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Maritime · head to head

Orca AI vs Stem Athena

Orca AI logo

Orca AI

Maritime

Computer vision for maritime safety

From
$2000/month
Rated
-
Full reviewWebsite
Stem Athena logo

Stem Athena

Energy

AI-driven clean energy optimization

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Orca AI requires the SeaPod unit installed on the bridge, so it is a fitted system rather than software a fleet can simply subscribe to; Stem Athena stem's site names the product PowerTrack Optimizer, formerly Athena, so the Athena name is retired
  • They diverge on capability: Orca AI covers Computer vision detection, Stem Athena covers AI optimization.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Orca AI and Stem Athena actually diverge.

Attributes where Orca AI and Stem Athena differ
AttributeOrca AIStem Athena
Starting price$2000/monthOn request
PlatformsWeb, Maritime HardwareWeb, Mobile, Api
CategoryMaritimeEnergy
Founded20182009

Identical on both: pricing model (subscription), free tier (No), user rating (Not yet rated).

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 Orca AI

  • Computer vision detection
  • Navigation assistance
  • Collision avoidance
  • Situational awareness
  • Bridge systems
  • ECDIS
  • Radar systems
  • Embedded support

Only in Stem Athena

  • AI optimization
  • Energy storage management
  • Demand charge reduction
  • Grid services
  • Solar integration
  • Weather forecasting
  • Performance analytics
  • Remote monitoring

What people use each for

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

Orca AI

  • Automated lookout and marine target detection in congested or low visibility watersnot Stem Athena
  • Bridge situational awareness and collision alertingnot Stem Athena
  • Fleet-wide safety compliance monitoring through FleetViewnot Stem Athena
  • Perception for autonomous and unmanned vesselsnot Stem Athena
  • GPS spoofing detection and crew training reviewnot Stem Athena

Stem Athena

  • Energy asset optimization and managementnot Orca AI
  • Renewable energy integrationnot Orca AI
  • Energy storage managementnot Orca AI
  • Grid operations optimizationnot Orca AI

Where each one falls short

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

Orca AI

  • Requires the SeaPod unit installed on the bridge, so it is a fitted system rather than software a fleet can simply subscribe to
  • Aimed at commercial fleets, defence and insurers rather than individual vessel owners
  • Pricing is not published and is arranged through the vendor

Stem Athena

  • Stem's site names the product PowerTrack Optimizer, formerly Athena, so the Athena name is retired
  • No price, subscription fee or contract term is published anywhere on the site
  • The optimizer is one component of the wider PowerTrack suite alongside separate EMS, SCADA, Power Plant Controller and Logger products rather than a standalone licence
  • Design, procurement, commissioning and operation are sold as managed services separate from the software

Pricing, plan by plan

Orca AI

$2000/month
  • Fleet$5000/month
    • AI navigation assistance
    • Object detection
    • Fleet analytics

Stem Athena

On request
  • Commercial$undefined/custom
    • Energy storage optimization
    • Demand charge management
    • Rate optimization
  • Utility$undefined/custom
    • Grid services
    • VPP management
    • Frequency regulation
  • Enterprise$undefined/custom
    • Fleet management
    • Portfolio optimization
    • Custom integrations

Which should you pick?

Choose Orca AI if

  • You need computer vision detection.
  • You work on Web, Maritime Hardware.
  • You also want navigation assistance.
Orca AI review

Choose Stem Athena if

  • You need ai optimization.
  • You work on Web, Mobile, Api.
  • You also want energy storage management.
Stem Athena review

Questions people ask

Is Orca AI or Stem Athena better?
Neither clearly leads. Orca AI starts at $2000/month and Stem Athena at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Orca AI or Stem Athena?
Orca AI starts at $2000/month and Stem Athena at On request.
Does Orca AI or Stem Athena run on more platforms?
Orca AI runs on Web, Maritime Hardware. Stem Athena runs on Web, Mobile, Api.
What is Orca AI best used for?
Orca AI is most often used for automated lookout and marine target detection in congested or low visibility waters, bridge situational awareness and collision alerting, fleet-wide safety compliance monitoring through fleetview, perception for autonomous and unmanned vessels. Of those, automated lookout and marine target detection in congested or low visibility waters and bridge situational awareness and collision alerting are not what Stem Athena is typically brought in for.
What can Orca AI do that Stem Athena cannot?
Orca AI covers Computer vision detection, Navigation assistance, Collision avoidance, Situational awareness. Stem Athena covers AI optimization, Energy storage management, Demand charge reduction, Grid services.

Answered from the vendors’ own pages

Orca AI: What are Orca AI's core capabilities?

Orca AI uses AI-based sensor fusion and computer vision for autonomous maritime navigation. It provides situational awareness for ship navigation, detection of vessels and hazards, and real-time decision support for crew in congested waters and low visibility conditions.

Source
Stem Athena: How much does Stem Athena cost?

Stem does not publish pricing for Athena on its website. The company appears to use a custom enterprise pricing model. Interested customers must contact Stem directly through their website to inquire about pricing and availability.

Source
Orca AI: Has Orca AI powered any commercial autonomous voyages?

Yes, Orca AI powered the world's first commercial autonomous voyage in 2022, demonstrating the viability of autonomous shipping technology at commercial scale.

Source
Stem Athena: Does Stem offer a free trial?

The Stem website does not mention a free trial or demo option for Athena. Customers are directed to contact Stem's sales team for information about trial access or pricing.

Source
Orca AI: What is Orca AI's safety record?

Orca AI's alert system has led to a 54% decrease in close encounter incidents, contributing to enhanced voyage safety and reduced accelerations during voyages.

Source
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