AI Floor Plan Generators for Architects — Maket vs TestFit vs Finch3D

Introduction#

AI floor plan generators are among the most practically useful tools for architects in early-stage design. Three tools dominate this category in 2026: Maket.ai, TestFit, and Finch3D. Each takes a different approach, serves different project types, and targets different users.

Three-Way Overview#

Maket.ai — Generative Design from Scratch#

Maket.ai is the most accessible floor plan AI tool. Input a site boundary polygon, specify your room types and required adjacencies, set minimum and maximum areas, and Maket generates 50-200 valid floor plan layouts in under a minute.

How It Works#

1. Draw or import your site boundary
2. Define room program (number of rooms, types, areas)
3. Set adjacency requirements (kitchen next to dining, etc.)
4. Generate — receive up to 200 layout options
5. Export selected layouts as DXF (Pro)

What Maket Does Well#

The daylighting analysis overlay is uniquely useful — it shows predicted natural light distribution across each generated floor plan, helping you identify which layouts provide better daylighting before committing to detailed design.

Constraint satisfaction is Maket's core strength: every generated layout respects the adjacency and area requirements you specified. You're not generating random layouts and filtering — you're generating valid options from the start.

Maket Limitations#

Maket works best with rectilinear geometries. Complex site boundaries and curved forms reduce the quality of outputs. Plans also need architectural refinement — Maket's outputs are spatial diagrams that require an architect to develop, not finished floor plans.

Who Should Use Maket#

Residential architects and small practices exploring early-stage options. The free tier (10 plans/month) is genuinely useful for evaluation.

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TestFit — Feasibility Studies for Multifamily#

TestFit is a developer-and-architect tool focused on one thing: generating compliant, financially viable building configurations on a given site, as fast as possible.

How It Works#

1. Import site boundary (GeoJSON) or draw in-browser
2. Input zoning parameters (FAR, height, setbacks, parking ratios)
3. Select unit mix (studio, 1-bed, 2-bed proportions)
4. TestFit generates compliant configurations in under 60 seconds
5. Real-time financial metrics update as you adjust parameters

The Financial Dashboard#

TestFit's most powerful feature is its live financial metrics: unit count, gross floor area (GFA), net leasable area (NLA), parking count, and estimated construction cost all update in real time as you modify parameters. This makes it indispensable for developer conversations where you need to test "what if" scenarios on the fly.

TestFit Limitations#

TestFit is US-centric in its zoning compliance logic. International practices will find the zoning database less complete for non-US jurisdictions.

At $300-600/month, TestFit is positioned as a professional tool for practices that handle multiple development feasibility studies per month.

Who Should Use TestFit#

Architects working on multifamily, mixed-use, or student housing where developer feasibility studies are part of the service. Not suitable for single-family residential or non-residential typologies.

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Finch3D — AI Optimization for Existing Designs#

Finch3D takes a different approach: rather than generating floor plans from scratch, it analyzes your existing floor plate geometry and suggests modifications to improve three metrics simultaneously — net leasable area (NLA), natural daylighting, and circulation efficiency.

How It Works#

1. Import your existing floor plan (or draw in Finch)
2. Finch analyzes current NLA, daylighting, and circulation
3. The AI suggests specific modifications with quantified impact
4. Accept, reject, or adjust suggestions
5. Export refined plan to Revit or DWG

The Revit Plugin Advantage#

Finch's Revit plugin allows you to analyze your current Revit model directly, without exporting or re-drawing. For practices already in Revit, this frictionless integration makes Finch genuinely easy to incorporate into an existing design process.

Who Should Use Finch3D#

Commercial office architects working on fitout projects where NLA ratio is critical to client ROI. Finch is free for individual architects, making it a low-risk tool to evaluate.

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Which Tool to Choose#

Choose Maket.ai if:

• You're in early residential design exploration
• You want to generate many layout options quickly
• Budget is constrained (strong free tier)

Choose TestFit if:

• You work on multifamily or mixed-use projects
• Developer feasibility studies are part of your service
• You need real-time financial metrics alongside layouts

Choose Finch3D if:

• You have an existing design you want to optimize
• You work in commercial office fitout
• You use Revit and want in-model analysis

Explore all three in our Floor Plans category.