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Developer Tools · head to head

Deno vs Glean

Deno logo

Deno

Developer Tools

A fast, open-source, fully Node-compatible JS runtime with TypeScript baked right in

From
Free
Free plan
Yes
Visit DenoFull review
Glean logo

Glean

Business Intelligence

Work AI that Works

From
On request
Free plan
No
Visit GleanFull review

The short version

  • Deno starts at $20/mo; Glean prices on request.
  • Where Deno falls short: egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications.
  • Where Glean falls short: no pricing published on website; enterprise sales model requires demo request.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Deno and Glean actually diverge.

Attributes where Deno and Glean differ
AttributeDenoGlean
Starting priceFreeOn request
Pricing modelFreemiumQuote
Free tierYesNo
CategoryDeveloper ToolsBusiness Intelligence

Identical on both: platforms (Web).

What people use each for

The jobs each tool is most often brought in to do.

Deno

  • Running TypeScript natively without transpilation overheadnot Glean
  • Migrating Node.js applications to secure-by-default runtimenot Glean
  • Deploying edge functions and serverless containers seamlesslynot Glean
  • Consolidating developer tools into single binarynot Glean

Glean

  • Onboarding new employees across distributed teams to company knowledgenot Deno
  • Maintaining centralized searchable intranet for compliance requirementsnot Deno
  • Surfacing historical archived content for editorial and sales teamsnot Deno
  • Creating AI agents through natural language without engineersnot Deno
  • Reducing language model costs by filtering unnecessary datanot Deno

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Deno

  • Egress bandwidth overage costs $0.20/GB which can become expensive for high-traffic applications
  • CPU time overage is $0.10/hour on Pro and Builder tiers, adding to costs for compute-intensive workloads
  • Enterprise pricing is not disclosed; requires sales contact

Glean

  • No pricing published on website; enterprise sales model requires demo request

Pricing, plan by plan

Deno

Free
  • FreeFree
    • 1 million requests/month
    • 20GB egress bandwidth
    • 10 apps
  • Pro$20/mo
    • 5 million requests/month
    • 200GB egress
    • 50 apps
  • Builder$200/mo
    • 25 million requests/month
    • 2,000GB egress
    • 10,000 apps
  • EnterpriseOn request
    • Custom limits on all metrics
    • 99.95% reliability SLA
    • Email support with SLA

Glean

On request

No published plan breakdown. See the Glean review.

Which should you pick?

Choose Deno if

  • You want to start without paying.
Deno review

Choose Glean if

Nothing in the data separates Glean from Deno on the points above - pick on price and on how each one feels to use.

Glean review

Questions people ask

Is Deno or Glean better?
Neither clearly leads. Deno starts at Free and Glean at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Deno or Glean?
Deno has a free tier; the other does not. Paid plans start at Free for Deno and On request for Glean.
Does Deno or Glean run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Deno for free?
Yes. Deno has a free tier, so you can try it without paying. Glean starts at On request.
What is Deno best used for?
Deno is most often used for running typescript natively without transpilation overhead, migrating node.js applications to secure-by-default runtime, deploying edge functions and serverless containers seamlessly, consolidating developer tools into single binary. Of those, running typescript natively without transpilation overhead and migrating node.js applications to secure-by-default runtime are not what Glean is typically brought in for.

Answered from the vendors’ own pages

Deno: How much does Deno Deploy cost?

Deno Deploy offers a free tier at $0/month, Pro at $20/month, and Builder at $200/month. Enterprise has custom pricing. All plans include base request and bandwidth limits, with overage charges for additional usage.

Source
Glean: How much does Glean cost?

Glean does not publish pricing on its website. The platform uses an enterprise sales model where customers request a demo and pricing is determined through direct consultation with the sales team.

Source
Deno: What are Deno Deploy's overage charges?

Egress bandwidth overages cost $0.20 per GB. CPU time overages are $0.10 per hour on Pro and Builder tiers. Memory time and KV database operations also incur charges beyond included limits.

Source
Glean: Does Glean offer a free tier or trial?

No free tier information is available on Glean's website. Interested users must request a demo to learn about trial options and pricing.

Source
Deno: How many apps can I deploy on Deno's free plan?

The free tier includes 10 apps with up to 1 concurrent build. Pro tier supports 50 apps with 3 concurrent builds, and Builder supports 10,000 apps with 20 concurrent builds.

Source
Deno: How many team members can access Deno Deploy?

The free tier supports up to 3 team members. Pro supports 10 team members. Builder supports 25 team members. Enterprise has custom seat limits.

Source
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