Comparison
Snaptrude alternatives
Mirage vs Snaptrude
Snaptrude and Mirage sit at the two ends of a project's drawings. Snaptrude, according to its site, is AI-powered BIM software for architects that runs in the browser, built for the stages before documentation: brief, program, site analysis, massing and schematic design, then export to Revit, Rhino, DWG or IFC. Mirage designs nothing. It reads the drawings once they are issued, for the contractor who prices and builds from them. If you are an architect looking for a Snaptrude alternative, Mirage is not one.
Vendor facts last verified
Short answer
An architecture firm choosing an early design tool should compare Snaptrude with other massing and schematic BIM tools; Mirage authors no design. A contractor that receives the finished set and needs a takeoff, a clash check, a revision comparison or a spec review from it is where Mirage fits.
Executive Summary
Snaptrude presents itself as AI-powered BIM software for architects. It runs in the browser, with no installs, and its site describes multi-user live editing of one model. Its AI generates programs from prompts or uploaded RFPs and sites, keeps a spreadsheet of the program linked to the 3D model, converts early-stage massing into BIM walls, floors and roofs, traces a PDF drawing into an editable floor plan and produces renders. It exports .rvt files to Revit, and to Rhino, DWG and IFC, when documentation begins.
Snaptrude's own comparison with Revit draws the line: Snaptrude for feasibility, massing, program and schematic BIM; Revit for construction documents, fabrication detail and multi-discipline coordination. Mirage works further down still, on the issued set that comes out of that documentation.
Mirage Metrics builds and operates AI agents for contractors' document work. Its agents read PDF and DWG sheets, scanned or vector, and IFC where a model exists, and return a takeoff, the clashes across disciplines, the changes between two revisions or the spec clauses that conflict with the drawings, each result traced to its sheet. The two products share almost nothing beyond reading drawings: Snaptrude reads a PDF to remodel it, Mirage to measure and check it.
Key Takeaways
- Snaptrude is browser BIM for architects, from program and massing to schematic design. Mirage designs nothing.
- Mirage reads the issued set for the contractor: takeoff, clash detection, revision comparison, spec review.
- Snaptrude's own site leaves construction documents to Revit; Mirage works on the set that comes out of them.
- Snaptrude is self-serve with published prices; Mirage is deployed by its engineers, from $10,000 to launch.
At a Glance
| Aspect | Mirage | Snaptrude |
|---|---|---|
| What it is | AI agents for contractors' document work, built and operated by Mirage's forward-deployed engineers in your environment | AI-powered BIM software for architects, running in the browser |
| Who uses it | Estimators, project engineers and preconstruction teams at general contractors, EPC and MEP contractors and heavy civil contractors | Architecture design firms, according to its site |
| Early design authoring | None. Mirage produces no massing, no program and no model | Snaptrude's ground: program from prompts or RFPs, massing, blocking and stacking, schematic BIM, renders, with multi-user live editing |
| Project stage | After the set is issued: bid, preconstruction, revisions during construction | Before documentation: brief, program, site analysis, massing and schematic design |
| Drawing input | PDF and DWG sheets, scanned or vector, and IFC where a model exists, read to measure and check | Imports Revit, Rhino and Excel files; traces a PDF drawing into an editable floor plan |
| Output | Quantities, clashes, revision changes and spec conflicts, each traced to its sheet, in Excel or your estimating system | A model and presentation outputs, exported to Revit, Rhino, DWG and IFC when documentation begins |
| Takeoff and estimating | Quantities from the drawing set, each traced to its sheet, detail and spec reference | Not presented on its site as a takeoff or estimating product |
| Pricing | Fixed-price pilot; from $10,000 to launch, then an annual subscription from $1,000 a month, priced by volume | Free at $0 a month (75 credits a week, one project); Pro at $60 a month; Organization at $100 a month billed annually; Enterprise on quote |
| Security | Deployed in your infrastructure or cloud, data and keys under your control; no certification published | Lists SOC Type 2 compliance, end-to-end encryption and private IP isolation |
| Facts checked | Mirage's own pages | snaptrude.com home, pricing, workflows and Revit comparison pages, checked on 3 November 2026 |
Key Differences
The first sketch, or the issued set
Snaptrude works where a building is still a program and a massing study. Mirage works where it has become a drawing set with a revision number on every sheet. Between the two sit design development and construction documents, which Snaptrude's own site hands to Revit.
A tool the architect uses, or agents run for the contractor
Snaptrude is self-serve software: sign up free, open a project in the browser, design. Mirage is deployed: its engineers build the agent around the checks your team already makes, run it in production with a person reviewing what it flags, then move to the next workflow.
Reading a PDF to redraw it, or to measure it
Snaptrude can trace a PDF drawing into an editable plan, so the architect can keep designing from it. Mirage reads the same kind of PDF to count, measure and compare it against other sheets and the spec, and leaves the drawing untouched.
