Softwr

Automation Integration · head to head

HighByte Intelligence Hub vs Letta

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
Letta logo

Letta

Automation Integration

Machines that learn

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Letta 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.; Letta free tier limited to 3 stateful agents
  • Prices and features above were last checked on 1 September 2026.

Where they differ

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

Attributes where HighByte Intelligence Hub and Letta differ
AttributeHighByte Intelligence HubLetta
Starting price$18500/yearFree
Pricing modelPer site per yearfreemium
Free tierNoYes
PlatformsWindows, Linux, DockerWeb

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 Letta

Nothing recorded that HighByte Intelligence Hub does not also cover.

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 Letta
  • A company building a unified namespace where OT payloads must carry asset context before they reach the brokernot Letta
  • A data centre operator aggregating building and power telemetry into one cloud model across a campusnot Letta
  • A team that needs PI System data joined with MES and ERP context without giving IT direct access to the control networknot Letta

Letta

  • Building agents with memory for continuous learningnot HighByte Intelligence Hub
  • Enabling reflection during idle periods via sleep-computenot HighByte Intelligence Hub
  • Managing agent context and extracting learningsnot 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.

Letta

  • Free tier limited to 3 stateful agents
  • Pro tier capped at 20 stateful agents
  • API Plan usage charges apply beyond base tier

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

Letta

Free
  • FreeFree
    • Limited agents
    • Limited Letta Auto usage
    • Bring your own API keys
  • Pro$20/month
    • Weekly and monthly Letta Auto quota
    • Pay-as-you-go overage
    • Up to 20 stateful agents
  • API Plan$20/month
    • Unlimited agents
    • $0.10/active agent/month
    • $0.00015/second for tool execution
  • Teams Pro$20/month
    • Per seat pricing
    • Add teammates
    • Letta Auto quota

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 Letta if

  • You want to start without paying.
Letta review

Questions people ask

Is HighByte Intelligence Hub or Letta better?
Neither clearly leads. HighByte Intelligence Hub starts at $18500/year and Letta at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, HighByte Intelligence Hub or Letta?
Letta has a free tier; the other does not. Paid plans start at $18500/year for HighByte Intelligence Hub and Free for Letta.
Does HighByte Intelligence Hub or Letta run on more platforms?
HighByte Intelligence Hub runs on Windows, Linux, Docker. Letta runs on Web.
Can I use Letta for free?
Yes. Letta 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 Letta is typically brought in for.
What can HighByte Intelligence Hub do that Letta cannot?
HighByte Intelligence Hub covers Data modelling, Unified namespace, Pipelines, Connectors.

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.

Letta: How much does Letta cost?

Letta offers a free tier, then Pro plan at $20/month with up to 20 stateful agents, API Plan at $20/month base plus usage charges ($0.10/active agent/month, $0.00015/second for tool execution), and Teams Pro at $20/seat/month.

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.

Letta: How many agents can I create on the free plan?

The free tier is limited to 3 stateful agents. Pro plan allows up to 20 stateful agents, while API Plan offers unlimited agents.

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.

Letta: Does Letta charge for tool execution?

On the API Plan, Letta charges $0.00015 per second for tool execution. The Pro and Teams Pro plans include execution in their monthly fee.

Source
HighByte Intelligence Hub: Can I buy it perpetually?

No. It is an annual subscription only.

Share

Related pages

More on HighByte Intelligence Hub

More on Letta

Keep looking

Other head to heads