Glean Competitors and Alternatives: Pricing, Connectors and Who Each One Fits

The short answer: the main Glean competitors are Microsoft 365 Copilot at $30 per user per month, Google Gemini Enterprise at $21 to $30 per seat, Onyx at $0 self-hosted or $20 per user per month in the cloud, Amazon Quick at $20 per user per month plus a $250 per account monthly fee, Salesforce Agentforce, GoSearch, Guru, Coveo and Notion AI. Glean itself publishes no price at any tier. The only public reference point is Vendr, which reported a median of $98,890 per year across 174 Glean purchases, roughly $8,240 a month. Every alternative in the table below except Coveo and GoSearch publishes a real list price you can check yourself.

Glean competitors compared on published price

Checked against each vendor's own pricing page on August 26, 2026. Where a vendor publishes nothing, the table says so rather than guessing.

Why buyers look for a Glean alternative

Three reasons come up repeatedly, and only one of them is price.

The contract is large and opaque. Glean's pricing page carries customer stories, adoption statistics and connector counts, and no dollar figure at any tier. That is a deliberate choice and it works fine for a company with a procurement team, but it makes budgeting impossible before a sales cycle. A CFO cannot approve a line item that does not exist yet.

The rollout is a project, not a purchase. Indexing every system in a company takes weeks of connector work and permission mapping regardless of vendor. Glean is not unusually slow here, but a buyer comparing it against a $21 seat that Google says needs no IT setup is comparing two very different commitments.

Everything indexed is now everything discoverable. This is the reason nobody puts in the RFP and everybody hits in month three. Once one system holds a permission-aware index of every document, ticket, message and CRM record in the company, that index becomes the fastest way to answer questions you did not intend to answer. If your business handles US consumer data, the same infrastructure that makes an employee's question easy makes a data subject access request easy too, and it is worth having a way to find where one person's data actually lives before somebody formally asks you. Enterprise search does not create that obligation, but it does remove your last excuse for not meeting it.

Where Glean genuinely wins

An honest comparison has to include this, because most Glean alternative pages are published by companies selling the alternative.

Connector breadth is the real moat. Glean publishes 275 or more connectors against Onyx's 40 or more, and connector count is the single number that decides whether an enterprise search deployment succeeds, because the one system nobody connected is always the one holding the answer. Glean also publishes support for 40 or more LLMs with automatic routing between them, which matters if you do not want to be locked to one model vendor's roadmap.

The adoption numbers on Glean's own page are strong and specific: 93% enterprise adoption inside two years, 110 hours saved per user per year, and more than 3 billion searches run. Zillow is cited as running more than 3,400 agents on it. Numbers a vendor publishes about itself deserve appropriate skepticism, but they are at least concrete and attached to named customers, which is more than most of this category offers.

If you have more than a thousand employees, data scattered across dozens of SaaS tools, and no dominant platform vendor, Glean is a defensible purchase and the alternatives get noticeably weaker at that size.

The cheapest real Glean alternative

Onyx, if you can host it. The community edition is MIT licensed and genuinely self-hostable, which means the software cost is $0 and you pay only for the infrastructure it runs on. The cloud Business plan is $20 per user per month billed annually and includes chat and search, custom agents, actions over MCP and OpenAPI, 40 or more connectors, web search, deep research, RBAC and permission inheritance. SSO, on-premise deployment and white labeling sit in the Enterprise tier, which is quoted rather than published.

Against a Vendr-median Glean contract of $98,890 a year, Onyx cloud at 100 seats is $24,000. That is a four times difference, and the honest tradeoff is 40 connectors against 275. Run the list of systems your people actually search before you decide whether that gap matters to you. For most companies under about 300 people, the systems that matter are Slack, Google Drive or SharePoint, a ticketing tool and a CRM, and every vendor on this page connects to all four.

Glean vs Microsoft Copilot vs Gemini Enterprise

These three are the ones that actually end up on the same shortlist, and the deciding factor is almost never the search quality.

The row that decides most deals is the second one. Microsoft 365 Copilot is an add-on, so a seat that does not already hold a qualifying Microsoft 365 plan costs $30 plus that plan, not $30. If you already own the base licenses across the company, the marginal cost really is $30 and Copilot becomes very hard to beat on price. If you do not, the gap against Gemini Enterprise Business at $21 standalone is much wider than the printed $9.

One Gemini trap worth knowing before you shortlist it: Business is the only edition Google locks out of the Agent Marketplace, so the cheapest paid Google seat cannot install partner-built agents at all. Standard is the floor for agent work. And Standard and Plus carry an identical check on every capability row in Google's own comparison table, with pooled storage of 30 GiB against 75 GiB as the only documented difference, so paying up to Plus to unlock agent features buys you nothing but storage.

Are there open source Glean alternatives?

Yes, and Onyx is the serious one. It is MIT licensed, self-hostable without an asterisk, and ships enterprise search, AI chat, custom agents and deep research in the free community edition. The practical constraints are the ones you would expect from self-hosting: you own the uptime, the connector maintenance, the permission-sync correctness and the vector infrastructure. Companies pick it for two reasons, cost and data residency, and the second one is usually the stronger motive. If a compliance requirement says company documents cannot be indexed on a third party's infrastructure, no amount of SOC 2 attestation from a cloud vendor resolves it and self-hosting is the only answer.

Does Glean publish pricing?

No. As of August 26, 2026, glean.com/pricing shows no dollar figure for any tier. Glean prices seats plus pooled FlexCredits under an Enterprise Flex model, where an agent run consumes roughly 7 credits at the median and about 114 at the ninetieth percentile, which is a 16 times spread between a typical run and a heavy one. That variance is precisely why the pricing is negotiated rather than published, and it is also the number to interrogate in a Glean sales conversation: ask what credit consumption looks like for your specific agent workload, not for the median.

Which Glean alternative should you shortlist?

Answer one question and the list drops to two or three names.

• Is Microsoft 365 already deployed company-wide? Shortlist Microsoft 365 Copilot first. The base licenses are sunk cost and nothing else will match $30 marginal.
• Is there no dominant suite? Shortlist Gemini Enterprise Business at $21 and Onyx cloud at $20. Both are standalone and neither needs a base license.
• Must the index stay on your own hardware? Onyx self-hosted, and stop looking. This requirement eliminates every other vendor on this page.
• Is Salesforce the system of record? Agentforce Foundations at $0 costs nothing to switch on, so measure real usage before you commit.
• More than a thousand employees, data everywhere, no platform vendor? Glean earns its price here, and the alternatives get thin.

Whichever way that goes, the thing to compare is not search quality, which is broadly similar and improving everywhere. It is connector coverage against your actual system list, and whether the vendor already holds your data. Our comparison of eleven AI agent platforms on published list prices puts all of these side by side on the same units, and the Glean pricing breakdown goes deeper on the FlexCredits model if Glean stays on your shortlist.

If you would rather skip the platform decision and install a finished agent for one specific job, the agent marketplaces comparison covers where each vendor's prebuilt catalog lives and what it costs to run something from it.