Advantages and Limitations
Mirage
Advantages
- Reads sets drawn in any tool: PDF and DWG, scanned or vector, and IFC where a model exists
- Every quantity and every flag traced to its sheet, detail or clause
- Built and operated with your team by engineers, around the checks it already makes
- Covers contractor workflows: takeoff, clash detection, revision comparison, spec review, bid leveling
Limitations
- Authors no design, massing, program or model
- Not self-serve: each workflow is a deployment, 4 to 6 weeks to the first one in production
- Does not check drawings against building codes or verify the engineering
- Publishes no security certification
Snaptrude
Advantages
- Runs in the browser, with multi-user live editing of one model
- AI program generation from prompts, RFPs and sites, linked to the 3D model
- Massing to BIM, PDF tracing, renders, and export to Revit, Rhino, DWG and IFC
- A free tier, and published prices from $60 a month
Limitations
- Built for early design; its own Revit comparison leaves construction documents and fabrication detail to Revit
- Not presented as a takeoff, estimating or drawing checking product
Real-World Use Cases
Massing options for a competition or a feasibility study
A program drawn from the RFP, several massing options to show before the deadline, the whole team editing the same model. That is Snaptrude's case, or another early design tool's. Mirage has nothing to offer here.
A contractor pricing the bid set
The set arrives as PDFs, some scanned. Mirage produces the takeoff from the whole set, each quantity traced to its sheet and detail, exported to Excel or your estimating system.
Checking an issued set before construction
Mirage checks the sheets for clashes between structure, architecture and MEP, for references that do not match and for drawings that contradict the spec, and lists each issue on its sheet.
A revision during the job
Mirage compares the new issue with the previous one and lists every change with its sheet, location and quantity difference, so the change is priced before it is built.
Mirage Workflows
Takeoff & Estimating
Quantities from PDF, DWG and IFC drawings, each traced to its sheet, detail and spec reference, exported to Excel or your estimating system.
See the pageClash detection
Clashes across structure, architecture and MEP, references and specs, flagged on the sheets before they become RFIs.
See the pageDrawing revision comparison
Every change between two revisions flagged with its sheet, its location and the quantity difference.
See the pageSpecification review
Spec clauses cross-referenced against the drawings and checked again on every revision.
See the pageGeneral contractors
Mirage's construction workflows for general contractors, from the bid set to the revisions during the job.
See the pageHow to Choose
If you design buildings and want a faster start, compare early design and schematic BIM tools; Snaptrude is one of them, and Mirage is not.
If you build them, the drawings reach you finished, and the work is reading them: quantities, clashes, revisions, the spec against the plans. That is where Mirage is deployed, one workflow at a time, whichever tool the designer used.
Nothing about one choice constrains the other. The set a Snaptrude project ends up issuing, through Revit or another documentation tool, is a set Mirage can read.
Where Snaptrude and Mirage overlap
Almost nowhere. Both read drawings, for opposite purposes: Snaptrude traces a PDF to keep designing from it, Mirage measures and checks it to price and build from it. A firm evaluating Snaptrude against Revit, Rhino or SketchUp is making a design tool decision; Mirage is not part of it.
Where Mirage fits on US and UK projects
Whoever designed the building, the contractor's documents follow different rules on each side of the Atlantic, and Mirage's construction workflows are built on those rules.
- US, specifications. Specs and submittals organized by CSI MasterFormat division, each item traced to its source. See CSI MasterFormat extraction.
- US, pay applications. AIA G702/G703 built from the schedule of values and reported progress, every line traced. See pay applications.
- UK, quantity surveying. Quantities taken from the drawings into an NRM2-structured bill of quantities, each line traced to its source drawing. See NRM quantity surveying.
- What Mirage does not do. It does not check drawings against building codes and does not verify the engineering itself; the designers keep that judgement.
Sources
- 01snaptrude.com, home page, accessed 3 November 2026
- 02snaptrude.com, pricing, accessed 3 November 2026
- 03snaptrude.com, workflows, accessed 3 November 2026
- 04snaptrude.com, Snaptrude vs Revit, accessed 3 November 2026
- 05snaptrude.com, Snaptrude vs ArchiCAD, accessed 3 November 2026
- 06snaptrude.com, Snaptrude vs SketchUp, accessed 3 November 2026
FAQ
Not for an architect. Snaptrude is early design software, from program and massing to schematic BIM; Mirage authors no design. Mirage is an alternative to the manual work a contractor does on the finished set: measuring quantities, checking for clashes, comparing revisions and reading the spec against the drawings.
Other design authoring tools. Snaptrude publishes comparison pages against Revit, ArchiCAD and SketchUp, and exports to Revit and Rhino. For drafting construction documents once the design is set, SWAPP presents itself as AI documentation and modeling automation inside Revit and ArchiCAD. This page does not rank them.
Its pricing page, read on 3 November 2026, lists Free at $0 a month (75 credits a week, one project), Pro at $60 a month, Organization at $100 a month billed annually, and Enterprise on a custom quote billed annually.
Mirage reads issued sets as PDF or DWG sheets, scanned or vector, and IFC where a model exists, whatever tool produced them. No integration with Snaptrude is claimed or needed.
No. Mirage reads drawings and documents that already exist and returns quantities, clashes, revision changes and spec conflicts, each traced to its sheet. It authors no model.
Snaptrude is self-serve software with published monthly prices. Mirage is a deployment: a proof of concept on your own documents one week after the first meeting, then a fixed-price pilot: from $10,000 to launch, then an annual subscription from $1,000 a month, priced by volume.
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Construction
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