GPS-X

subscription (annual per-seat) Design the Building

Wastewater treatment plant modeling and simulation software by Hydromantis (a Hatch company) -- the first commercially released dynamic wastewater treatment plant simulator, providing a drag-and-drop interface with the industry's largest library of unit process models (Mantis2 biological model, carbon/nitrogen/phosphorous removal, sulfur/selenium, GHG carbon footprint) for designing, optimizing, and managing municipal and industrial wastewater treatment plants; includes steady-state and dynamic simulation, sensitivity analysis, process optimization, scenario management, and Python scripting (Pro+ tier).

Agent-hostile
2.4 /5 composite score
Situational -- the established wastewater treatment plant simulation leader (since the 1990s) with transparent annual pricing ($3,700-10,400/yr), the industry's largest unit-process library, and Python scripting integration at the Pro+ tier; steep learning curve, Windows-only desktop delivery with no REST API/CLI (RF2), and niche applicability to wastewater process engineers limit broader adoption.
Situational

Rubric Scorecard

How we grade →

Criterion Score Evidence
Value for the price 3/5 subscription (annual per-seat), from $3700 Source →
Agent Friendliness 2/5 API: Model-as-a-Service (MaaS) cloud API for running GPS-X models on demand (Pro+ tier); Python scripting integration (Pro+ tier)
Ease of adoption 2/5 desktop-install, steep learning curve
Portability & lock-in 3/5 2 file formats
Interoperability 2/5 1 integrations
Visit GPS-X →

How we verified this: we checked GPS-X against its live site and an independent source — hydromantis.com. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-05.

Evidence

File formats

FormatDirectionSupport
CSV import full
CSV export full -- Results export

Integrations

Python (native)

Adoption

Deploymentdesktop-install
Self-serve signupyes
Learning curvesteep

Pricing detail

Billing unitper-seat
TiersStandard ($3700), Pro ($4700), Pro+ ($10400)

Sources

Alternatives in Civil & Infrastructure Design

AutoCAD-based civil engineering design and documentation platform for grading/surfaces, road and rail corridor modeling, pipe network hydraulics, and survey -- the civil-engineering flagship that turns conceptual InfraWorks models into construction-ready plan/profile sheets and quantity takeoffs.
3.4/5
Free, public-domain stormwater, wastewater, and combined sewer system simulation model by the US Environmental Protection Agency -- dynamic hydrology-hydraulic-water quality simulation for single-event or continuous modeling of rainfall-runoff, pipe/channel routing, green infrastructure/LID controls, and pollutant loads; the industry-standard computational engine used worldwide for drainage design, CSO/SSO mitigation, floodplain mapping, and regulatory compliance (NPDES, CMOM, TMDL).
3.4/5
Free, public-domain water distribution system modeling software by the US Environmental Protection Agency -- performs extended-period simulation of hydraulic and water-quality behavior within pressurized pipe networks (pipes, pumps, valves, tanks), tracking flow, pressure, water age, chlorine residuals, and contaminant transport; provides a C Programmer's Toolkit (DLL with 50+ functions) for custom integration; the industry-standard computational engine underlying most commercial water-distribution modeling packages worldwide.
3.4/5
Early-stage conceptual infrastructure design tool that builds a GIS-rich 3D context model (terrain, imagery, existing utilities) for rapid road, bridge, rail, and drainage concept design and stakeholder visualization before detailed design moves into Civil 3D or Revit.
3.0/5

Compare all Civil & Infrastructure Design tools →

Subscribe to Building Probable

Independent AEC + AI reviews & research, including Civil & Infrastructure Design coverage -- the companion newsletter to buildingtech.pro.

Subscribe to Building Probable →