opaque, trust-based only
  • Enterprise-only pricing obscures true cost and lock-in risk
  • Broad permissions across messaging, files, repos, identity without sandbox

Permissions requested

Read filesOutbound networkAccess secretsRead messagesRepo readIdentity readExternal LLM call
Assessed by Delv Editorial using public metadata. Grades are advisory and update as the ecosystem changes. They do not replace your own review of permissions and code before granting an agent access to sensitive systems.

Pricing

ENTERPRISE — Contact for pricing

Platforms

webslackapi

Review

Glean is what happens when you take enterprise search seriously and bolt an agent layer on top. The core trick is a permission-aware knowledge graph that spans your Slack, Google Drive, Jira, Confluence, and whatever else your company uses. When you ask a question, Glean only surfaces what you're actually allowed to see. That sounds basic, but most enterprise AI tools either ignore permissions entirely or get them wrong. I've watched teams use Glean to automate the kind of work that used to mean hunting through five different apps. A product manager I know uses it to generate weekly updates by pulling ticket status from Jira, design files from Figma, and Slack threads from the eng channel. The agent compiles it all into a coherent summary without her touching a single tab. That's the autonomy bit: you set the task, it goes and fetches, synthesises, and formats. You're not prompting it step by step. The workflow agents are where Glean gets interesting. You can build agents that monitor specific channels or documents and trigger actions when conditions are met. One team built an agent that watches for customer complaints in Slack, pulls related support tickets, and drafts a summary for the CS lead. It's not magic, it's just good plumbing plus decent reasoning. Failure modes: Glean is only as good as your company's data hygiene. If your Confluence is a graveyard of outdated pages, the agent will confidently cite them. It also struggles with nuance in cross-functional questions where context lives in someone's head, not in a doc. The assistant sometimes over-indexes on recency, surfacing last week's draft instead of the canonical version. Compared to something like Microsoft Copilot, Glean is narrower but deeper. Copilot tries to do everything; Glean focuses on search and knowledge synthesis. If your company lives in Google Workspace or Slack, Glean is the better bet. If you're all-in on Microsoft, Copilot's native integrations win. Pricing is enterprise-only, which means a sales call and a contract. Expect per-seat licensing. Not for small teams or individuals.
Verdict

If your company has more than 100 people and knowledge is scattered across a dozen tools, Glean pays for itself in time saved. Skip it if you're a startup or if your stack is already unified in one ecosystem.

Good at

  • Permission-aware search across all company apps, no data leakage
  • Workflow agents can monitor and act on triggers without manual prompting
  • Strong integrations with Slack, Google Workspace, Jira, Confluence
  • Knowledge graph approach surfaces connections between documents and people
  • Agents can compile cross-app summaries autonomously

Watch out

  • Enterprise pricing only, no transparent tiers or self-serve option
  • Quality depends entirely on your company's data hygiene
  • Can over-index on recent documents, ignoring canonical sources
  • Struggles with context that lives in conversations, not docs
  • Limited value if your stack is already unified in one platform

Use cases

  • enterprise search
  • workflow agents
  • knowledge assistants