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Bentley iTwin Capture Modeler vs Cesium ion

Bentley iTwin Capture Modeler logo

Bentley iTwin Capture Modeler

CAD

Photogrammetry engine formerly sold as ContextCapture, now inside Bentley's iTwin line

From
On request
Rated
-
Full reviewWebsite
Cesium ion logo

Cesium ion

Maps

Hosted 3D geospatial tiling and streaming, metered by storage, streaming and gigapixels

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Cesium ion has a free tier, so it costs nothing to try first.
  • Each has a real cost: Bentley iTwin Capture Modeler the rename from ContextCapture is more than cosmetic: licensing moved into Bentley's subscription and consumption model, and existing perpetual users should confirm what a renewal converts to before assuming continuity of cost.; Cesium ion streaming is metered in gigabytes a month, so a public-facing application's cost is driven by visitor traffic you do not control, and a successful launch can blow through a tier immediately.
  • They diverge on capability: Bentley iTwin Capture Modeler covers Aerial triangulation, Cesium ion covers 3D Tiles tiling.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Bentley iTwin Capture Modeler and Cesium ion actually diverge.

Attributes where Bentley iTwin Capture Modeler and Cesium ion differ
AttributeBentley iTwin Capture ModelerCesium ion
Starting priceOn requestFree
Pricing modelquotePer month by storage, streaming and gigapixels
Free tierNoYes
PlatformsWindows, CloudWeb, Cloud
CategoryCADMaps

Identical on both: 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 Bentley iTwin Capture Modeler

  • Aerial triangulation
  • Dense mesh reconstruction
  • Point cloud fusion
  • Orthophoto and DSM output
  • 3D Tiles and 3MX export
  • Distributed processing
  • Retouching and editing
  • Georeferencing and control

Only in Cesium ion

  • 3D Tiles tiling
  • Global terrain and imagery
  • Google Photorealistic 3D Tiles
  • Cloud reality modelling
  • Streaming delivery
  • Access tokens
  • Geocoding
  • Self-hosted option

What people use each for

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

Bentley iTwin Capture Modeler

  • A highway authority reconstructing a corridor from drone imagery for design work in OpenRoadsnot Cesium ion
  • A survey firm delivering city-scale textured meshes to a municipal client for planning and visualisationnot Cesium ion
  • An engineering consultancy fusing terrestrial laser scans with drone photography of a bridge for condition assessmentnot Cesium ion
  • A team publishing streamable 3D Tiles of a construction site so stakeholders can view it in a browsernot Cesium ion

Cesium ion

  • A survey firm delivering a photogrammetry mesh to a client as a browser link rather than a 40 GB downloadnot Bentley iTwin Capture Modeler
  • A simulation team streaming global terrain and imagery into an Unreal Engine environmentnot Bentley iTwin Capture Modeler
  • An urban planning department publishing a city model that planners can inspect without desktop GIS softwarenot Bentley iTwin Capture Modeler
  • A software product embedding 3D geospatial views and needing hosted tiling rather than building a tilernot Bentley iTwin Capture Modeler

Where each one falls short

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

Bentley iTwin Capture Modeler

  • The rename from ContextCapture is more than cosmetic: licensing moved into Bentley's subscription and consumption model, and existing perpetual users should confirm what a renewal converts to before assuming continuity of cost.
  • Consumption-based entitlements make the cost of a large reconstruction hard to predict in advance, which is awkward when you are quoting a fixed-price deliverable to a client.
  • The desktop engine is Windows only and reconstruction is compute-hungry, so meaningful throughput needs either serious workstation hardware or paid cloud processing.
  • Bentley does not publish a plain rate card and pricing varies by region, reseller and existing agreement, so two firms buying the same thing can pay very different amounts.
  • Value compounds inside the Bentley ecosystem, and a firm whose design work happens in Autodesk or Esri tools pays for a positioning it will not use while getting the same mesh a cheaper standalone photogrammetry package would produce.

Cesium ion

  • Streaming is metered in gigabytes a month, so a public-facing application's cost is driven by visitor traffic you do not control, and a successful launch can blow through a tier immediately.
  • Reality modelling is billed in gigapixels a month, an unfamiliar unit that makes it hard to estimate in advance how many drone flights a plan will actually cover.
  • The free Community tier is restricted to non-commercial or open use, so a consultancy sharing a model with a paying client does not qualify regardless of how small the dataset is.
  • Team accounts cost substantially more than individual ones at the same quota, $524 against $149 on Commercial, so adding a second colleague is a large step rather than an incremental seat charge.
  • Self-hosting is available only under a custom enterprise agreement, which leaves organisations with data residency or air-gap requirements out of the published tiers entirely.

