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Intelligence · Smart Bricks models

The engine behind every number.

7 in 10 agent tasks run on our proprietary models, tailored for real estate and hosted on our own GPUs. The rest are routed, task by task, across 30+ frontier AI models.

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Model routing125 Old Broad StreetOffice · 329,200 sq ft

This runSmart Bricks models 7 of 10Frontier 2Engine 1

A sample run on our sample deal. Select a task to see why it went where it did.

What the models are

Our models have read the asset class.

Model card

Smart Bricks proprietary models

Tailored for
Real estate
Hosting
Self-hosted, on our own GPUs
Developed by
The Smart Bricks team
Agent tasks
7 in 10

A frontier model

Has read the internet

  • OpenAI
  • Anthropic
  • Google

Handles language

A Smart Bricks model

Has read the asset class

  • Lease documents
  • Rent rolls
  • Title records
  • Completed transactions

Handles real estate

Training data

Fine-tuned on lease documents, rent rolls, title records and completed transactions.

Each transaction enriches our data, and that data is what we fine-tune the next model generation on. Client data and decisions join it only with that client’s consent.

Training setNext model generation
  • Lease documentsLease-level economicsIncluded
  • Rent rollsTenants, rents and expiriesIncluded
  • Title recordsResolved ownership chainsIncluded
  • Completed transactionsConfirmed pricesIncluded
  • Off-market supplyWhat no feed sellsIncluded
  • Client data and decisionsWhat each client decides on the platformOnly with that client’s consent

Routing

No dependency on a single lab.

If a model provider changes price or terms, your work does not stop: each task reroutes to the next best model, and your workflows, memory and audit trail stay put.

Model registry30+ frontier models
  • Smart Bricks modelSelf-hosted
  • OpenAIFrontier, routed per task
  • AnthropicFrontier, routed per task
  • GoogleFrontier, routed per task
  • Open modelsLlamaMistralQwenDeepSeek
  • and more, routed per task

Every route is chosen on

  • Quality
  • Cost
  • Latency
  • Fallback
  • Compliance
  • Evals
Routing logMid-workflow
  • Provider degradesRerouted to the next best model
  • Provider repricesRerouted on cost
  • Provider restricts accessRerouted on compliance

Model validation

Every model is tested on transactions it has never seen.

Error is measured against confirmed transaction prices, not list prices or automated estimates, market by market, and the models stay under watch in production.

Walk-forward validation6-month rolling windows
  1. 01
  2. 02
  3. 03
  4. 04
  5. 05
  6. 06

Train Test

Backtesting methodology
Split
Temporal. The test set is the most recent transactions, never exposed during training.
Walk-forward
Validation across 6-month rolling windows, to prevent lookahead bias.
Error
Median absolute error against confirmed transaction prices, not list prices or automated estimates.
Markets
Separate sub-models per market, unified by a meta-learner for cross-market signal.
In production
Tracked against closed transactions since January 2024. Drift detection triggers retraining.
ResultsHeld-out test sets
Median absolute error
4.5%
Hit rate
94%

Across New York, London and Dubai, on transactions the models never saw in training. Hit rate is the share of valuations that land inside the model’s confidence band.

BenchmarkInternal, vs general-purpose agents
MeasureGeneric LLMSmart Bricks ModelsDifference
SpeedFinancial analysis, 76 files255s80s3.2x faster
TokensSame run, total consumed69k48k1.4x fewer
AccuracyComplex modelling tasks done right43%95%2.2x more accurate

Smart Bricks internal benchmark vs general-purpose agents: our own model completes real estate workflows faster, at lower cost and with materially higher accuracy.

In a real deal

It all lands as finished work a committee can act on.

The sample deal as it reaches the investment committee: what came back, and which kind of model did the work.

125 Old Broad Street, LondonOffice · 329,200 sq ft · £385m

Smart Bricks Investment Score

87 / 100

Evidence confidence 95%

Entry yield of 5.4% stabilising to 6.2%, a 14.8% five-year levered IRR and a 1.9x equity multiple on a £385m acquisition. The downside case (ERV -10%, exit yield +75bps) holds a 7.1% IRR.

  • WAULT6.3 yearsSmart Bricks model
  • Top 5 tenants61% of NOISmart Bricks model
  • Entry yield5.4%Smart Bricks model
  • Stabilised yield6.2%Smart Bricks model
  • Levered IRR14.8%Deterministic engine
  • Downside IRR7.1%Deterministic engine
Delivered6 outputs
  • Investment recommendation
  • Underwriting and scenarios
  • Maximum supportable price
  • Risks and exceptions
  • Client Excel model
  • IC materials

IC review

Humans review, challenge and approve material judgement.

A frontier model has read the internet. Ours have read the asset class.