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Automation Integration · head to head

HighByte Intelligence Hub vs Windmill

HighByte Intelligence Hub logo

HighByte Intelligence Hub

Automation Integration

Industrial DataOps middleware that models and contextualises OT data before it reaches IT systems

From
$18500/year
Rated
-
Full reviewWebsite
Windmill logo

Windmill

Automation Integration

Open-source developer platform for building scripts, workflows, and internal apps

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Windmill has a free tier, so it costs nothing to try first.
  • Each has a real cost: HighByte Intelligence Hub it is subscription only with no perpetual licence, so the data pipelines are a permanent operating cost and stop working if the subscription lapses.; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: HighByte Intelligence Hub covers Data modelling, Windmill covers Script-to-workflow engine.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which HighByte Intelligence Hub and Windmill actually diverge.

Attributes where HighByte Intelligence Hub and Windmill differ
AttributeHighByte Intelligence HubWindmill
Starting price$18500/yearFree
Pricing modelPer site per yearopen-source
Free tierNoYes
PlatformsWindows, Linux, Dockerweb, api, linux, windows, mac

Identical on both: user rating (Not yet rated), category (Automation Integration).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in HighByte Intelligence Hub

  • Data modelling
  • Unified namespace
  • Pipelines
  • Connectors
  • High availability
  • Store and forward
  • Central configuration
  • REST data server

Only in Windmill

  • Script-to-workflow engine
  • Auto-generated UIs
  • Self-hosted deployment
  • Git sync
  • SSO support
  • Audit logs

What people use each for

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

HighByte Intelligence Hub

  • A manufacturer replacing hand-written Python scripts that push historian tags to a cloud warehouse with a modelled, supportable pipelinenot Windmill
  • A company building a unified namespace where OT payloads must carry asset context before they reach the brokernot Windmill
  • A data centre operator aggregating building and power telemetry into one cloud model across a campusnot Windmill
  • A team that needs PI System data joined with MES and ERP context without giving IT direct access to the control networknot Windmill

Windmill

  • Turning ad-hoc scripts into scheduled jobs and APIsnot HighByte Intelligence Hub
  • Building internal tools from existing Python/TypeScript codenot HighByte Intelligence Hub
  • Self-hosted automation for engineering teamsnot HighByte Intelligence Hub
  • Orchestrating multi-language workflowsnot HighByte Intelligence Hub

Where each one falls short

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

HighByte Intelligence Hub

  • It is subscription only with no perpetual licence, so the data pipelines are a permanent operating cost and stop working if the subscription lapses.
  • Pricing is per site with a 18,500 USD floor, so a small plant or a proof of concept pays enterprise money for a handful of tags; there is no tag-scaled or starter tier.
  • The Hub does not store data. It has no historian, so a destination outage longer than the store-and-forward buffer means lost data and you still need a historian or warehouse underneath.
  • Definitions of a site and a plant are negotiated rather than published, which creates room for disagreement at renewal when a customer adds a building or a second line.
  • The product depends on a small vendor with a narrow focus; if your integration needs drift towards general ETL or streaming, you end up running HighByte alongside a separate data stack rather than instead of one.

Windmill

  • Free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • Compute unit and seat-based pricing (developer vs. operator seats, worker compute units) adds pricing complexity beyond a flat monthly fee.
  • Email triggers are capped at 100/day on the free tier, limiting event-driven use cases without upgrading.
  • Smaller ecosystem of pre-built integrations compared to more established automation tools like n8n.

Pricing, plan by plan

HighByte Intelligence Hub

$18500/year
  • Professional$18500/year
    • Single plant or agreed coverage area
    • Unlimited data models and pipelines
    • High availability, embedded MQTT broker, PI System integration
  • Factory Starter Pack$50000/year
    • Three factories
    • Central configuration across instances
    • All premium features included
  • Data Center Starter Pack$65000/year
    • Single aggregation point in customer cloud
    • All premium features included
  • Enterprise$undefined/year
    • Unlimited installations under one annual contract
    • Negotiated multi-year and multi-site discounts
    • Quoted pricing

Windmill

Free
  • Free / Open-sourceFree
    • Unlimited executions
    • Self-hosted deployment
    • Max 10 users with SSO
  • Enterprise$120/month
    • Unlimited executions and workspaces
    • Uncapped SSO seats
    • 24/7 priority support (3-hour response)

Which should you pick?

Choose HighByte Intelligence Hub if

  • You need data modelling.
  • You work on Windows, Linux, Docker.
  • You also want unified namespace.
HighByte Intelligence Hub review

Choose Windmill if

  • You need script-to-workflow engine.
  • You want to start without paying.
  • You work on web, api, linux, windows, mac.
  • You also want auto-generated uis.
Windmill review

Questions people ask

Is HighByte Intelligence Hub or Windmill better?
Neither clearly leads. HighByte Intelligence Hub starts at $18500/year and Windmill at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HighByte Intelligence Hub or Windmill?
Windmill has a free tier; the other does not. Paid plans start at $18500/year for HighByte Intelligence Hub and Free for Windmill.
Does HighByte Intelligence Hub or Windmill run on more platforms?
HighByte Intelligence Hub runs on Windows, Linux, Docker. Windmill runs on web, api, linux, windows, mac.
Can I use Windmill for free?
Yes. Windmill has a free tier, so you can try it without paying. HighByte Intelligence Hub starts at $18500/year.
What is HighByte Intelligence Hub best used for?
HighByte Intelligence Hub is most often used for a manufacturer replacing hand-written python scripts that push historian tags to a cloud warehouse with a modelled, supportable pipeline, a company building a unified namespace where ot payloads must carry asset context before they reach the broker, a data centre operator aggregating building and power telemetry into one cloud model across a campus, a team that needs pi system data joined with mes and erp context without giving it direct access to the control network. Of those, a manufacturer replacing hand-written python scripts that push historian tags to a cloud warehouse with a modelled, supportable pipeline and a company building a unified namespace where ot payloads must carry asset context before they reach the broker are not what Windmill is typically brought in for.
What can HighByte Intelligence Hub do that Windmill cannot?
HighByte Intelligence Hub covers Data modelling, Unified namespace, Pipelines, Connectors. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

HighByte Intelligence Hub: What does a HighByte licence actually cost?

18,500 USD per year for Professional covering one plant, 50,000 USD for three factories, 65,000 USD for a cloud data centre aggregation point.

Windmill: What does Windmill cost?

Windmill's Free and Open-source edition is $0/month for self-hosted use with unlimited executions, while Enterprise starts at $120/month with unlimited workspaces and uncapped SSO seats, priced further by developer/operator seats and compute units.

Source
HighByte Intelligence Hub: Is pricing based on tag count?

No. All licences include unlimited data models and pipelines; the licence covers a coverage area, not a data volume.

Windmill: Is there a free plan and what are its limits?

The free self-hosted plan supports unlimited executions but caps SSO at 10 users, workspaces at 3, groups/permissions at 4, and email triggers at 100 per day.

Source
HighByte Intelligence Hub: Does HighByte store historical data?

No. It models and routes data in motion. You still need a historian or a warehouse as the destination.

Windmill: How is usage metered on Windmill Enterprise?

Enterprise usage is metered through seats (developer seats at $20/month, operator seats at $10/month) and compute units, e.g. $100/month for 2 standard-worker compute units.

Source
HighByte Intelligence Hub: Can I buy it perpetually?

No. It is an annual subscription only.

Windmill: What happens to a self-hosted Windmill deployment if the company shuts down?

The pricing page addresses this directly as an FAQ topic, noting that self-hosted applications built on the open-source edition can continue running independently of Windmill the company.

Source
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