Pricing, plan by plan

Bentley iTwin Capture Modeler

On request
  • iTwin Capture Modeler$undefined/year
    • Subscription entitlement through Bentley licensing
    • Consumption charged against Bentley Keys on some agreements
    • Reality Modeling WorkSuite bundles Modeler with reality data management

Cesium ion

Free
  • CommunityFree
    • 5 GB storage
    • 15 GB per month streaming
    • 20 gigapixels per month reality modelling
  • Commercial$149/month
    • 50 GB storage
    • 150 GB per month streaming
    • 40 gigapixels per month reality modelling
  • Premium$499/month
    • 250 GB storage
    • 500 GB per month streaming
    • 100 gigapixels per month reality modelling
  • Custom$undefined/year
    • Negotiated quotas
    • Self-hosted deployment in your own environment
    • Enterprise support

Which should you pick?

Choose Bentley iTwin Capture Modeler if

  • You need aerial triangulation.
  • You work on Windows, Cloud.
  • You also want dense mesh reconstruction.
Bentley iTwin Capture Modeler review

Choose Cesium ion if

  • You need 3d tiles tiling.
  • You want to start without paying.
  • You work on Web, Cloud.
  • You also want global terrain and imagery.
Cesium ion review

Questions people ask

Is Bentley iTwin Capture Modeler or Cesium ion better?
Neither clearly leads. Bentley iTwin Capture Modeler starts at On request and Cesium ion at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bentley iTwin Capture Modeler or Cesium ion?
Cesium ion has a free tier; the other does not. Paid plans start at On request for Bentley iTwin Capture Modeler and Free for Cesium ion.
Does Bentley iTwin Capture Modeler or Cesium ion run on more platforms?
Bentley iTwin Capture Modeler runs on Windows, Cloud. Cesium ion runs on Web, Cloud.
Can I use Cesium ion for free?
Yes. Cesium ion has a free tier, so you can try it without paying. Bentley iTwin Capture Modeler starts at On request.
What is Bentley iTwin Capture Modeler best used for?
Bentley iTwin Capture Modeler is most often used for a highway authority reconstructing a corridor from drone imagery for design work in openroads, a survey firm delivering city-scale textured meshes to a municipal client for planning and visualisation, an engineering consultancy fusing terrestrial laser scans with drone photography of a bridge for condition assessment, a team publishing streamable 3d tiles of a construction site so stakeholders can view it in a browser. Of those, a highway authority reconstructing a corridor from drone imagery for design work in openroads and a survey firm delivering city-scale textured meshes to a municipal client for planning and visualisation are not what Cesium ion is typically brought in for.
What can Bentley iTwin Capture Modeler do that Cesium ion cannot?
Bentley iTwin Capture Modeler covers Aerial triangulation, Dense mesh reconstruction, Point cloud fusion, Orthophoto and DSM output. Cesium ion covers 3D Tiles tiling, Global terrain and imagery, Google Photorealistic 3D Tiles, Cloud reality modelling.

Answered from the vendors’ own pages

Bentley iTwin Capture Modeler: Is ContextCapture discontinued?

The name is. The product continues as iTwin Capture Modeler within Bentley's iTwin family.

Cesium ion: How is Cesium ion priced?

By several meters at once: storage in gigabytes, streaming in gigabytes per month, and reality modelling in gigapixels per month. Commercial starts at $149 a month for an individual.

Bentley iTwin Capture Modeler: Does it still support a perpetual licence?

New buyers should expect subscription or consumption-based entitlements. Confirm the exact conversion path if you hold an older perpetual licence.

Cesium ion: Is the free tier usable commercially?

No. Community is for non-commercial or open use. Commercial work needs a paid plan.

Bentley iTwin Capture Modeler: Can it process laser scan data as well as photographs?

Yes. It fuses point clouds with imagery in a single reconstruction.

Cesium ion: Can I run ion on my own infrastructure?

Only under a custom enterprise agreement negotiated with Cesium.

Bentley iTwin Capture Modeler: Do I need other Bentley software to use it?

No, output formats are usable elsewhere, but the commercial and workflow case is strongest if you already run MicroStation or OpenRoads.

Cesium ion: Do I need Cesium ion to use CesiumJS?

No. CesiumJS is open source and free. ion provides hosted tiling, base layers and streaming that you would otherwise have to build.

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