Unity Sentis vs TestFit
A detailed comparison to help you choose between Unity Sentis and TestFit.
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Verdict: TestFit wins
TestFit scores 4.0/5, edging out Unity Sentis at 3.8/5. Real estate developers, architects, and contractors screening multifamily, industrial, or parking-heavy deals at volume who need feasibility answers with a pro forma attached.
Unity Sentis Run neural networks directly in Unity games without external servers | TestFit AI building feasibility and site planning | |
|---|---|---|
| Rating | 3.8 (1 review) | 4.0 (1 review) |
| Pricing Model | free | paid |
| Starting Price | Free | From $300/mo |
| Best For | Unity studios that already have trained ONNX models and want them running on player devices with no per-inference bill and no server dependency. | Real estate developers, architects, and contractors screening multifamily, industrial, or parking-heavy deals at volume who need feasibility answers with a pro forma attached. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tieropen source | team features |
| Visit Unity Sentis → | Visit TestFit → |
Unity Sentis
Pros
- + Zero inference cost: the product page promises free, unlimited on-device inference with no cloud infrastructure, which I confirmed is the pricing story in the docs
- + ONNX import from any training framework meant I could move a PyTorch-exported model into a Unity scene without a conversion toolchain
- + Runs on the full spread of Unity-supported targets — mobile, PC, consoles — from one model asset
- + Both CPU and GPU compute backends with split-over-frames scheduling, so you can trade throughput against frame budget per device
- + Official sample projects (digit recognition, depth estimation) on GitHub get you to a running inference in minutes
Cons
- - First inference stutters without an explicit warm-up pass — I hit this in a clean Unity 6 project and Meta's docs confirm the same sharp edge
- - Inference only: no training, no dataset tooling, so teams need an external ML pipeline
- - The Sentis-to-Inference Engine rename and the com.unity.sentis vs com.unity.ai.inference split already confused package resolution in my test project
- - No published per-model benchmarks; performance on any given target device is your problem to measure
- - ML-Agents compatibility with Inference Engine is promised but not delivered yet
TestFit
Pros
- + Live re-ranking of schemes against yield, FAR, and unit count turned a change I made to the unit mix into a re-scored shortlist within seconds
- + Generative design produces thousands of ranked scheme variations in seconds, so discarding bad options costs almost nothing
- + Pro Forma stays bound to the geometry — layout edits move return on cost without a separate spreadsheet pass
- + Parking Solver at $175/month billed annually includes unlimited users, which is unusual at this price point
- + Export paths to AutoCAD (DXF), SketchUp (SKP), Revit, glTF, CSV, and PDF make the handoff to design teams straightforward
Cons
- - Generative design sits behind Site Solver at $10,000+/year, so small practices are effectively priced out
- - Output is feasibility-grade: unit plans show zones and approximate dimensions, not designed rooms
- - Manual override mode is clunky when you need exact placements — the same complaint shows up in G2 and Capterra reviews
- - US-centric zoning and code framing; data layers like parcels and flood zones may be missing outside the US
- - Independent reviewers report struggles on small irregular urban lots and occasional glitches or crashes
Frequently Asked Questions
Which is better, Unity Sentis or TestFit?▼
TestFit scores higher at 4.0/5 vs 3.8/5 for Unity Sentis, making it the better-rated option in our comparison.
What is the difference between Unity Sentis and TestFit?▼
Unity Sentis: Unity's AI tools sit inside the editor, generating assets, answering engine questions and running neural networks in a game at runtime. TestFit: TestFit generates and compares building site layouts against constraints and financial targets, for real estate feasibility studies.
Is Unity Sentis or TestFit more affordable?▼
Unity Sentis starts at €0/mo, TestFit starts at €300/mo. Check the comparison table above for current pricing.
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