Fluree vs Glean
Glean is the reference product for enterprise workplace search: one permissions-aware index across hundreds of SaaS apps. Fluree is a governed knowledge graph: entities, relationships, and policy modeled in the data itself, answering people and AI agents alike. Both return cited answers instead of links — they get there through fundamentally different architectures.
This page compares them honestly, capability by capability — including where Glean is the better choice.
Every Glean claim on this page is sourced and was last verified August 2026.
Which should you choose?
Neither tool is better at everything — they're built for different jobs. The honest routing, up front.
Choose Fluree when…
- AI agents are part of the plan, and they need the same governed access as your people
- Compliance requires proving what a system could see when it answered
- Your questions span structured data and documents — entities and relationships, not just passages
- You want policy enforced in the data, with nothing sensitive entering shared indexes or embeddings
- You want published pricing and a free start, not a sales cycle to learn the cost
Choose Glean when…
- Pure workplace search across a sprawling SaaS estate is the whole requirement
- You need the deepest per-app indexing available — 275+ apps, 100+ deeply indexed
- Years-hardened inherited permission enforcement at massive scale is the deciding factor
- A six-figure enterprise budget fits how you buy software
- You want a mature, no-code agent platform bundled with the search product
Fluree vs Glean, capability by capability
Short explanations rather than checkmarks — both products evolve quickly, and a checkmark is just a claim someone can dispute.
Short explanations rather than checkmarks — both products evolve quickly. Verified August 2026.
What Fluree offers that Glean can't
Four differences that are architectural, not incremental — each something Glean's index-based design genuinely doesn't claim.
Policy lives in the data, not the platform
Glean inherits permissions into its index; Fluree evaluates policy inside the data itself during every retrieval — at the entity, relationship, and property level. There's no second permission model to maintain, and nothing sensitive enters a shared index or embedding store to begin with.
One governed graph for every AI tool you run
Through Fluree's MCP endpoint (MCP — the Model Context Protocol — is the open standard AI tools use to connect to data), Claude, ChatGPT, Bedrock, and your own agents consume the same governed knowledge under the same policies as your employees — instead of each AI tool becoming its own permission project.
Answers grounded in a knowledge graph
Multi-part questions traverse typed relationships across silos in one pass — the failure mode of similarity-ranked retrieval. Fluree's April 2024 study, GraphRAG for GenAI Accuracy, documents the accuracy gap semantic grounding closes.
Identity, resolved — not just found
Search finds every document that mentions “Acme Corp”; it can’t tell you that Salesforce’s Acme Corp and Zendesk’s ACME Inc. are the same customer. Fluree resolves entities across systems into governed golden records — so answers draw on one identity, not a pile of mentions.
Pricing you can see
Published, usage-based tiers with a free start — against unpublished per-seat quotes with reported five-figure minimums. You can find out what Fluree costs without talking to us.
Where Glean wins
A comparison you can trust has to say this part out loud.
Coverage and maturity: 275+ app integrations with 100+ deeply indexed is the largest first-party connector catalog in the category, and its inherited-permission enforcement is the most production-hardened, refined across 27 billion indexed documents and a $200M+ ARR customer base. Model choice spans 15+ LLMs with bring-your-own keys, and the 2025 agent platform ships real scheduling, triggers, and write-action guardrails.
If the requirement is pure workplace search across a huge, heterogeneous SaaS estate — and the budget clears six figures comfortably — Glean remains the reference standard, and this page would rather tell you that than win an argument. The full market picture, including Copilot, Guru, Onyx, GoSearch, Coveo, and Notion AI, is in our Glean alternatives comparison.
Frequently asked questions
The questions buyers actually ask in this evaluation.