Skip to content
effecthub

Cluing vs Glean

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Free plan
Cluing has one; Glean prices on request
Public API
Glean has one; not confirmed by us for Cluing
Higher Trust score
Glean — 90 vs 77 for Cluing
Best fit
Cluing: Small research or content teams who highlight a lot of web and PDF material · Glean: Organisations above roughly 500 people whose knowledge is scattered across a dozen SaaS tools
Platforms
Cluing: Web, Chrome extension · Glean: Web, Slack app, Chrome extension

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

CluingBrowser highlights and PDFs turn into a shared, self-organizing knowledge base agents can act on.GleanPermission-aware search and agents across company applications

Side by side

FactCluingGlean
CategoryKnowledge Management & WikisPersonal & Enterprise Search
Pricing modelFreemiumContact
Starts at$12/mo—
Public APINot confirmedYes
Trust score77 / 10090 / 100
PlatformsWeb, Chrome extensionWeb, API, Slack app, Chrome extension
CompanyCollabwriting Inc.Glean Technologies, Inc.
Launched—2019
Last verifiedOct 15, 2026Oct 16, 2026

What our research says

Cluing

Cluing solves a specific problem — a team's research and highlights scattering across browser tabs and personal notes — by routing everything into one shared, searchable base that its agents can then draft from. It is most useful once a team is actually capturing enough material for the organizing and agent features to pay off; below that, the free plan's 5-cluster cap will feel tight fast.

Pros

  • Browser extension captures highlights directly from web pages and PDFs
  • Free tier is usable enough to evaluate the core workflow before paying
  • ISO/IEC 27001:2022 certification is a real signal for teams with security requirements

Cons

  • Free plan's 5-cluster and 5-guest limits are restrictive for anything beyond a quick trial
  • Team plan jumps to $140/month, a large step up from the $12/month individual Pro plan
  • Value depends on a consistent team habit of highlighting and organizing, not just occasional use

Glean

Glean is the reference implementation of permission-aware enterprise search, and permissions are the hard part everyone else underestimates. It is also priced so that only companies with a real sprawl problem can justify it.

Pros

  • Permission inheritance from each connected system is done properly, not approximated
  • Answers cite and link the underlying documents rather than paraphrasing them away
  • Connector coverage across the mainstream SaaS estate is broad
  • Commercially solid: about $300M ARR by May 2026 at a $7.2B valuation

Cons

  • No published price anywhere, and contracts start in six figures
  • Value depends entirely on connector coverage of your specific stack
  • Index quality inherits whatever mess exists in the source systems
  • Overlaps increasingly with Microsoft and Google's bundled offerings, which cost nothing extra

Which one fits

Choose Cluing if you need

  • Small research or content teams who highlight a lot of web and PDF material
  • Consultants and founders who want shared institutional knowledge instead of individual notes
  • Teams that want to turn saved research directly into drafts like SEO posts or reports

Choose Glean if you need

  • Organisations above roughly 500 people whose knowledge is scattered across a dozen SaaS tools
  • Regulated or security-conscious buyers who need source-system permissions honoured exactly
  • Teams building internal agents that need governed access to company context

Cluing vs Glean: the questions people ask

Is Cluing cheaper than Glean?

Cluing starts at $12/mo; Glean prices on request, so a quote is the only way to compare.

Does Cluing or Glean have a free tier?

Cluing has a free tier; Glean prices on request.

Which has a public API, Cluing or Glean?

Glean ships a public API, as of our last verification. A public API for Cluing is not confirmed by us — check its developer docs before you plan an integration.

More comparisons

Browse all Knowledge Management & Wikis →