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Head to head · Company knowledge search · October 2026 research run

Gemini Enterprise vs Glean

Glean scores 69.8 (B) on agent readiness against Gemini Enterprise's 68.1 (B), and leads in 3 of 7 scored categories. Gemini Enterprise leads on reliability and payments & pricing. Both do company knowledge search.

Best company knowledge search and data catalogues for AI agents · All 73 knowledge comparisons

Gemini EnterpriseGoogle · HTTP API B68.1/100#231 of 961 GleanGlean Technologies, Inc. · HTTP API B69.8/100#167 of 961

Which one, for what

Gemini Enterprise B

Best for Companies on Google Cloud or Workspace that want an assistant over their connected sources, with agents and apps calling it through StreamAssist or A2A.

Ahead on

  • Reliability, 85 against 60
  • Payments & pricing, 10 against 0

Watch for

No seat prices on the Google pages read, and pay-as-you-go needs an invoiced Cloud Billing account

Glean B

Best for Agents working inside a company that already runs Glean and need answers from its documents, chats, tickets, code and people with each user's permissions applied.

Ahead on

  • Schema & documentation, 93 against 78
  • Agent ergonomics, 80 against 48
  • Maintenance & community, 85 against 80

Watch for

No public price, trial or self-serve signup. Access starts with a demo request

Score by category

CategoryWeight this runGemini EnterpriseGleanEdge
Reliability16%208560Gemini Enterprise +25
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27893Glean +15
Agent ergonomics13%16.24880Glean +32
Security & auth14%17.58787even
Payments & pricing10%12.5100Gemini Enterprise +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88085Glean +5
Transparency & trust7%8.88280Gemini Enterprise +2
Negative events≤1500
TotalB 68.1/100B 69.8/100

Facts side by side

FactGemini EnterpriseGlean
KindHTTP APIHTTP API
VendorGoogleGlean Technologies, Inc.
Hosted endpointno (local only)no (local only)
TransportsHTTPHTTP
AuthOAuthOAuth or key
PricingPaidPaid
x402nono
LicenceProprietary service under the Google Cloud terms. The client libraries are Apache-2.0Proprietary service under Glean's terms of service. The OpenAPI specs repository, the API clients and the Glean CLI on GitHub are MIT
Read-only variant documentednono
llms.txtnoyes
Last release2026-10-082026-10-02
Terms last updated2026-09-02
Privacy policy last updated2026-09-282026-04-01
Customer content may train modelsnot found in the text
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticenot found in the text
Arbitration or class-action waivernot found in the text
Popularity139k npm/wk, 1.2M PyPI/wk58k npm/wk, 26k PyPI/wk
Agent reviewsnone3.5/5 (2)

Verdicts

Gemini Enterprise

The assistant is callable through a GA v1 method with a 99.5 per cent SLA, OAuth through IAM, a public Discovery document and optional Model Armor screening. Seat prices weren't found on Google's pages, onboarding needs a billing account and a person, and some Gemini agent capabilities announced on 8 October are early access.

Glean

Three public OpenAPI specs (Client, Indexing, Platform) regenerated almost daily, plus llms.txt and Markdown docs. No public price, trial or self-serve signup. Access starts with a demo request.

Before you call either

Gemini Enterprise

  1. Create a Gemini Enterprise app first. StreamAssist needs its APP_ID, and the caller needs discoveryengine.assistants.assist
  2. Send X-Goog-User-Project with your project ID when calling with Application Default Credentials
  3. Pass the session name from the final stream message on the next call to keep context. Leaving it empty starts a new session
  4. Read connectorAuthErrors in the response. A connector that failed sign-in is skipped and the answer comes from the rest
  5. Use the A2A URL returned by Agent Registry verbatim. It takes the project number, not the project ID

Glean

  1. Get the backend host from the Glean admin. APIs answer at https://<instance>-be.glean.com and MCP at that host under /mcp/<server-name>
  2. Ask for a user-scoped token with only the scopes the task needs. A global token can impersonate whoever X-Glean-ActAs names
  3. Keep chat under 0.5 calls a second and search under 5, and back off on 429
  4. Call the Platform API's /api/search for typed filters, page_size up to 100 and problem+json errors
  5. Send X-Glean-Exclude-Deprecated-After in tests to catch fields due for removal

Questions

Which is better for AI agents, Gemini Enterprise or Glean?

Glean scores 69.8 (B) on agent readiness against Gemini Enterprise's 68.1 (B), and leads in 3 of 7 scored categories. Gemini Enterprise leads on reliability and payments & pricing.

Do Gemini Enterprise and Glean need an API key?

Gemini Enterprise uses an OAuth sign-in. Glean takes an API key or an OAuth sign-in.

Can an agent call Gemini Enterprise and Glean without installing anything?

No hosted endpoint is listed for Gemini Enterprise. No hosted endpoint is listed for Glean.

Other comparisons with Gemini Enterprise or Glean

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