AI Estimator

Bid due tomorrow? Get your takeoff tonight.

Drop your plan set into Slack. Get a quantified takeoff back in 30 minutes — not 30 days. Onboarding is one message, not a procurement cycle.

Async path: drop a plan set in the email. Gandalf reads it and sends the takeoff back within 30 minutes. No call required.

Real takeoff, real plan set, real time — electrical fixtures counted live.

What an AI estimator actually does

One workflow, four steps. Drop a plan set into a Slack channel and a real bid package comes back — not a chatbot answer, not a half-finished draft.

  1. 1

    Slack message

    An estimator drops a plan set into a project Slack channel and asks for what they need. No new tool, no new login.

  2. 2

    Reads drawings & specs

    The AI estimator reads every sheet, every spec section, every schedule. It treats drawings and specs as one document, the way an estimator does.

  3. 3

    Flags spec ↔ drawing mismatches

    Where the drawings say one fixture and the specs say another, the AI estimator surfaces the conflict before it becomes a change order.

  4. 4

    Takeoff + bid summary

    Quantified takeoffs across trades and a bid-ready summary — delivered back to the same Slack channel, ready to send out for pricing.

Why an AI estimator, why now

Four reasons preconstruction teams are putting AI estimators on staff this year.

1 · The shift

By the end of 2026, you’ll have your first AI estimator on staff.

Not a copilot. Not a plug-in. An always-on teammate that runs the routine preconstruction loop while your humans focus on the bids that matter.

2 · The proof

See it in 60 seconds, not 60 minutes.

A real plan set, a real Slack message, a real takeoff. No staged screens. No edited cuts. Watch the hero above.

3 · The receipts

Per-trade accuracy, published.

Electrical ≥ 0.90, mechanical ≥ 0.74, architectural ≥ 0.85. Ask any vendor for theirs. Most won’t answer.

4 · The model

One model beats thirty-seven.

The Construction Vision Model is one foundation model trained across every trade, with specialized heads on top — not a zoo of narrow models that hit a ceiling.

Per-trade F1 receipts

F1 score is the standard accuracy metric for object detection. We publish ours. Ask any vendor for theirs.

Trade F1 (current) What it covers
Electrical ≥ 0.90 Receptacles, fixtures, panels, devices, conduit runs.
Mechanical ≥ 0.74 Ductwork, fittings, equipment, piping.
Architectural ≥ 0.85 Walls, doors, windows, fixtures, finishes.

Numbers are floors on real customer plan sets, not best-case demo decks. If a vendor won’t publish theirs, that’s the answer.

Put Gandalf on a real bid

Try it on your own plans. Then put it to work.

Book a 20-minute call to get your workspace provisioned and your first takeoff back in the same call — or drop a plan set into plans@getboon.ai and Gandalf returns a quantified takeoff in 30 minutes.

Advancing Preconstruction 2026

From Advancing Preconstruction 2026

What we said on stage, the demo we ran in the booth, and the library.

Five-minute best-of from the keynote — the construction vision model thesis, the F1 receipts, and the offer.

Want the full 30-minute keynote, the 60-second shorts, or the BBB Ep 77 cuts? They’re on our YouTube channel.

Drop a plan set. Get the takeoff tonight.

Book a 20-minute call — we’ll provision your workspace and run your first takeoff on the call. Or email a plan set to plans@getboon.ai and Gandalf returns the takeoff in 30 minutes.